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[taler-donau] branch master updated: [build] adjust Makefile and add err


From: gnunet
Subject: [taler-donau] branch master updated: [build] adjust Makefile and add error codes
Date: Wed, 06 Dec 2023 12:01:32 +0100

This is an automated email from the git hooks/post-receive script.

lukas-matyja pushed a commit to branch master
in repository donau.

The following commit(s) were added to refs/heads/master by this push:
     new 2d46531  [build] adjust Makefile and add error codes
2d46531 is described below

commit 2d465315b5eca681ad9c68441e341d83641d15ba
Author: Matyja Lukas Adam <lukas.matyja@students.bfh.ch>
AuthorDate: Wed Dec 6 12:01:34 2023 +0100

    [build] adjust Makefile and add error codes
---
 .gitignore                            |    2 +
 src/donaudb/Makefile.am               |    1 -
 src/donaudb/plugin_donaudb_postgres.c |    2 +-
 src/util/taler_error_codes.c          | 3499 +++++++++++++++++++++++++++++++++
 4 files changed, 3502 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index 399db64..b467486 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,5 @@ src/include/donau_signatures.h
 *.md5~
 *.unc-backup~
 *.orig
+src/donau-tools/taler-donau-dbinit
+src/donau/donau-httpd
diff --git a/src/donaudb/Makefile.am b/src/donaudb/Makefile.am
index 313be19..11c5305 100644
--- a/src/donaudb/Makefile.am
+++ b/src/donaudb/Makefile.am
@@ -68,7 +68,6 @@ plugin_LTLIBRARIES = \
 endif
 
 libtaler_plugin_donaudb_postgres_la_SOURCES = \
-  plugin_donaudb_common.c plugin_donaudb_common.h \
   plugin_donaudb_postgres.c pg_helper.h
 libtaler_plugin_donaudb_postgres_la_LIBADD = \
   $(LTLIBINTL)
diff --git a/src/donaudb/plugin_donaudb_postgres.c 
b/src/donaudb/plugin_donaudb_postgres.c
index 3d63ff6..2a4dff6 100644
--- a/src/donaudb/plugin_donaudb_postgres.c
+++ b/src/donaudb/plugin_donaudb_postgres.c
@@ -33,7 +33,7 @@
 #include "taler/taler_util.h"
 #include "taler/taler_json_lib.h"
 #include "donaudb_plugin.h"
-#include "plugin_donaudb_common.h"
+// #include "plugin_donaudb_common.h"
 // #include "pg_delete_aggregation_transient.h"
 // #include "pg_get_link_data.h"
 #include "pg_helper.h"
diff --git a/src/util/taler_error_codes.c b/src/util/taler_error_codes.c
new file mode 100644
index 0000000..5cdee5c
--- /dev/null
+++ b/src/util/taler_error_codes.c
@@ -0,0 +1,3499 @@
+/*
+     This file is part of GNU Taler
+     Copyright (C) 2012-2020 Taler Systems SA
+
+     GNU Taler is free software: you can redistribute it and/or modify it
+     under the terms of the GNU Lesser General Public License as published
+     by the Free Software Foundation, either version 3 of the License,
+     or (at your option) any later version.
+
+     GNU Taler is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     Lesser General Public License for more details.
+
+     You should have received a copy of the GNU Lesser General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     SPDX-License-Identifier: LGPL3.0-or-later
+
+     Note: the LGPL does not apply to all components of GNU Taler,
+     but it does apply to this file.
+ */
+#include "taler_error_codes.h"
+#include <stddef.h>
+#include <microhttpd.h>
+#include <gettext.h>
+
+/**
+ * MHD does not define our value for 0 (client-side generated code).
+ */
+#define MHD_HTTP_UNINITIALIZED 0
+
+/**
+ * A pair containing an error code and its hint.
+ */
+struct ErrorCodeAndHint
+{
+  /**
+   * The error code.
+   */
+  enum TALER_ErrorCode ec;
+
+  /**
+   * The hint.
+   */
+  const char *hint;
+
+  /**
+   * The HTTP status code.
+   */
+  unsigned int http_code;
+};
+
+
+/**
+ * The list of all error codes with their hints.
+ */
+static const struct ErrorCodeAndHint code_hint_pairs[] = {
+
+  {
+    .ec = TALER_EC_NONE,
+    .hint = gettext_noop ("Special code to indicate success (no error)."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_INVALID,
+    .hint = gettext_noop ("A non-integer error code was returned in the JSON 
response."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_CLIENT_INTERNAL_ERROR,
+    .hint = gettext_noop ("An internal failure happened on the client side."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_INVALID_RESPONSE,
+    .hint = gettext_noop ("The response we got from the server was not even in 
JSON format."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_TIMEOUT,
+    .hint = gettext_noop ("An operation timed out."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_VERSION_MALFORMED,
+    .hint = gettext_noop ("The version string given does not follow the 
expected CURRENT:REVISION:AGE Format."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_REPLY_MALFORMED,
+    .hint = gettext_noop ("The service responded with a reply that was in JSON 
but did not satsify the protocol. Note that invalid cryptographic signatures 
should have signature-specific error codes."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_CONFIGURATION_INVALID,
+    .hint = gettext_noop ("There is an error in the client-side configuration, 
for example the base URL specified is malformed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_UNEXPECTED_REQUEST_ERROR,
+    .hint = gettext_noop ("The client made a request to a service, but 
received an error response it does not know how to handle."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_TOKEN_PERMISSION_INSUFFICIENT,
+    .hint = gettext_noop ("The token used by the client to authorize the 
request does not grant the required permissions for the request."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_METHOD_INVALID,
+    .hint = gettext_noop ("The HTTP method used is invalid for this 
endpoint."),
+    .http_code = MHD_HTTP_METHOD_NOT_ALLOWED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_ENDPOINT_UNKNOWN,
+    .hint = gettext_noop ("There is no endpoint defined for the URL provided 
by the client."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_JSON_INVALID,
+    .hint = gettext_noop ("The JSON in the client's request was malformed 
(generic parse error)."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_HTTP_HEADERS_MALFORMED,
+    .hint = gettext_noop ("Some of the HTTP headers provided by the client 
caused the server to not be able to handle the request."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_PAYTO_URI_MALFORMED,
+    .hint = gettext_noop ("The payto:// URI provided by the client is 
malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_PARAMETER_MISSING,
+    .hint = gettext_noop ("A required parameter in the request was missing."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_PARAMETER_MALFORMED,
+    .hint = gettext_noop ("A parameter in the request was malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_RESERVE_PUB_MALFORMED,
+    .hint = gettext_noop ("The reserve public key given as part of a 
/reserves/ endpoint was malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_COMPRESSION_INVALID,
+    .hint = gettext_noop ("The body in the request could not be decompressed 
by the server."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_CURRENCY_MISMATCH,
+    .hint = gettext_noop ("The currency involved in the operation is not 
acceptable for this backend."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_URI_TOO_LONG,
+    .hint = gettext_noop ("The URI is longer than the longest URI the HTTP 
server is willing to parse."),
+    .http_code = MHD_HTTP_URI_TOO_LONG
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_UPLOAD_EXCEEDS_LIMIT,
+    .hint = gettext_noop ("The body is too large to be permissible for the 
endpoint."),
+    .http_code = MHD_HTTP_CONTENT_TOO_LARGE
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_UNAUTHORIZED,
+    .hint = gettext_noop ("The service refused the request due to lack of 
proper authorization."),
+    .http_code = MHD_HTTP_UNAUTHORIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_TOKEN_UNKNOWN,
+    .hint = gettext_noop ("The service refused the request as the given 
authorization token is unknown."),
+    .http_code = MHD_HTTP_UNAUTHORIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_TOKEN_EXPIRED,
+    .hint = gettext_noop ("The service refused the request as the given 
authorization token expired."),
+    .http_code = MHD_HTTP_UNAUTHORIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_TOKEN_MALFORMED,
+    .hint = gettext_noop ("The service refused the request as the given 
authorization token is malformed."),
+    .http_code = MHD_HTTP_UNAUTHORIZED
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_FORBIDDEN,
+    .hint = gettext_noop ("The service refused the request due to lack of 
proper rights on the resource."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_DB_SETUP_FAILED,
+    .hint = gettext_noop ("The service failed initialize its connection to the 
database."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_DB_START_FAILED,
+    .hint = gettext_noop ("The service encountered an error event to just 
start the database transaction."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_DB_STORE_FAILED,
+    .hint = gettext_noop ("The service failed to store information in its 
database."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_DB_FETCH_FAILED,
+    .hint = gettext_noop ("The service failed to fetch information from its 
database."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_DB_COMMIT_FAILED,
+    .hint = gettext_noop ("The service encountered an error event to commit 
the database transaction (hard, unrecoverable error)."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_DB_SOFT_FAILURE,
+    .hint = gettext_noop ("The service encountered an error event to commit 
the database transaction, even after repeatedly retrying it there was always a 
conflicting transaction. (This indicates a repeated serialization error; should 
only happen if some client maliciously tries to create conflicting concurrent 
transactions.)"),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_DB_INVARIANT_FAILURE,
+    .hint = gettext_noop ("The service's database is inconsistent and violates 
service-internal invariants."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE,
+    .hint = gettext_noop ("The HTTP server experienced an internal invariant 
failure (bug)."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_FAILED_COMPUTE_JSON_HASH,
+    .hint = gettext_noop ("The service could not compute a cryptographic hash 
over some JSON value."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_FAILED_COMPUTE_AMOUNT,
+    .hint = gettext_noop ("The service could not compute an amount."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_PARSER_OUT_OF_MEMORY,
+    .hint = gettext_noop ("The HTTP server had insufficient memory to parse 
the request."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_ALLOCATION_FAILURE,
+    .hint = gettext_noop ("The HTTP server failed to allocate memory."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_JSON_ALLOCATION_FAILURE,
+    .hint = gettext_noop ("The HTTP server failed to allocate memory for 
building JSON reply."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_CURL_ALLOCATION_FAILURE,
+    .hint = gettext_noop ("The HTTP server failed to allocate memory for 
making a CURL request."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_FAILED_TO_LOAD_TEMPLATE,
+    .hint = gettext_noop ("The backend could not locate a required template to 
generate an HTML reply."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_GENERIC_FAILED_TO_EXPAND_TEMPLATE,
+    .hint = gettext_noop ("The backend could not expand the template to 
generate an HTML reply."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_BAD_CONFIGURATION,
+    .hint = gettext_noop ("Exchange is badly configured and thus cannot 
operate."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_OPERATION_UNKNOWN,
+    .hint = gettext_noop ("Operation specified unknown for this endpoint."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_WRONG_NUMBER_OF_SEGMENTS,
+    .hint = gettext_noop ("The number of segments included in the URI does not 
match the number of segments expected by the endpoint."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_COIN_CONFLICTING_DENOMINATION_KEY,
+    .hint = gettext_noop ("The same coin was already used with a different 
denomination previously."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_COINS_INVALID_COIN_PUB,
+    .hint = gettext_noop ("The public key of given to a \"/coins/\" endpoint 
of the exchange was malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN,
+    .hint = gettext_noop ("The exchange is not aware of the denomination key 
the wallet requested for the operation."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DENOMINATION_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature of the denomination key over the coin 
is not valid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_KEYS_MISSING,
+    .hint = gettext_noop ("The exchange failed to perform the operation as it 
could not find the private keys. This is a problem with the exchange setup, not 
with the client's request."),
+    .http_code = MHD_HTTP_SERVICE_UNAVAILABLE
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_DENOMINATION_VALIDITY_IN_FUTURE,
+    .hint = gettext_noop ("Validity period of the denomination lies in the 
future."),
+    .http_code = MHD_HTTP_PRECONDITION_FAILED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_DENOMINATION_EXPIRED,
+    .hint = gettext_noop ("Denomination key of the coin is past its expiration 
time for the requested operation."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_DENOMINATION_REVOKED,
+    .hint = gettext_noop ("Denomination key of the coin has been revoked."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_SECMOD_TIMEOUT,
+    .hint = gettext_noop ("An operation where the exchange interacted with a 
security module timed out."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_INSUFFICIENT_FUNDS,
+    .hint = gettext_noop ("The respective coin did not have sufficient 
residual value for the operation.  The \"history\" in this response provides 
the \"residual_value\" of the coin, which may be less than its 
\"original_value\"."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_COIN_HISTORY_COMPUTATION_FAILED,
+    .hint = gettext_noop ("The exchange had an internal error reconstructing 
the transaction history of the coin that was being processed."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_HISTORY_DB_ERROR_INSUFFICIENT_FUNDS,
+    .hint = gettext_noop ("The exchange failed to obtain the transaction 
history of the given coin from the database while generating an insufficient 
funds errors."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_COIN_CONFLICTING_AGE_HASH,
+    .hint = gettext_noop ("The same coin was already used with a different age 
hash previously."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_INVALID_DENOMINATION_CIPHER_FOR_OPERATION,
+    .hint = gettext_noop ("The requested operation is not valid for the cipher 
used by the selected denomination."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_CIPHER_MISMATCH,
+    .hint = gettext_noop ("The provided arguments for the operation use 
inconsistent ciphers."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_NEW_DENOMS_ARRAY_SIZE_EXCESSIVE,
+    .hint = gettext_noop ("The number of denominations specified in the 
request exceeds the limit of the exchange."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_COIN_UNKNOWN,
+    .hint = gettext_noop ("The coin is not known to the exchange (yet)."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_CLOCK_SKEW,
+    .hint = gettext_noop ("The time at the server is too far off from the time 
specified in the request. Most likely the client system time is wrong."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_AMOUNT_EXCEEDS_DENOMINATION_VALUE,
+    .hint = gettext_noop ("The specified amount for the coin is higher than 
the value of the denomination of the coin."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_GLOBAL_FEES_MISSING,
+    .hint = gettext_noop ("The exchange was not properly configured with 
global fees."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_WIRE_FEES_MISSING,
+    .hint = gettext_noop ("The exchange was not properly configured with wire 
fees."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_PURSE_PUB_MALFORMED,
+    .hint = gettext_noop ("The purse public key was malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_PURSE_UNKNOWN,
+    .hint = gettext_noop ("The purse is unknown."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_PURSE_EXPIRED,
+    .hint = gettext_noop ("The purse has expired."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_RESERVE_UNKNOWN,
+    .hint = gettext_noop ("The exchange has no information about the 
\"reserve_pub\" that was given."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_KYC_REQUIRED,
+    .hint = gettext_noop ("The exchange is not allowed to proceed with the 
operation until the client has satisfied a KYC check."),
+    .http_code = MHD_HTTP_UNAVAILABLE_FOR_LEGAL_REASONS
+  },
+
+  {
+    .ec = 
TALER_EC_EXCHANGE_PURSE_DEPOSIT_COIN_CONFLICTING_ATTEST_VS_AGE_COMMITMENT,
+    .hint = gettext_noop ("Inconsistency between provided age commitment and 
attest: either none or both must be provided"),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_DEPOSIT_COIN_AGE_ATTESTATION_FAILURE,
+    .hint = gettext_noop ("The provided attestation for the minimum age 
couldn't be verified by the exchange."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_PURSE_DELETED,
+    .hint = gettext_noop ("The purse was deleted."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_AML_OFFICER_PUB_MALFORMED,
+    .hint = gettext_noop ("The public key of the AML officer in the URL was 
malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_AML_OFFICER_GET_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature affirming the GET request of the AML 
officer is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_AML_OFFICER_ACCESS_DENIED,
+    .hint = gettext_noop ("The specified AML officer does not have access at 
this time."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_AML_PENDING,
+    .hint = gettext_noop ("The requested operation is denied pending the 
resolution of an anti-money laundering investigation by the exchange operator. 
This is a manual process, please wait and retry later."),
+    .http_code = MHD_HTTP_UNAVAILABLE_FOR_LEGAL_REASONS
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_AML_FROZEN,
+    .hint = gettext_noop ("The requested operation is denied as the account 
was frozen on suspicion of money laundering. Please contact the exchange 
operator."),
+    .http_code = MHD_HTTP_UNAVAILABLE_FOR_LEGAL_REASONS
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GENERIC_KYC_CONVERTER_FAILED,
+    .hint = gettext_noop ("The exchange failed to start a KYC attribute 
conversion helper process. It is likely configured incorrectly."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSITS_GET_NOT_FOUND,
+    .hint = gettext_noop ("The exchange did not find information about the 
specified transaction in the database."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSITS_GET_INVALID_H_WIRE,
+    .hint = gettext_noop ("The wire hash of given to a \"/deposits/\" handler 
was malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSITS_GET_INVALID_MERCHANT_PUB,
+    .hint = gettext_noop ("The merchant key of given to a \"/deposits/\" 
handler was malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSITS_GET_INVALID_H_CONTRACT_TERMS,
+    .hint = gettext_noop ("The hash of the contract terms given to a 
\"/deposits/\" handler was malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSITS_GET_INVALID_COIN_PUB,
+    .hint = gettext_noop ("The coin public key of given to a \"/deposits/\" 
handler was malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSITS_GET_INVALID_SIGNATURE_BY_EXCHANGE,
+    .hint = gettext_noop ("The signature returned by the exchange in a 
/deposits/ request was malformed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSITS_GET_MERCHANT_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature of the merchant is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSITS_POLICY_NOT_ACCEPTED,
+    .hint = gettext_noop ("The provided policy data was not accepted"),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WITHDRAW_INSUFFICIENT_FUNDS,
+    .hint = gettext_noop ("The given reserve does not have sufficient funds to 
admit the requested withdraw operation at this time.  The response includes the 
current \"balance\" of the reserve as well as the transaction \"history\" that 
lead to this balance."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AGE_WITHDRAW_INSUFFICIENT_FUNDS,
+    .hint = gettext_noop ("The given reserve does not have sufficient funds to 
admit the requested age-withdraw operation at this time.  The response includes 
the current \"balance\" of the reserve as well as the transaction \"history\" 
that lead to this balance."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WITHDRAW_AMOUNT_FEE_OVERFLOW,
+    .hint = gettext_noop ("The amount to withdraw together with the fee 
exceeds the numeric range for Taler amounts.  This is not a client failure, as 
the coin value and fees come from the exchange's configuration."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WITHDRAW_SIGNATURE_FAILED,
+    .hint = gettext_noop ("The exchange failed to create the signature using 
the denomination key."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WITHDRAW_RESERVE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature of the reserve is not valid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVE_HISTORY_ERROR_INSUFFICIENT_FUNDS,
+    .hint = gettext_noop ("When computing the reserve history, we ended up 
with a negative overall balance, which should be impossible."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_GET_RESERVE_HISTORY_ERROR_INSUFFICIENT_BALANCE,
+    .hint = gettext_noop ("The reserve did not have sufficient funds in it to 
pay for a full reserve history statement."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WITHDRAW_DENOMINATION_KEY_LOST,
+    .hint = gettext_noop ("Withdraw period of the coin to be withdrawn is in 
the past."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WITHDRAW_UNBLIND_FAILURE,
+    .hint = gettext_noop ("The client failed to unblind the blind signature."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WITHDRAW_NONCE_REUSE,
+    .hint = gettext_noop ("The client re-used a withdraw nonce, which is not 
allowed."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AGE_WITHDRAW_COMMITMENT_UNKNOWN,
+    .hint = gettext_noop ("The client provided an unknown commitment for an 
age-withdraw request."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AGE_WITHDRAW_AMOUNT_OVERFLOW,
+    .hint = gettext_noop ("The total sum of amounts from the denominations did 
overflow."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AGE_WITHDRAW_AMOUNT_INCORRECT,
+    .hint = gettext_noop ("The total sum of value and fees from the 
denominations differs from the committed amount with fees."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AGE_WITHDRAW_REVEAL_INVALID_HASH,
+    .hint = gettext_noop ("The original commitment differs from the calculated 
hash"),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AGE_WITHDRAW_MAXIMUM_AGE_TOO_LARGE,
+    .hint = gettext_noop ("The maximum age in the commitment is too large for 
the reserve"),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WITHDRAW_BATCH_IDEMPOTENT_PLANCHET,
+    .hint = gettext_noop ("The batch withdraw included a planchet that was 
already withdrawn. This is not allowed."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSIT_COIN_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature made by the coin over the deposit 
permission is not valid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSIT_CONFLICTING_CONTRACT,
+    .hint = gettext_noop ("The same coin was already deposited for the same 
merchant and contract with other details."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSIT_NEGATIVE_VALUE_AFTER_FEE,
+    .hint = gettext_noop ("The stated value of the coin after the deposit fee 
is subtracted would be negative."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSIT_REFUND_DEADLINE_AFTER_WIRE_DEADLINE,
+    .hint = gettext_noop ("The stated refund deadline is after the wire 
deadline."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSIT_WIRE_DEADLINE_IS_NEVER,
+    .hint = gettext_noop ("The stated wire deadline is \"never\", which makes 
no sense."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSIT_INVALID_WIRE_FORMAT_JSON,
+    .hint = gettext_noop ("The exchange failed to canonicalize and hash the 
given wire format. For example, the merchant failed to provide the \"salt\" or 
a valid payto:// URI in the wire details.  Note that while the exchange will do 
some basic sanity checking on the wire details, it cannot warrant that the 
banking system will ultimately be able to route to the specified address, even 
if this check passed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSIT_INVALID_WIRE_FORMAT_CONTRACT_HASH_CONFLICT,
+    .hint = gettext_noop ("The hash of the given wire address does not match 
the wire hash specified in the proposal data."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSIT_INVALID_SIGNATURE_BY_EXCHANGE,
+    .hint = gettext_noop ("The signature provided by the exchange is not 
valid."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DEPOSIT_FEE_ABOVE_AMOUNT,
+    .hint = gettext_noop ("The deposited amount is smaller than the deposit 
fee, which would result in a negative contribution."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_EXTENSIONS_INVALID_FULFILLMENT,
+    .hint = gettext_noop ("The proof of policy fulfillment was invalid."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_COIN_HISTORY_BAD_SIGNATURE,
+    .hint = gettext_noop ("The coin history was requested with a bad 
signature."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVE_HISTORY_BAD_SIGNATURE,
+    .hint = gettext_noop ("The reserve history was requested with a bad 
signature."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MELT_FEES_EXCEED_CONTRIBUTION,
+    .hint = gettext_noop ("The exchange encountered melt fees exceeding the 
melted coin's contribution."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MELT_COIN_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature made with the coin to be melted is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MELT_COIN_EXPIRED_NO_ZOMBIE,
+    .hint = gettext_noop ("The denomination of the given coin has past its 
expiration date and it is also not a valid zombie (that is, was not refreshed 
with the fresh coin being subjected to recoup)."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MELT_INVALID_SIGNATURE_BY_EXCHANGE,
+    .hint = gettext_noop ("The signature returned by the exchange in a melt 
request was malformed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFRESHES_REVEAL_COMMITMENT_VIOLATION,
+    .hint = gettext_noop ("The provided transfer keys do not match up with the 
original commitment.  Information about the original commitment is included in 
the response."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFRESHES_REVEAL_SIGNING_ERROR,
+    .hint = gettext_noop ("Failed to produce the blinded signatures over the 
coins to be returned."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFRESHES_REVEAL_SESSION_UNKNOWN,
+    .hint = gettext_noop ("The exchange is unaware of the refresh session 
specified in the request."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFRESHES_REVEAL_CNC_TRANSFER_ARRAY_SIZE_INVALID,
+    .hint = gettext_noop ("The size of the cut-and-choose dimension of the 
private transfer keys request does not match #TALER_CNC_KAPPA - 1."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFRESHES_REVEAL_NEW_DENOMS_ARRAY_SIZE_MISMATCH,
+    .hint = gettext_noop ("The number of envelopes given does not match the 
number of denomination keys given."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFRESHES_REVEAL_COST_CALCULATION_OVERFLOW,
+    .hint = gettext_noop ("The exchange encountered a numeric overflow 
totaling up the cost for the refresh operation."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFRESHES_REVEAL_AMOUNT_INSUFFICIENT,
+    .hint = gettext_noop ("The exchange's cost calculation shows that the melt 
amount is below the costs of the transaction."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFRESHES_REVEAL_LINK_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature made with the coin over the link data 
is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFRESHES_REVEAL_INVALID_RCH,
+    .hint = gettext_noop ("The refresh session hash given to a /refreshes/ 
handler was malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFRESHES_REVEAL_OPERATION_INVALID,
+    .hint = gettext_noop ("Operation specified invalid for this endpoint."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFRESHES_REVEAL_AGE_RESTRICTION_NOT_SUPPORTED,
+    .hint = gettext_noop ("The client provided age commitment data, but age 
restriction is not supported on this server."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = 
TALER_EC_EXCHANGE_REFRESHES_REVEAL_AGE_RESTRICTION_COMMITMENT_INVALID,
+    .hint = gettext_noop ("The client provided invalid age commitment data: 
missing, not an array, or  array of invalid size."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_LINK_COIN_UNKNOWN,
+    .hint = gettext_noop ("The coin specified in the link request is unknown 
to the exchange."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_TRANSFERS_GET_WTID_MALFORMED,
+    .hint = gettext_noop ("The public key of given to a /transfers/ handler 
was malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_TRANSFERS_GET_WTID_NOT_FOUND,
+    .hint = gettext_noop ("The exchange did not find information about the 
specified wire transfer identifier in the database."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_TRANSFERS_GET_WIRE_FEE_NOT_FOUND,
+    .hint = gettext_noop ("The exchange did not find information about the 
wire transfer fees it charged."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_TRANSFERS_GET_WIRE_FEE_INCONSISTENT,
+    .hint = gettext_noop ("The exchange found a wire fee that was above the 
total transfer value (and thus could not have been charged)."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSES_INVALID_WAIT_TARGET,
+    .hint = gettext_noop ("The wait target of the URL was not in the set of 
expected values."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSES_GET_INVALID_SIGNATURE_BY_EXCHANGE,
+    .hint = gettext_noop ("The signature on the purse status returned by the 
exchange was invalid."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFUND_COIN_NOT_FOUND,
+    .hint = gettext_noop ("The exchange knows literally nothing about the coin 
we were asked to refund. But without a transaction history, we cannot issue a 
refund. This is kind-of OK, the owner should just refresh it directly without 
executing the refund."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFUND_CONFLICT_DEPOSIT_INSUFFICIENT,
+    .hint = gettext_noop ("We could not process the refund request as the 
coin's transaction history does not permit the requested refund because then 
refunds would exceed the deposit amount.  The \"history\" in the response 
proves this."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFUND_DEPOSIT_NOT_FOUND,
+    .hint = gettext_noop ("The exchange knows about the coin we were asked to 
refund, but not about the specific /deposit operation.  Hence, we cannot issue 
a refund (as we do not know if this merchant public key is authorized to do a 
refund)."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFUND_MERCHANT_ALREADY_PAID,
+    .hint = gettext_noop ("The exchange can no longer refund the customer/coin 
as the money was already transferred (paid out) to the merchant. (It should be 
past the refund deadline.)"),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFUND_FEE_TOO_LOW,
+    .hint = gettext_noop ("The refund fee specified for the request is lower 
than the refund fee charged by the exchange for the given denomination key of 
the refunded coin."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFUND_FEE_ABOVE_AMOUNT,
+    .hint = gettext_noop ("The refunded amount is smaller than the refund fee, 
which would result in a negative refund."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFUND_MERCHANT_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature of the merchant is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFUND_MERCHANT_SIGNING_FAILED,
+    .hint = gettext_noop ("Merchant backend failed to create the refund 
confirmation signature."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFUND_INVALID_SIGNATURE_BY_EXCHANGE,
+    .hint = gettext_noop ("The signature returned by the exchange in a refund 
request was malformed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFUND_INVALID_FAILURE_PROOF_BY_EXCHANGE,
+    .hint = gettext_noop ("The failure proof returned by the exchange is 
incorrect."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_REFUND_INCONSISTENT_AMOUNT,
+    .hint = gettext_noop ("Conflicting refund granted before with different 
amount but same refund transaction ID."),
+    .http_code = MHD_HTTP_FAILED_DEPENDENCY
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RECOUP_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The given coin signature is invalid for the 
request."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RECOUP_WITHDRAW_NOT_FOUND,
+    .hint = gettext_noop ("The exchange could not find the corresponding 
withdraw operation. The request is denied."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RECOUP_COIN_BALANCE_ZERO,
+    .hint = gettext_noop ("The coin's remaining balance is zero.  The request 
is denied."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RECOUP_BLINDING_FAILED,
+    .hint = gettext_noop ("The exchange failed to reproduce the coin's 
blinding."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RECOUP_COIN_BALANCE_NEGATIVE,
+    .hint = gettext_noop ("The coin's remaining balance is zero.  The request 
is denied."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RECOUP_NOT_ELIGIBLE,
+    .hint = gettext_noop ("The coin's denomination has not been revoked yet."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RECOUP_REFRESH_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The given coin signature is invalid for the 
request."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RECOUP_REFRESH_MELT_NOT_FOUND,
+    .hint = gettext_noop ("The exchange could not find the corresponding melt 
operation. The request is denied."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RECOUP_REFRESH_BLINDING_FAILED,
+    .hint = gettext_noop ("The exchange failed to reproduce the coin's 
blinding."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RECOUP_REFRESH_NOT_ELIGIBLE,
+    .hint = gettext_noop ("The coin's denomination has not been revoked yet."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KEYS_TIMETRAVEL_FORBIDDEN,
+    .hint = gettext_noop ("This exchange does not allow clients to request 
/keys for times other than the current (exchange) time."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WIRE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("A signature in the server's response was 
malformed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WIRE_NO_ACCOUNTS_CONFIGURED,
+    .hint = gettext_noop ("No bank accounts are enabled for the exchange. The 
administrator should enable-account using the taler-exchange-offline tool."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WIRE_INVALID_PAYTO_CONFIGURED,
+    .hint = gettext_noop ("The payto:// URI stored in the exchange database 
for its bank account is malformed."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_WIRE_FEES_NOT_CONFIGURED,
+    .hint = gettext_noop ("No wire fees are configured for an enabled wire 
method of the exchange. The administrator must set the wire-fee using the 
taler-exchange-offline tool."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_PURSE_CREATE_CONFLICTING_META_DATA,
+    .hint = gettext_noop ("This purse was previously created with different 
meta data."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_PURSE_MERGE_CONFLICTING_META_DATA,
+    .hint = gettext_noop ("This purse was previously merged with different 
meta data."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_PURSE_CREATE_INSUFFICIENT_FUNDS,
+    .hint = gettext_noop ("The reserve has insufficient funds to create 
another purse."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_PURSE_FEE_TOO_LOW,
+    .hint = gettext_noop ("The purse fee specified for the request is lower 
than the purse fee charged by the exchange at this time."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_DELETE_ALREADY_DECIDED,
+    .hint = gettext_noop ("The payment request cannot be deleted anymore, as 
it either already completed or timed out."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_DELETE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature affirming the purse deletion is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_AGE_RESTRICTION_REQUIRED,
+    .hint = gettext_noop ("Withdrawal from the reserve requires age 
restriction to be set."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DENOMINATION_HELPER_UNAVAILABLE,
+    .hint = gettext_noop ("The exchange failed to talk to the process 
responsible for its private denomination keys or the helpers had no 
denominations (properly) configured."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DENOMINATION_HELPER_BUG,
+    .hint = gettext_noop ("The response from the denomination key helper 
process was malformed."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_DENOMINATION_HELPER_TOO_EARLY,
+    .hint = gettext_noop ("The helper refuses to sign with the key, because it 
is too early: the validity period has not yet started."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_DEPOSIT_EXCHANGE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature of the exchange on the reply was 
invalid."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_SIGNKEY_HELPER_UNAVAILABLE,
+    .hint = gettext_noop ("The exchange failed to talk to the process 
responsible for its private signing keys."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG,
+    .hint = gettext_noop ("The response from the online signing key helper 
process was malformed."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_SIGNKEY_HELPER_TOO_EARLY,
+    .hint = gettext_noop ("The helper refuses to sign with the key, because it 
is too early: the validity period has not yet started."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_PURSE_EXPIRATION_BEFORE_NOW,
+    .hint = gettext_noop ("The purse expiration time is in the past at the 
time of its creation."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_PURSE_EXPIRATION_IS_NEVER,
+    .hint = gettext_noop ("The purse expiration time is set to never, which is 
not allowed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_PURSE_MERGE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature affirming the merge of the purse is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_RESERVE_MERGE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature by the reserve affirming the merge is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_OPEN_BAD_SIGNATURE,
+    .hint = gettext_noop ("The signature by the reserve affirming the open 
operation is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_CLOSE_BAD_SIGNATURE,
+    .hint = gettext_noop ("The signature by the reserve affirming the close 
operation is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_ATTEST_BAD_SIGNATURE,
+    .hint = gettext_noop ("The signature by the reserve affirming the 
attestion request is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_CLOSE_NO_TARGET_ACCOUNT,
+    .hint = gettext_noop ("The exchange does not know an origin account to 
which the remaining reserve balance could be wired to, and the wallet failed to 
provide one."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_RESERVES_OPEN_INSUFFICIENT_FUNDS,
+    .hint = gettext_noop ("The reserve balance is insufficient to pay for the 
open operation."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_AUDITOR_NOT_FOUND,
+    .hint = gettext_noop ("The auditor that was supposed to be disabled is 
unknown to this exchange."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_AUDITOR_MORE_RECENT_PRESENT,
+    .hint = gettext_noop ("The exchange has a more recently signed conflicting 
instruction and is thus refusing the current change (replay detected)."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_AUDITOR_ADD_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature to add or enable the auditor does not 
validate."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_AUDITOR_DEL_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature to disable the auditor does not 
validate."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_DENOMINATION_REVOKE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature to revoke the denomination does not 
validate."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_SIGNKEY_REVOKE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature to revoke the online signing key does 
not validate."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_WIRE_MORE_RECENT_PRESENT,
+    .hint = gettext_noop ("The exchange has a more recently signed conflicting 
instruction and is thus refusing the current change (replay detected)."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_KEYS_SIGNKEY_UNKNOWN,
+    .hint = gettext_noop ("The signingkey specified is unknown to the 
exchange."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_WIRE_DETAILS_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature to publish wire account does not 
validate."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_WIRE_ADD_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature to add the wire account does not 
validate."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_WIRE_DEL_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature to disable the wire account does not 
validate."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_WIRE_NOT_FOUND,
+    .hint = gettext_noop ("The wire account to be disabled is unknown to the 
exchange."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_WIRE_FEE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature to affirm wire fees does not 
validate."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_WIRE_FEE_MISMATCH,
+    .hint = gettext_noop ("The signature conflicts with a previous signature 
affirming different fees."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_KEYS_DENOMKEY_ADD_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature affirming the denomination key is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_KEYS_SIGNKEY_ADD_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature affirming the signing key is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_GLOBAL_FEE_MISMATCH,
+    .hint = gettext_noop ("The signature conflicts with a previous signature 
affirming different fees."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_GLOBAL_FEE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature affirming the fee structure is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_DRAIN_PROFITS_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature affirming the profit drain is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AML_DECISION_ADD_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature affirming the AML decision is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AML_DECISION_INVALID_OFFICER,
+    .hint = gettext_noop ("The AML officer specified is not allowed to make 
AML decisions right now."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AML_DECISION_MORE_RECENT_PRESENT,
+    .hint = gettext_noop ("There is a more recent AML decision on file. The 
decision was rejected as timestamps of AML decisions must be monotonically 
increasing."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AML_DECISION_UNKNOWN_CHECK,
+    .hint = gettext_noop ("There AML decision would impose an AML check of a 
type that is not provided by any KYC provider known to the exchange."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_UPDATE_AML_OFFICER_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature affirming the change in the AML 
officer status is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_AML_OFFICERS_MORE_RECENT_PRESENT,
+    .hint = gettext_noop ("A more recent decision about the AML officer status 
is known to the exchange."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_CREATE_CONFLICTING_META_DATA,
+    .hint = gettext_noop ("The purse was previously created with different 
meta data."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_CREATE_CONFLICTING_CONTRACT_STORED,
+    .hint = gettext_noop ("The purse was previously created with a different 
contract."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_CREATE_COIN_SIGNATURE_INVALID,
+    .hint = gettext_noop ("A coin signature for a deposit into the purse is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_CREATE_EXPIRATION_BEFORE_NOW,
+    .hint = gettext_noop ("The purse expiration time is in the past."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_CREATE_EXPIRATION_IS_NEVER,
+    .hint = gettext_noop ("The purse expiration time is \"never\"."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_CREATE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The purse signature over the purse meta data is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_ECONTRACT_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature over the encrypted contract is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_CREATE_EXCHANGE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature from the exchange over the 
confirmation is invalid."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_DEPOSIT_CONFLICTING_META_DATA,
+    .hint = gettext_noop ("The coin was previously deposited with different 
meta data."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_ECONTRACT_CONFLICTING_META_DATA,
+    .hint = gettext_noop ("The encrypted contract was previously uploaded with 
different meta data."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_CREATE_PURSE_NEGATIVE_VALUE_AFTER_FEE,
+    .hint = gettext_noop ("The deposited amount is less than the purse fee."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_MERGE_INVALID_MERGE_SIGNATURE,
+    .hint = gettext_noop ("The signature using the merge key is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_MERGE_INVALID_RESERVE_SIGNATURE,
+    .hint = gettext_noop ("The signature using the reserve key is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_NOT_FULL,
+    .hint = gettext_noop ("The targeted purse is not yet full and thus cannot 
be merged. Retrying the request later may succeed."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_MERGE_EXCHANGE_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature from the exchange over the 
confirmation is invalid."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MERGE_PURSE_PARTNER_UNKNOWN,
+    .hint = gettext_noop ("The exchange of the target account is not a partner 
of this exchange."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_ADD_PARTNER_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature affirming the new partner is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_MANAGEMENT_ADD_PARTNER_DATA_CONFLICT,
+    .hint = gettext_noop ("Conflicting data for the partner already exists 
with the exchange."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AUDITORS_AUDITOR_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The auditor signature over the denomination meta 
data is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AUDITORS_AUDITOR_UNKNOWN,
+    .hint = gettext_noop ("The auditor that was specified is unknown to this 
exchange."),
+    .http_code = MHD_HTTP_PRECONDITION_FAILED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_AUDITORS_AUDITOR_INACTIVE,
+    .hint = gettext_noop ("The auditor that was specified is no longer used by 
this exchange."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_WALLET_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature affirming the wallet's KYC request 
was invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_PROOF_BACKEND_INVALID_RESPONSE,
+    .hint = gettext_noop ("The exchange received an unexpected malformed 
response from its KYC backend."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_PROOF_BACKEND_ERROR,
+    .hint = gettext_noop ("The backend signaled an unexpected failure."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_PROOF_BACKEND_AUTHORIZATION_FAILED,
+    .hint = gettext_noop ("The backend signaled an authorization failure."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_PROOF_REQUEST_UNKNOWN,
+    .hint = gettext_noop ("The exchange is unaware of having made an the 
authorization request."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_CHECK_AUTHORIZATION_FAILED,
+    .hint = gettext_noop ("The payto-URI hash did not match. Hence the request 
was denied."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_GENERIC_LOGIC_UNKNOWN,
+    .hint = gettext_noop ("The request used a logic specifier that is not 
known to the exchange."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_GENERIC_LOGIC_GONE,
+    .hint = gettext_noop ("The request requires a logic which is no longer 
configured at the exchange."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_GENERIC_LOGIC_BUG,
+    .hint = gettext_noop ("The logic plugin had a bug in its interaction with 
the KYC provider."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_GENERIC_PROVIDER_ACCESS_REFUSED,
+    .hint = gettext_noop ("The exchange could not process the request with its 
KYC provider because the provider refused access to the service. This indicates 
some configuration issue at the Taler exchange operator."),
+    .http_code = MHD_HTTP_NETWORK_AUTHENTICATION_REQUIRED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_GENERIC_PROVIDER_TIMEOUT,
+    .hint = gettext_noop ("There was a timeout in the interaction between the 
exchange and the KYC provider. The most likely cause is some networking 
problem. Trying again later might succeed."),
+    .http_code = MHD_HTTP_GATEWAY_TIMEOUT
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_GENERIC_PROVIDER_UNEXPECTED_REPLY,
+    .hint = gettext_noop ("The KYC provider responded with a status that was 
completely unexpected by the KYC logic of the exchange."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_GENERIC_PROVIDER_RATE_LIMIT_EXCEEDED,
+    .hint = gettext_noop ("The rate limit of the exchange at the KYC provider 
has been exceeded. Trying much later might work."),
+    .http_code = MHD_HTTP_SERVICE_UNAVAILABLE
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_KYC_WEBHOOK_UNAUTHORIZED,
+    .hint = gettext_noop ("The request to the webhook lacked proper 
authorization or authentication data."),
+    .http_code = MHD_HTTP_UNAUTHORIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_CONTRACTS_UNKNOWN,
+    .hint = gettext_noop ("The exchange does not know a contract under the 
given contract public key."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_CONTRACTS_INVALID_CONTRACT_PUB,
+    .hint = gettext_noop ("The URL does not encode a valid exchange public key 
in its path."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_CONTRACTS_DECRYPTION_FAILED,
+    .hint = gettext_noop ("The returned encrypted contract did not decrypt."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_CONTRACTS_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature on the encrypted contract did not 
validate."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_CONTRACTS_DECODING_FAILED,
+    .hint = gettext_noop ("The decrypted contract was malformed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_DEPOSIT_COIN_SIGNATURE_INVALID,
+    .hint = gettext_noop ("A coin signature for a deposit into the purse is 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_PURSE_DEPOSIT_DECIDED_ALREADY,
+    .hint = gettext_noop ("It is too late to deposit coins into the purse."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_EXCHANGE_TOTP_KEY_INVALID,
+    .hint = gettext_noop ("TOTP key is not valid."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_INSTANCE_UNKNOWN,
+    .hint = gettext_noop ("The backend could not find the merchant instance 
specified in the request."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_HOLE_IN_WIRE_FEE_STRUCTURE,
+    .hint = gettext_noop ("The start and end-times in the wire fee structure 
leave a hole. This is not allowed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_EXCHANGE_WIRE_REQUEST_FAILED,
+    .hint = gettext_noop ("The merchant was unable to obtain a valid answer to 
/wire from the exchange."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_ORDER_UNKNOWN,
+    .hint = gettext_noop ("The proposal is not known to the backend."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_PRODUCT_UNKNOWN,
+    .hint = gettext_noop ("The order provided to the backend could not be 
completed, because a product to be completed via inventory data is not actually 
in our inventory."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_REWARD_ID_UNKNOWN,
+    .hint = gettext_noop ("The reward ID is unknown.  This could happen if the 
reward has expired."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_DB_CONTRACT_CONTENT_INVALID,
+    .hint = gettext_noop ("The contract obtained from the merchant backend was 
malformed."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_CONTRACT_HASH_DOES_NOT_MATCH_ORDER,
+    .hint = gettext_noop ("The order we found does not match the provided 
contract hash."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_EXCHANGE_KEYS_FAILURE,
+    .hint = gettext_noop ("The exchange failed to provide a valid response to 
the merchant's /keys request."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_EXCHANGE_TIMEOUT,
+    .hint = gettext_noop ("The exchange failed to respond to the merchant on 
time."),
+    .http_code = MHD_HTTP_GATEWAY_TIMEOUT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_EXCHANGE_CONNECT_FAILURE,
+    .hint = gettext_noop ("The merchant failed to talk to the exchange."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_EXCHANGE_REPLY_MALFORMED,
+    .hint = gettext_noop ("The exchange returned a maformed response."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_EXCHANGE_UNEXPECTED_STATUS,
+    .hint = gettext_noop ("The exchange returned an unexpected response 
status."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_UNAUTHORIZED,
+    .hint = gettext_noop ("The merchant refused the request due to lack of 
authorization."),
+    .http_code = MHD_HTTP_UNAUTHORIZED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_INSTANCE_DELETED,
+    .hint = gettext_noop ("The merchant instance specified in the request was 
deleted."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_TRANSFER_UNKNOWN,
+    .hint = gettext_noop ("The backend could not find the inbound wire 
transfer specified in the request."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_TEMPLATE_UNKNOWN,
+    .hint = gettext_noop ("The backend could not find the template(id) because 
it is not exist."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_WEBHOOK_UNKNOWN,
+    .hint = gettext_noop ("The backend could not find the webhook(id) because 
it is not exist."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_PENDING_WEBHOOK_UNKNOWN,
+    .hint = gettext_noop ("The backend could not find the webhook(serial) 
because it is not exist."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_OTP_DEVICE_UNKNOWN,
+    .hint = gettext_noop ("The backend could not find the OTP device(id) 
because it is not exist."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_ACCOUNT_UNKNOWN,
+    .hint = gettext_noop ("The account is not known to the backend."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_H_WIRE_MALFORMED,
+    .hint = gettext_noop ("The wire hash was malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GENERIC_CURRENCY_MISMATCH,
+    .hint = gettext_noop ("The currency specified in the operation does not 
work with the current state of the given resource."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GET_ORDERS_EXCHANGE_TRACKING_FAILURE,
+    .hint = gettext_noop ("The exchange failed to provide a valid answer to 
the tracking request, thus those details are not in the response."),
+    .http_code = MHD_HTTP_OK
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GET_ORDERS_ID_EXCHANGE_REQUEST_FAILURE,
+    .hint = gettext_noop ("The merchant backend failed to construct the 
request for tracking to the exchange, thus tracking details are not in the 
response."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GET_ORDERS_ID_EXCHANGE_LOOKUP_START_FAILURE,
+    .hint = gettext_noop ("The merchant backend failed trying to contact the 
exchange for tracking details, thus those details are not in the response."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GET_ORDERS_ID_INVALID_TOKEN,
+    .hint = gettext_noop ("The claim token used to authenticate the client is 
invalid for this order."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_GET_ORDERS_ID_INVALID_CONTRACT_HASH,
+    .hint = gettext_noop ("The contract terms hash used to authenticate the 
client is invalid for this order."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_INSUFFICIENT_FUNDS,
+    .hint = gettext_noop ("The exchange responded saying that funds were 
insufficient (for example, due to double-spending)."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_DENOMINATION_KEY_NOT_FOUND,
+    .hint = gettext_noop ("The denomination key used for payment is not listed 
among the denomination keys of the exchange."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_DENOMINATION_KEY_AUDITOR_FAILURE,
+    .hint = gettext_noop ("The denomination key used for payment is not 
audited by an auditor approved by the merchant."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_AMOUNT_OVERFLOW,
+    .hint = gettext_noop ("There was an integer overflow totaling up the 
amounts or deposit fees in the payment."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_FEES_EXCEED_PAYMENT,
+    .hint = gettext_noop ("The deposit fees exceed the total value of the 
payment."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_INSUFFICIENT_DUE_TO_FEES,
+    .hint = gettext_noop ("After considering deposit and wire fees, the 
payment is insufficient to satisfy the required amount for the contract.  The 
client should revisit the logic used to calculate fees it must cover."),
+    .http_code = MHD_HTTP_NOT_ACCEPTABLE
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_PAYMENT_INSUFFICIENT,
+    .hint = gettext_noop ("Even if we do not consider deposit and wire fees, 
the payment is insufficient to satisfy the required amount for the contract."),
+    .http_code = MHD_HTTP_NOT_ACCEPTABLE
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_COIN_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature over the contract of one of the coins 
was invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_EXCHANGE_LOOKUP_FAILED,
+    .hint = gettext_noop ("When we tried to find information about the 
exchange to issue the deposit, we failed.  This usually only happens if the 
merchant backend is somehow unable to get its own HTTP client logic to work."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_REFUND_DEADLINE_PAST_WIRE_TRANSFER_DEADLINE,
+    .hint = gettext_noop ("The refund deadline in the contract is after the 
transfer deadline."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_ALREADY_PAID,
+    .hint = gettext_noop ("The order was already paid (maybe by another 
wallet)."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_OFFER_EXPIRED,
+    .hint = gettext_noop ("The payment is too late, the offer has expired."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_MERCHANT_FIELD_MISSING,
+    .hint = gettext_noop ("The \"merchant\" field is missing in the proposal 
data. This is an internal error as the proposal is from the merchant's own 
database at this point."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_WIRE_HASH_UNKNOWN,
+    .hint = gettext_noop ("Failed to locate merchant's account information 
matching the wire hash given in the proposal."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_DENOMINATION_DEPOSIT_EXPIRED,
+    .hint = gettext_noop ("The deposit time for the denomination has 
expired."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_EXCHANGE_WIRE_FEE_ADDITION_FAILED,
+    .hint = gettext_noop ("The exchange of the deposited coin charges a wire 
fee that could not be added to the total (total amount too high)."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_REFUNDED,
+    .hint = gettext_noop ("The contract was not fully paid because of refunds. 
Note that clients MAY treat this as paid if, for example, contracts must be 
executed despite of refunds."),
+    .http_code = MHD_HTTP_PAYMENT_REQUIRED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_REFUNDS_EXCEED_PAYMENTS,
+    .hint = gettext_noop ("According to our database, we have refunded more 
than we were paid (which should not be possible)."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = 
TALER_EC_DEAD_QQQ_PAY_MERCHANT_POST_ORDERS_ID_ABORT_REFUND_REFUSED_PAYMENT_COMPLETE,
+    .hint = gettext_noop ("Legacy stuff. Remove me with protocol v1."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_EXCHANGE_FAILED,
+    .hint = gettext_noop ("The payment failed at the exchange."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_AGE_COMMITMENT_MISSING,
+    .hint = gettext_noop ("The payment required a minimum age but one of the 
coins (of a denomination with support for age restriction) did not provide any 
age_commitment."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_AGE_COMMITMENT_SIZE_MISMATCH,
+    .hint = gettext_noop ("The payment required a minimum age but one of the 
coins provided an age_commitment that contained a wrong number of public keys 
compared to the number of age groups defined in the denomination of the coin."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_AGE_VERIFICATION_FAILED,
+    .hint = gettext_noop ("The payment required a minimum age but one of the 
coins provided a minimum_age_sig that couldn't be verified with the given 
age_commitment for that particular minimum age."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_AGE_COMMITMENT_HASH_MISSING,
+    .hint = gettext_noop ("The payment required no minimum age but one of the 
coins (of a denomination with support for age restriction) did not provide the 
required h_age_commitment."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAY_WIRE_METHOD_UNSUPPORTED,
+    .hint = gettext_noop ("The exchange does not support the selected bank 
account of the merchant. Likely the merchant had stale data on the bank 
accounts of the exchange and thus selected an inappropriate exchange when 
making the offer."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAID_CONTRACT_HASH_MISMATCH,
+    .hint = gettext_noop ("The contract hash does not match the given order 
ID."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_PAID_COIN_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature of the merchant is not valid for the 
given contract hash."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_ABORT_EXCHANGE_REFUND_FAILED,
+    .hint = gettext_noop ("The merchant failed to send the exchange the refund 
request."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_ABORT_EXCHANGE_LOOKUP_FAILED,
+    .hint = gettext_noop ("The merchant failed to find the exchange to process 
the lookup."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_ABORT_CONTRACT_NOT_FOUND,
+    .hint = gettext_noop ("The merchant could not find the contract."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_POST_ORDERS_ID_ABORT_REFUND_REFUSED_PAYMENT_COMPLETE,
+    .hint = gettext_noop ("The payment was already completed and thus cannot 
be aborted anymore."),
+    .http_code = MHD_HTTP_PRECONDITION_FAILED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_ABORT_CONTRACT_HASH_MISSMATCH,
+    .hint = gettext_noop ("The hash provided by the wallet does not match the 
order."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_ABORT_COINS_ARRAY_EMPTY,
+    .hint = gettext_noop ("The array of coins cannot be empty."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_CLAIM_NOT_FOUND,
+    .hint = gettext_noop ("We could not claim the order because the backend is 
unaware of it."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_CLAIM_ALREADY_CLAIMED,
+    .hint = gettext_noop ("We could not claim the order because someone else 
claimed it first."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_CLAIM_CLIENT_INTERNAL_FAILURE,
+    .hint = gettext_noop ("The client-side experienced an internal failure."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_ORDERS_ID_REFUND_SIGNATURE_FAILED,
+    .hint = gettext_noop ("The backend failed to sign the refund request."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_REWARD_PICKUP_UNBLIND_FAILURE,
+    .hint = gettext_noop ("The client failed to unblind the signature returned 
by the merchant."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_REWARD_PICKUP_EXCHANGE_ERROR,
+    .hint = gettext_noop ("The exchange returned a failure code for the 
withdraw operation."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_REWARD_PICKUP_SUMMATION_FAILED,
+    .hint = gettext_noop ("The merchant failed to add up the amounts to 
compute the pick up value."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_REWARD_PICKUP_HAS_EXPIRED,
+    .hint = gettext_noop ("The reward expired."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_REWARD_PICKUP_AMOUNT_EXCEEDS_REWARD_REMAINING,
+    .hint = gettext_noop ("The requested withdraw amount exceeds the amount 
remaining to be picked up."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_REWARD_PICKUP_DENOMINATION_UNKNOWN,
+    .hint = gettext_noop ("The merchant did not find the specified 
denomination key in the exchange's key set."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_INSTANCE_CONFIGURATION_LACKS_WIRE,
+    .hint = gettext_noop ("The backend lacks a wire transfer method 
configuration option for the given instance. Thus, this instance is unavailable 
(not findable for creating new orders)."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_NO_LOCALTIME,
+    .hint = gettext_noop ("The proposal had no timestamp and the backend 
failed to obtain the local time. Likely to be an internal error."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_PROPOSAL_PARSE_ERROR,
+    .hint = gettext_noop ("The order provided to the backend could not be 
parsed, some required fields were missing or ill-formed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_ALREADY_EXISTS,
+    .hint = gettext_noop ("The backend encountered an error: the proposal 
already exists."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_REFUND_AFTER_WIRE_DEADLINE,
+    .hint = gettext_noop ("The request is invalid: the wire deadline is before 
the refund deadline."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_DELIVERY_DATE_IN_PAST,
+    .hint = gettext_noop ("The request is invalid: a delivery date was given, 
but it is in the past."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_WIRE_DEADLINE_IS_NEVER,
+    .hint = gettext_noop ("The request is invalid: the wire deadline for the 
order would be \"never\"."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_PAY_DEADLINE_IN_PAST,
+    .hint = gettext_noop ("The request is invalid: a payment deadline was 
given, but it is in the past."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_REFUND_DEADLINE_IN_PAST,
+    .hint = gettext_noop ("The request is invalid: a refund deadline was 
given, but it is in the past."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_NO_EXCHANGES_FOR_WIRE_METHOD,
+    .hint = gettext_noop ("The backend does not trust any exchange that would 
allow funds to be wired to any bank account of this instance using the selected 
wire method. Note that right now, we do not support the use of exchange bank 
accounts with mandatory currency conversion."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_PRIVATE_PATCH_ORDERS_ID_FORGET_PATH_SYNTAX_INCORRECT,
+    .hint = gettext_noop ("One of the paths to forget is malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_PRIVATE_PATCH_ORDERS_ID_FORGET_PATH_NOT_FORGETTABLE,
+    .hint = gettext_noop ("One of the paths to forget was not marked as 
forgettable."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_DELETE_ORDERS_AWAITING_PAYMENT,
+    .hint = gettext_noop ("The order provided to the backend could not be 
deleted, our offer is still valid and awaiting payment."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_DELETE_ORDERS_ALREADY_PAID,
+    .hint = gettext_noop ("The order provided to the backend could not be 
deleted as the order was already paid."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_ID_REFUND_INCONSISTENT_AMOUNT,
+    .hint = gettext_noop ("The amount to be refunded is inconsistent: either 
is lower than the previous amount being awarded, or it is too big to be paid 
back. In this second case, the fault stays on the business dept. side."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_ID_REFUND_ORDER_UNPAID,
+    .hint = gettext_noop ("The frontend gave an unpaid order id to issue the 
refund to."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_PRIVATE_POST_ORDERS_ID_REFUND_NOT_ALLOWED_BY_CONTRACT,
+    .hint = gettext_noop ("The refund delay was set to 0 and thus no refunds 
are allowed for this order."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_TRANSFERS_EXCHANGE_UNKNOWN,
+    .hint = gettext_noop ("The exchange says it does not know this transfer."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_TRANSFERS_REQUEST_ERROR,
+    .hint = gettext_noop ("We internally failed to execute the /track/transfer 
request."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_TRANSFERS_CONFLICTING_TRANSFERS,
+    .hint = gettext_noop ("The amount transferred differs between what was 
submitted and what the exchange claimed."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_TRANSFERS_CONFLICTING_REPORTS,
+    .hint = gettext_noop ("The exchange gave conflicting information about a 
coin which has been wire transferred."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_TRANSFERS_BAD_WIRE_FEE,
+    .hint = gettext_noop ("The exchange charged a different wire fee than what 
it originally advertised, and it is higher."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_TRANSFERS_ACCOUNT_NOT_FOUND,
+    .hint = gettext_noop ("We did not find the account that the transfer was 
made to."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_DELETE_TRANSFERS_ALREADY_CONFIRMED,
+    .hint = gettext_noop ("The backend could not delete the transfer as the 
echange already replied to our inquiry about it and we have integrated the 
result."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_TRANSFERS_CONFLICTING_SUBMISSION,
+    .hint = gettext_noop ("The backend was previously informed about a wire 
transfer with the same ID but a different amount. Multiple wire transfers with 
the same ID are not allowed. If the new amount is correct, the old transfer 
should first be deleted."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_EXCHANGE_TRANSFERS_AWAITING_KEYS,
+    .hint = gettext_noop ("We are waiting for the exchange to provide us with 
key material before checking the wire transfer."),
+    .http_code = MHD_HTTP_ACCEPTED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_EXCHANGE_TRANSFERS_AWAITING_LIST,
+    .hint = gettext_noop ("We are waiting for the exchange to provide us with 
the list of aggregated transactions."),
+    .http_code = MHD_HTTP_ACCEPTED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_EXCHANGE_TRANSFERS_FATAL_NO_EXCHANGE,
+    .hint = gettext_noop ("The endpoint indicated in the wire transfer does 
not belong to a GNU Taler exchange."),
+    .http_code = MHD_HTTP_OK
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_EXCHANGE_TRANSFERS_FATAL_NOT_FOUND,
+    .hint = gettext_noop ("The exchange indicated in the wire transfer claims 
to know nothing about the wire transfer."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_EXCHANGE_TRANSFERS_RATE_LIMITED,
+    .hint = gettext_noop ("The interaction with the exchange is delayed due to 
rate limiting."),
+    .http_code = MHD_HTTP_ACCEPTED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_EXCHANGE_TRANSFERS_TRANSIENT_FAILURE,
+    .hint = gettext_noop ("We experienced a transient failure in our 
interaction with the exchange."),
+    .http_code = MHD_HTTP_ACCEPTED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_EXCHANGE_TRANSFERS_HARD_FAILURE,
+    .hint = gettext_noop ("The response from the exchange was unacceptable and 
should be reviewed with an auditor."),
+    .http_code = MHD_HTTP_OK
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_EXCHANGE_TRANSFERS_CONFLICTING_TRANSFERS,
+    .hint = gettext_noop ("The amount transferred differs between what was 
submitted and what the exchange claimed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_INSTANCES_ALREADY_EXISTS,
+    .hint = gettext_noop ("The merchant backend cannot create an instance 
under the given identifier as one already exists. Use PATCH to modify the 
existing entry."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_INSTANCES_BAD_AUTH,
+    .hint = gettext_noop ("The merchant backend cannot create an instance 
because the authentication configuration field is malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_INSTANCE_AUTH_BAD_AUTH,
+    .hint = gettext_noop ("The merchant backend cannot update an instance's 
authentication settings because the provided authentication settings are 
malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_INSTANCES_PURGE_REQUIRED,
+    .hint = gettext_noop ("The merchant backend cannot create an instance 
under the given identifier, the previous one was deleted but must be purged 
first."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_PATCH_INSTANCES_PURGE_REQUIRED,
+    .hint = gettext_noop ("The merchant backend cannot update an instance 
under the given identifier, the previous one was deleted but must be purged 
first."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_ACCOUNT_DELETE_UNKNOWN_ACCOUNT,
+    .hint = gettext_noop ("The bank account referenced in the requested 
operation was not found."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_ACCOUNT_EXISTS,
+    .hint = gettext_noop ("The bank account specified in the request already 
exists at the merchant."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_PRODUCTS_CONFLICT_PRODUCT_EXISTS,
+    .hint = gettext_noop ("The product ID exists."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_PATCH_PRODUCTS_TOTAL_LOST_REDUCED,
+    .hint = gettext_noop ("The update would have reduced the total amount of 
product lost, which is not allowed."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_PATCH_PRODUCTS_TOTAL_LOST_EXCEEDS_STOCKS,
+    .hint = gettext_noop ("The update would have mean that more stocks were 
lost than what remains from total inventory after sales, which is not 
allowed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_PATCH_PRODUCTS_TOTAL_STOCKED_REDUCED,
+    .hint = gettext_noop ("The update would have reduced the total amount of 
product in stock, which is not allowed."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_PATCH_PRODUCTS_TOTAL_SOLD_REDUCED,
+    .hint = gettext_noop ("The update would have reduced the total amount of 
product sold, which is not allowed."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_PRODUCTS_LOCK_INSUFFICIENT_STOCKS,
+    .hint = gettext_noop ("The lock request is for more products than we have 
left (unlocked) in stock."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_DELETE_PRODUCTS_CONFLICTING_LOCK,
+    .hint = gettext_noop ("The deletion request is for a product that is 
locked."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_RESERVES_UNSUPPORTED_WIRE_METHOD,
+    .hint = gettext_noop ("The requested wire method is not supported by the 
exchange."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_RESERVES_REWARDS_NOT_ALLOWED,
+    .hint = gettext_noop ("The requested exchange does not allow rewards."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_DELETE_RESERVES_NO_SUCH_RESERVE,
+    .hint = gettext_noop ("The reserve could not be deleted because it is 
unknown."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_REWARD_AUTHORIZE_RESERVE_EXPIRED,
+    .hint = gettext_noop ("The reserve that was used to fund the rewards has 
expired."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_REWARD_AUTHORIZE_RESERVE_UNKNOWN,
+    .hint = gettext_noop ("The reserve that was used to fund the rewards was 
not found in the DB."),
+    .http_code = MHD_HTTP_SERVICE_UNAVAILABLE
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_REWARD_AUTHORIZE_INSUFFICIENT_FUNDS,
+    .hint = gettext_noop ("The backend knows the instance that was supposed to 
support the reward, and it was configured for rewardping. However, the funds 
remaining are insufficient to cover the reward, and the merchant should top up 
the reserve."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_REWARD_AUTHORIZE_RESERVE_NOT_FOUND,
+    .hint = gettext_noop ("The backend failed to find a reserve needed to 
authorize the reward."),
+    .http_code = MHD_HTTP_SERVICE_UNAVAILABLE
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_GET_ORDERS_ID_AMOUNT_ARITHMETIC_FAILURE,
+    .hint = gettext_noop ("The merchant backend encountered a failure in 
computing the deposit total."),
+    .http_code = MHD_HTTP_OK
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_TEMPLATES_CONFLICT_TEMPLATE_EXISTS,
+    .hint = gettext_noop ("The template ID already exists."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_PRIVATE_POST_OTP_DEVICES_CONFLICT_OTP_DEVICE_EXISTS,
+    .hint = gettext_noop ("The OTP device ID already exists."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_POST_USING_TEMPLATES_AMOUNT_CONFLICT_TEMPLATES_CONTRACT_AMOUNT,
+    .hint = gettext_noop ("Amount given in the using template and in the 
template contract. There is a conflict."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_POST_USING_TEMPLATES_SUMMARY_CONFLICT_TEMPLATES_CONTRACT_SUBJECT,
+    .hint = gettext_noop ("Subject given in the using template and in the 
template contract. There is a conflict."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_USING_TEMPLATES_NO_AMOUNT,
+    .hint = gettext_noop ("Amount not given in the using template and in the 
template contract. There is a conflict."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_POST_USING_TEMPLATES_NO_SUMMARY,
+    .hint = gettext_noop ("Subject not given in the using template and in the 
template contract. There is a conflict."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_MERCHANT_PRIVATE_POST_WEBHOOKS_CONFLICT_WEBHOOK_EXISTS,
+    .hint = gettext_noop ("The webhook ID elready exists."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = 
TALER_EC_MERCHANT_PRIVATE_POST_PENDING_WEBHOOKS_CONFLICT_PENDING_WEBHOOK_EXISTS,
+    .hint = gettext_noop ("The webhook serial elready exists."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_AUDITOR_DEPOSIT_CONFIRMATION_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature from the exchange on the deposit 
confirmation is invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_AUDITOR_EXCHANGE_SIGNING_KEY_REVOKED,
+    .hint = gettext_noop ("The exchange key used for the signature on the 
deposit confirmation was revoked."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_BANK_SAME_ACCOUNT,
+    .hint = gettext_noop ("Wire transfer attempted with credit and debit party 
being the same bank account."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_BANK_UNALLOWED_DEBIT,
+    .hint = gettext_noop ("Wire transfer impossible, due to financial 
limitation of the party that attempted the payment."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_NEGATIVE_NUMBER_AMOUNT,
+    .hint = gettext_noop ("Negative numbers are not allowed (as value and/or 
fraction) to instantiate an amount object."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_BANK_NUMBER_TOO_BIG,
+    .hint = gettext_noop ("A too big number was used (as value and/or 
fraction) to instantiate an amount object."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_BANK_UNKNOWN_ACCOUNT,
+    .hint = gettext_noop ("The bank account referenced in the requested 
operation was not found."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_BANK_TRANSACTION_NOT_FOUND,
+    .hint = gettext_noop ("The transaction referenced in the requested 
operation (typically a reject operation), was not found."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_BANK_BAD_FORMAT_AMOUNT,
+    .hint = gettext_noop ("Bank received a malformed amount string."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_BANK_REJECT_NO_RIGHTS,
+    .hint = gettext_noop ("The client does not own the account credited by the 
transaction which is to be rejected, so it has no rights do reject it."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_BANK_UNMANAGED_EXCEPTION,
+    .hint = gettext_noop ("This error code is returned when no known exception 
types captured the exception."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_BANK_SOFT_EXCEPTION,
+    .hint = gettext_noop ("This error code is used for all those exceptions 
that do not really need a specific error code to return to the client. Used for 
example when a client is trying to register with a unavailable username."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_BANK_TRANSFER_REQUEST_UID_REUSED,
+    .hint = gettext_noop ("The request UID for a request to transfer funds has 
already been used, but with different details for the transfer."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_WITHDRAWAL_OPERATION_RESERVE_SELECTION_CONFLICT,
+    .hint = gettext_noop ("The withdrawal operation already has a reserve 
selected.  The current request conflicts with the existing selection."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_DUPLICATE_RESERVE_PUB_SUBJECT,
+    .hint = gettext_noop ("The wire transfer subject duplicates an existing 
reserve public key. But wire transfer subjects must be unique."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_ANCIENT_TRANSACTION_GONE,
+    .hint = gettext_noop ("The client requested a transaction that is so far 
in the past, that it has been forgotten by the bank."),
+    .http_code = MHD_HTTP_GONE
+  },
+
+  {
+    .ec = TALER_EC_BANK_ABORT_CONFIRM_CONFLICT,
+    .hint = gettext_noop ("The client attempted to abort a transaction that 
was already confirmed."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_CONFIRM_ABORT_CONFLICT,
+    .hint = gettext_noop ("The client attempted to confirm a transaction that 
was already aborted."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_REGISTER_CONFLICT,
+    .hint = gettext_noop ("The client attempted to register an account with 
the same name."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_POST_WITHDRAWAL_OPERATION_REQUIRED,
+    .hint = gettext_noop ("The client attempted to confirm a withdrawal 
operation before the wallet posted the required details."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_BANK_RESERVED_USERNAME_CONFLICT,
+    .hint = gettext_noop ("The client tried to register a new account under a 
reserved username (like 'admin' for example)."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_REGISTER_USERNAME_REUSE,
+    .hint = gettext_noop ("The client tried to register a new account with an 
username already in use."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_REGISTER_PAYTO_URI_REUSE,
+    .hint = gettext_noop ("The client tried to register a new account with a 
payto:// URI already in use."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_ACCOUNT_BALANCE_NOT_ZERO,
+    .hint = gettext_noop ("The client tried to delete an account with a non 
null balance."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_UNKNOWN_CREDITOR,
+    .hint = gettext_noop ("The client tried to create a transaction or an 
operation that credit an unknown account."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_UNKNOWN_DEBTOR,
+    .hint = gettext_noop ("The client tried to create a transaction or an 
operation that debit an unknown account."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_ACCOUNT_IS_EXCHANGE,
+    .hint = gettext_noop ("The client tried to perform an action prohibited 
for exchange accounts."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_ACCOUNT_IS_NOT_EXCHANGE,
+    .hint = gettext_noop ("The client tried to perform an action reserved for 
exchange accounts."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_BAD_CONVERSION,
+    .hint = gettext_noop ("Received currency conversion is wrong."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_MISSING_TAN_INFO,
+    .hint = gettext_noop ("The account referenced in this operation is missing 
tan info for the chosen channel."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_CONFIRM_INCOMPLETE,
+    .hint = gettext_noop ("The client attempted to confirm a transaction with 
incomplete info."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_TAN_RATE_LIMITED,
+    .hint = gettext_noop ("The request rate is too high. The server is 
refusing requests to guard against brute-force attacks."),
+    .http_code = MHD_HTTP_TOO_MANY_REQUESTS
+  },
+
+  {
+    .ec = TALER_EC_BANK_TAN_CHANNEL_NOT_SUPPORTED,
+    .hint = gettext_noop ("This TAN channel is not supported."),
+    .http_code = MHD_HTTP_NOT_IMPLEMENTED
+  },
+
+  {
+    .ec = TALER_EC_BANK_TAN_CHANNEL_SCRIPT_FAILED,
+    .hint = gettext_noop ("Failed to send TAN using the helper script. Either 
script is not found, or script timeout, or script terminated with a 
non-successful result."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_BANK_TAN_CHALLENGE_FAILED,
+    .hint = gettext_noop ("The client's response to the challenge was 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_BANK_NON_ADMIN_PATCH_LEGAL_NAME,
+    .hint = gettext_noop ("A non-admin user has tried to change their legal 
name."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_NON_ADMIN_PATCH_DEBT_LIMIT,
+    .hint = gettext_noop ("A non-admin user has tried to change their debt 
limit."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_NON_ADMIN_PATCH_MISSING_OLD_PASSWORD,
+    .hint = gettext_noop ("A non-admin user has tried to change their password 
whihout providing the current one."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_PATCH_BAD_OLD_PASSWORD,
+    .hint = gettext_noop ("Provided old password does not match current 
password."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_BANK_PATCH_ADMIN_EXCHANGE,
+    .hint = gettext_noop ("An admin user has tried to become an exchange."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_SYNC_ACCOUNT_UNKNOWN,
+    .hint = gettext_noop ("The sync service failed find the account in its 
database."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_SYNC_BAD_IF_NONE_MATCH,
+    .hint = gettext_noop ("The SHA-512 hash provided in the If-None-Match 
header is malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_SYNC_BAD_IF_MATCH,
+    .hint = gettext_noop ("The SHA-512 hash provided in the If-Match header is 
malformed or missing."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_SYNC_BAD_SYNC_SIGNATURE,
+    .hint = gettext_noop ("The signature provided in the \"Sync-Signature\" 
header is malformed or missing."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_SYNC_INVALID_SIGNATURE,
+    .hint = gettext_noop ("The signature provided in the \"Sync-Signature\" 
header does not match the account, old or new Etags."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_SYNC_MALFORMED_CONTENT_LENGTH,
+    .hint = gettext_noop ("The \"Content-length\" field for the upload is not 
a number."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_SYNC_EXCESSIVE_CONTENT_LENGTH,
+    .hint = gettext_noop ("The \"Content-length\" field for the upload is too 
big based on the server's terms of service."),
+    .http_code = MHD_HTTP_CONTENT_TOO_LARGE
+  },
+
+  {
+    .ec = TALER_EC_SYNC_OUT_OF_MEMORY_ON_CONTENT_LENGTH,
+    .hint = gettext_noop ("The server is out of memory to handle the upload. 
Trying again later may succeed."),
+    .http_code = MHD_HTTP_CONTENT_TOO_LARGE
+  },
+
+  {
+    .ec = TALER_EC_SYNC_INVALID_UPLOAD,
+    .hint = gettext_noop ("The uploaded data does not match the Etag."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_SYNC_PAYMENT_GENERIC_TIMEOUT,
+    .hint = gettext_noop ("HTTP server experienced a timeout while awaiting 
promised payment."),
+    .http_code = MHD_HTTP_REQUEST_TIMEOUT
+  },
+
+  {
+    .ec = TALER_EC_SYNC_PAYMENT_CREATE_BACKEND_ERROR,
+    .hint = gettext_noop ("Sync could not setup the payment request with its 
own backend."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_SYNC_PREVIOUS_BACKUP_UNKNOWN,
+    .hint = gettext_noop ("The sync service failed find the backup to be 
updated in its database."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_SYNC_MISSING_CONTENT_LENGTH,
+    .hint = gettext_noop ("The \"Content-length\" field for the upload is 
missing."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_SYNC_GENERIC_BACKEND_ERROR,
+    .hint = gettext_noop ("Sync had problems communicating with its payment 
backend."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_SYNC_GENERIC_BACKEND_TIMEOUT,
+    .hint = gettext_noop ("Sync experienced a timeout communicating with its 
payment backend."),
+    .http_code = MHD_HTTP_GATEWAY_TIMEOUT
+  },
+
+  {
+    .ec = TALER_EC_WALLET_EXCHANGE_PROTOCOL_VERSION_INCOMPATIBLE,
+    .hint = gettext_noop ("The wallet does not implement a version of the 
exchange protocol that is compatible with the protocol version of the 
exchange."),
+    .http_code = MHD_HTTP_NOT_IMPLEMENTED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_UNEXPECTED_EXCEPTION,
+    .hint = gettext_noop ("The wallet encountered an unexpected exception.  
This is likely a bug in the wallet implementation."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_WALLET_RECEIVED_MALFORMED_RESPONSE,
+    .hint = gettext_noop ("The wallet received a response from a server, but 
the response can't be parsed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_NETWORK_ERROR,
+    .hint = gettext_noop ("The wallet tried to make a network request, but it 
received no response."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_HTTP_REQUEST_THROTTLED,
+    .hint = gettext_noop ("The wallet tried to make a network request, but it 
was throttled."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_UNEXPECTED_REQUEST_ERROR,
+    .hint = gettext_noop ("The wallet made a request to a service, but 
received an error response it does not know how to handle."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_EXCHANGE_DENOMINATIONS_INSUFFICIENT,
+    .hint = gettext_noop ("The denominations offered by the exchange are 
insufficient.  Likely the exchange is badly configured or not maintained."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_CORE_API_OPERATION_UNKNOWN,
+    .hint = gettext_noop ("The wallet does not support the operation requested 
by a client."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_INVALID_TALER_PAY_URI,
+    .hint = gettext_noop ("The given taler://pay URI is invalid."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_EXCHANGE_COIN_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature on a coin by the exchange's 
denomination key is invalid after unblinding it."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_EXCHANGE_WITHDRAW_RESERVE_UNKNOWN_AT_EXCHANGE,
+    .hint = gettext_noop ("The exchange does not know about the reserve (yet), 
and thus withdrawal can't progress."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_WALLET_CORE_NOT_AVAILABLE,
+    .hint = gettext_noop ("The wallet core service is not available."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_WITHDRAWAL_OPERATION_ABORTED_BY_BANK,
+    .hint = gettext_noop ("The bank has aborted a withdrawal operation, and 
thus a withdrawal can't complete."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_HTTP_REQUEST_GENERIC_TIMEOUT,
+    .hint = gettext_noop ("An HTTP request made by the wallet timed out."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_ORDER_ALREADY_CLAIMED,
+    .hint = gettext_noop ("The order has already been claimed by another 
wallet."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_WITHDRAWAL_GROUP_INCOMPLETE,
+    .hint = gettext_noop ("A group of withdrawal operations (typically for the 
same reserve at the same exchange) has errors and will be tried again later."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_REWARD_COIN_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The signature on a coin by the exchange's 
denomination key (obtained through the merchant via a reward) is invalid after 
unblinding it."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_BANK_INTEGRATION_PROTOCOL_VERSION_INCOMPATIBLE,
+    .hint = gettext_noop ("The wallet does not implement a version of the bank 
integration API that is compatible with the version offered by the bank."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_CONTRACT_TERMS_BASE_URL_MISMATCH,
+    .hint = gettext_noop ("The wallet processed a taler://pay URI, but the 
merchant base URL in the downloaded contract terms does not match the merchant 
base URL derived from the URI."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_CONTRACT_TERMS_SIGNATURE_INVALID,
+    .hint = gettext_noop ("The merchant's signature on the contract terms is 
invalid."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_CONTRACT_TERMS_MALFORMED,
+    .hint = gettext_noop ("The contract terms given by the merchant are 
malformed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_PENDING_OPERATION_FAILED,
+    .hint = gettext_noop ("A pending operation failed, and thus the request 
can't be completed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_PAY_MERCHANT_SERVER_ERROR,
+    .hint = gettext_noop ("A payment was attempted, but the merchant had an 
internal server error (5xx)."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_CRYPTO_WORKER_ERROR,
+    .hint = gettext_noop ("The crypto worker failed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_CRYPTO_WORKER_BAD_REQUEST,
+    .hint = gettext_noop ("The crypto worker received a bad request."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_WITHDRAWAL_KYC_REQUIRED,
+    .hint = gettext_noop ("A KYC step is required before withdrawal can 
proceed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_DEPOSIT_GROUP_INSUFFICIENT_BALANCE,
+    .hint = gettext_noop ("The wallet does not have sufficient balance to 
create a deposit group."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_PEER_PUSH_PAYMENT_INSUFFICIENT_BALANCE,
+    .hint = gettext_noop ("The wallet does not have sufficient balance to 
create a peer push payment."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_PEER_PULL_PAYMENT_INSUFFICIENT_BALANCE,
+    .hint = gettext_noop ("The wallet does not have sufficient balance to pay 
for an invoice."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_REFRESH_GROUP_INCOMPLETE,
+    .hint = gettext_noop ("A group of refresh operations has errors and will 
be tried again later."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_EXCHANGE_BASE_URL_MISMATCH,
+    .hint = gettext_noop ("The exchange's self-reported base URL does not 
match the one that the wallet is using."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_WALLET_ORDER_ALREADY_PAID,
+    .hint = gettext_noop ("The order has already been paid by another 
wallet."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_GENERIC_BACKEND_TIMEOUT,
+    .hint = gettext_noop ("We encountered a timeout with our payment 
backend."),
+    .http_code = MHD_HTTP_GATEWAY_TIMEOUT
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_GENERIC_INVALID_PAYMENT_REQUEST,
+    .hint = gettext_noop ("The backend requested payment, but the request is 
malformed."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_GENERIC_BACKEND_ERROR,
+    .hint = gettext_noop ("The backend got an unexpected reply from the 
payment processor."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_GENERIC_MISSING_CONTENT_LENGTH,
+    .hint = gettext_noop ("The \"Content-length\" field for the upload is 
missing."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_GENERIC_MALFORMED_CONTENT_LENGTH,
+    .hint = gettext_noop ("The \"Content-length\" field for the upload is 
malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_GENERIC_ORDER_CREATE_BACKEND_ERROR,
+    .hint = gettext_noop ("The backend failed to setup an order with the 
payment processor."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_GENERIC_PAYMENT_CHECK_UNAUTHORIZED,
+    .hint = gettext_noop ("The backend was not authorized to check for payment 
with the payment processor."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_GENERIC_PAYMENT_CHECK_START_FAILED,
+    .hint = gettext_noop ("The backend could not check payment status with the 
payment processor."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_GENERIC_PROVIDER_UNREACHABLE,
+    .hint = gettext_noop ("The Anastasis provider could not be reached."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_PAYMENT_GENERIC_TIMEOUT,
+    .hint = gettext_noop ("HTTP server experienced a timeout while awaiting 
promised payment."),
+    .http_code = MHD_HTTP_REQUEST_TIMEOUT
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_UNKNOWN,
+    .hint = gettext_noop ("The key share is unknown to the provider."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_AUTHORIZATION_METHOD_NO_LONGER_SUPPORTED,
+    .hint = gettext_noop ("The authorization method used for the key share is 
no longer supported by the provider."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_CHALLENGE_RESPONSE_REQUIRED,
+    .hint = gettext_noop ("The client needs to respond to the challenge."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_CHALLENGE_FAILED,
+    .hint = gettext_noop ("The client's response to the challenge was 
invalid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_CHALLENGE_UNKNOWN,
+    .hint = gettext_noop ("The backend is not aware of having issued the 
provided challenge code. Either this is the wrong code, or it has expired."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_AUTHORIZATION_START_FAILED,
+    .hint = gettext_noop ("The backend failed to initiate the authorization 
process."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_KEY_SHARE_GONE,
+    .hint = gettext_noop ("The authorization succeeded, but the key share is 
no longer available."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_ORDER_DISAPPEARED,
+    .hint = gettext_noop ("The backend forgot the order we asked the client to 
pay for"),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_BACKEND_EXCHANGE_BAD,
+    .hint = gettext_noop ("The backend itself reported a bad exchange 
interaction."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_UNEXPECTED_PAYMENT_STATUS,
+    .hint = gettext_noop ("The backend reported a payment status we did not 
expect."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_PAYMENT_CREATE_BACKEND_ERROR,
+    .hint = gettext_noop ("The backend failed to setup the order for 
payment."),
+    .http_code = MHD_HTTP_BAD_GATEWAY
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_DECRYPTION_FAILED,
+    .hint = gettext_noop ("The decryption of the key share failed with the 
provided key."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_RATE_LIMITED,
+    .hint = gettext_noop ("The request rate is too high. The server is 
refusing requests to guard against brute-force attacks."),
+    .http_code = MHD_HTTP_TOO_MANY_REQUESTS
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_CHALLENGE_WRONG_METHOD,
+    .hint = gettext_noop ("A request to issue a challenge is not valid for 
this authentication method."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_UPLOAD_UUID_EXISTS,
+    .hint = gettext_noop ("The backend failed to store the key share because 
the UUID is already in use."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TRUTH_UPLOAD_METHOD_NOT_SUPPORTED,
+    .hint = gettext_noop ("The backend failed to store the key share because 
the authorization method is not supported."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_SMS_PHONE_INVALID,
+    .hint = gettext_noop ("The provided phone number is not an acceptable 
number."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_SMS_HELPER_EXEC_FAILED,
+    .hint = gettext_noop ("Failed to run the SMS transmission helper 
process."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_SMS_HELPER_COMMAND_FAILED,
+    .hint = gettext_noop ("Provider failed to send SMS. Helper terminated with 
a non-successful result."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_EMAIL_INVALID,
+    .hint = gettext_noop ("The provided email address is not an acceptable 
address."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_EMAIL_HELPER_EXEC_FAILED,
+    .hint = gettext_noop ("Failed to run the E-mail transmission helper 
process."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_EMAIL_HELPER_COMMAND_FAILED,
+    .hint = gettext_noop ("Provider failed to send E-mail. Helper terminated 
with a non-successful result."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_POST_INVALID,
+    .hint = gettext_noop ("The provided postal address is not an acceptable 
address."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_POST_HELPER_EXEC_FAILED,
+    .hint = gettext_noop ("Failed to run the mail transmission helper 
process."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_POST_HELPER_COMMAND_FAILED,
+    .hint = gettext_noop ("Provider failed to send mail. Helper terminated 
with a non-successful result."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_IBAN_INVALID,
+    .hint = gettext_noop ("The provided IBAN address is not an acceptable 
IBAN."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_IBAN_MISSING_TRANSFER,
+    .hint = gettext_noop ("The provider has not yet received the IBAN wire 
transfer authorizing the disclosure of the key share."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TOTP_KEY_MISSING,
+    .hint = gettext_noop ("The backend did not find a TOTP key in the data 
provided."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_TOTP_KEY_INVALID,
+    .hint = gettext_noop ("The key provided does not satisfy the format 
restrictions for an Anastasis TOTP key."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_POLICY_BAD_IF_NONE_MATCH,
+    .hint = gettext_noop ("The given if-none-match header is malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_POLICY_OUT_OF_MEMORY_ON_CONTENT_LENGTH,
+    .hint = gettext_noop ("The server is out of memory to handle the upload. 
Trying again later may succeed."),
+    .http_code = MHD_HTTP_CONTENT_TOO_LARGE
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_POLICY_BAD_SIGNATURE,
+    .hint = gettext_noop ("The signature provided in the 
\"Anastasis-Policy-Signature\" header is malformed or missing."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_POLICY_BAD_IF_MATCH,
+    .hint = gettext_noop ("The given if-match header is malformed."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_POLICY_INVALID_UPLOAD,
+    .hint = gettext_noop ("The uploaded data does not match the Etag."),
+    .http_code = MHD_HTTP_BAD_REQUEST
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_POLICY_NOT_FOUND,
+    .hint = gettext_noop ("The provider is unaware of the requested policy."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_ACTION_INVALID,
+    .hint = gettext_noop ("The given action is invalid for the current state 
of the reducer."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_STATE_INVALID,
+    .hint = gettext_noop ("The given state of the reducer is invalid."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_INPUT_INVALID,
+    .hint = gettext_noop ("The given input to the reducer is invalid."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_AUTHENTICATION_METHOD_NOT_SUPPORTED,
+    .hint = gettext_noop ("The selected authentication method does not work 
for the Anastasis provider."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_INPUT_INVALID_FOR_STATE,
+    .hint = gettext_noop ("The given input and action do not work for the 
current state."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_BACKEND_FAILURE,
+    .hint = gettext_noop ("We experienced an unexpected failure interacting 
with the backend."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_RESOURCE_MALFORMED,
+    .hint = gettext_noop ("The contents of a resource file did not match our 
expectations."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_RESOURCE_MISSING,
+    .hint = gettext_noop ("A required resource file is missing."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_INPUT_REGEX_FAILED,
+    .hint = gettext_noop ("An input did not match the regular expression."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_INPUT_VALIDATION_FAILED,
+    .hint = gettext_noop ("An input did not match the custom validation 
logic."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_POLICY_LOOKUP_FAILED,
+    .hint = gettext_noop ("Our attempts to download the recovery document 
failed with all providers. Most likely the personal information you entered 
differs from the information you provided during the backup process and you 
should go back to the previous step. Alternatively, if you used a backup 
provider that is unknown to this application, you should add that provider 
manually."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_BACKUP_PROVIDER_FAILED,
+    .hint = gettext_noop ("Anastasis provider reported a fatal failure."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_PROVIDER_CONFIG_FAILED,
+    .hint = gettext_noop ("Anastasis provider failed to respond to the 
configuration request."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_POLICY_MALFORMED,
+    .hint = gettext_noop ("The policy we downloaded is malformed. Must have 
been a client error while creating the backup."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_NETWORK_FAILED,
+    .hint = gettext_noop ("We failed to obtain the policy, likely due to a 
network issue."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_SECRET_MALFORMED,
+    .hint = gettext_noop ("The recovered secret did not match the required 
syntax."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_CHALLENGE_DATA_TOO_BIG,
+    .hint = gettext_noop ("The challenge data provided is too large for the 
available providers."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_SECRET_TOO_BIG,
+    .hint = gettext_noop ("The provided core secret is too large for some of 
the providers."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_PROVIDER_INVALID_CONFIG,
+    .hint = gettext_noop ("The provider returned in invalid configuration."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_INTERNAL_ERROR,
+    .hint = gettext_noop ("The reducer encountered an internal error, likely a 
bug that needs to be reported."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_ANASTASIS_REDUCER_PROVIDERS_ALREADY_SYNCED,
+    .hint = gettext_noop ("The reducer already synchronized with all 
providers."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_LIBEUFIN_NEXUS_GENERIC_ERROR,
+    .hint = gettext_noop ("A generic error happened in the LibEuFin nexus.  
See the enclose details JSON for more information."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_LIBEUFIN_NEXUS_UNCAUGHT_EXCEPTION,
+    .hint = gettext_noop ("An uncaught exception happened in the LibEuFin 
nexus service."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_LIBEUFIN_SANDBOX_GENERIC_ERROR,
+    .hint = gettext_noop ("A generic error happened in the LibEuFin sandbox.  
See the enclose details JSON for more information."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+  {
+    .ec = TALER_EC_LIBEUFIN_SANDBOX_UNCAUGHT_EXCEPTION,
+    .hint = gettext_noop ("An uncaught exception happened in the LibEuFin 
sandbox service."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_TALDIR_METHOD_NOT_SUPPORTED,
+    .hint = gettext_noop ("This validation method is not supported by the 
service."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_TALDIR_REGISTER_RATE_LIMITED,
+    .hint = gettext_noop ("Number of allowed attempts for initiating a 
challenge exceeded."),
+    .http_code = MHD_HTTP_TOO_MANY_REQUESTS
+  },
+
+  {
+    .ec = TALER_EC_CHALLENGER_GENERIC_CLIENT_UNKNOWN,
+    .hint = gettext_noop ("The client is unknown or unauthorized."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_CHALLENGER_GENERIC_CLIENT_FORBIDDEN_BAD_REDIRECT_URI,
+    .hint = gettext_noop ("The client is not authorized to use the given 
redirect URI."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_CHALLENGER_HELPER_EXEC_FAILED,
+    .hint = gettext_noop ("The service failed to execute its helper process to 
send the challenge."),
+    .http_code = MHD_HTTP_INTERNAL_SERVER_ERROR
+  },
+
+  {
+    .ec = TALER_EC_CHALLENGER_GRANT_UNKNOWN,
+    .hint = gettext_noop ("The grant is unknown to the service (it could also 
have expired)."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_CHALLENGER_CLIENT_FORBIDDEN_BAD_CODE,
+    .hint = gettext_noop ("The code given is not even well-formed."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_CHALLENGER_GENERIC_VALIDATION_UNKNOWN,
+    .hint = gettext_noop ("The service is not aware of the referenced 
validation process."),
+    .http_code = MHD_HTTP_NOT_FOUND
+  },
+
+  {
+    .ec = TALER_EC_CHALLENGER_CLIENT_FORBIDDEN_INVALID_CODE,
+    .hint = gettext_noop ("The code given is not valid."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_CHALLENGER_TOO_MANY_ATTEMPTS,
+    .hint = gettext_noop ("Too many attempts have been made, validation is 
temporarily disabled for this address."),
+    .http_code = MHD_HTTP_TOO_MANY_REQUESTS
+  },
+
+  {
+    .ec = TALER_EC_CHALLENGER_INVALID_PIN,
+    .hint = gettext_noop ("The PIN code provided is incorrect."),
+    .http_code = MHD_HTTP_FORBIDDEN
+  },
+
+  {
+    .ec = TALER_EC_CHALLENGER_MISSING_ADDRESS,
+    .hint = gettext_noop ("The token cannot be valid as no address was ever 
provided by the client."),
+    .http_code = MHD_HTTP_CONFLICT
+  },
+
+  {
+    .ec = TALER_EC_END,
+    .hint = gettext_noop ("End of error code range."),
+    .http_code = MHD_HTTP_UNINITIALIZED
+  },
+
+
+};
+
+
+/**
+ * The length of @e code_hint_pairs.
+ */
+static const unsigned int code_hint_pairs_length = 561;
+
+
+
+const char *
+TALER_ErrorCode_get_hint (enum TALER_ErrorCode ec)
+{
+  unsigned int lower = 0;
+  unsigned int upper = code_hint_pairs_length - 1;
+  unsigned int mid = upper / 2;
+  while (lower <= upper)
+  {
+    mid = (upper + lower) / 2;
+    if (code_hint_pairs[mid].ec < ec)
+    {
+      lower = mid + 1;
+    }
+    else if (code_hint_pairs[mid].ec > ec)
+    {
+      upper = mid - 1;
+    }
+    else
+    {
+      return code_hint_pairs[mid].hint;
+    }
+  }
+  return "<no hint found>";
+}
+
+
+unsigned int
+TALER_ErrorCode_get_http_status (enum TALER_ErrorCode ec)
+{
+  unsigned int lower = 0;
+  unsigned int upper = code_hint_pairs_length - 1;
+  unsigned int mid = upper / 2;
+  while (lower <= upper)
+  {
+    mid = (upper + lower) / 2;
+    if (code_hint_pairs[mid].ec < ec)
+    {
+      lower = mid + 1;
+    }
+    else if (code_hint_pairs[mid].ec > ec)
+    {
+      upper = mid - 1;
+    }
+    else
+    {
+      return code_hint_pairs[mid].http_code;
+    }
+  }
+  return UINT_MAX;
+}
+
+
+unsigned int
+TALER_ErrorCode_get_http_status_safe (enum TALER_ErrorCode ec)
+{
+  unsigned int hc;
+
+  hc = TALER_ErrorCode_get_http_status (ec);
+  if ( (0 == hc) ||
+       (UINT_MAX == hc) )
+    return MHD_HTTP_INTERNAL_SERVER_ERROR;
+  return hc;
+}

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