-more API clean up

1 files changed, 169 insertions, 151 deletions

diff --git a/src/include/taler_merchant_service.h b/src/include/taler_merchant_service.h
index 874a8a8c..12b8ce95 100644
--- a/src/include/taler_merchant_service.h
+++ b/src/include/taler_merchant_service.h
@@ -369,17 +369,18 @@ struct TALER_MERCHANT_ConfigGetHandle;
  * @return the config check handle; NULL upon error
  */
 struct TALER_MERCHANT_ConfigGetHandle *
-TALER_MERCHANT_config_get (struct GNUNET_CURL_Context *ctx,
-                           const char *backend_url,
-                           TALER_MERCHANT_ConfigCallback config_cb,
-                           void *config_cb_cls);
+TALER_MERCHANT_config_get (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  TALER_MERCHANT_ConfigCallback config_cb,
+  void *config_cb_cls);
 
 
 /**
  * Cancel /config request.  Must not be called by clients after
  * the callback was invoked.
  *
- * @param vgh request to cancel.
+ * @param[in] vgh request to cancel.
  */
 void
 TALER_MERCHANT_config_get_cancel (struct TALER_MERCHANT_ConfigGetHandle *vgh);
@@ -486,10 +487,11 @@ typedef void
  * @return the instances handle; NULL upon error
  */
 struct TALER_MERCHANT_InstancesGetHandle *
-TALER_MERCHANT_instances_get (struct GNUNET_CURL_Context *ctx,
-                              const char *backend_url,
-                              TALER_MERCHANT_InstancesGetCallback instances_cb,
-                              void *instances_cb_cls);
+TALER_MERCHANT_instances_get (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  TALER_MERCHANT_InstancesGetCallback instances_cb,
+  void *instances_cb_cls);
 
 
 /**
@@ -768,7 +770,7 @@ TALER_MERCHANT_instance_patch (
   const char *backend_url,
   const char *instance_id,
   unsigned int accounts_length,
-  const struct TALER_MERCHANT_AccountConfig accounts[],
+  const struct TALER_MERCHANT_AccountConfig accounts[static accounts_length],
   const char *name,
   enum TALER_KYCLOGIC_KycUserType ut,
   const json_t *address,
@@ -1005,11 +1007,12 @@ typedef void
  * @return the instances handle; NULL upon error
  */
 struct TALER_MERCHANT_InstanceGetHandle *
-TALER_MERCHANT_instance_get (struct GNUNET_CURL_Context *ctx,
-                             const char *backend_url,
-                             const char *instance_id,
-                             TALER_MERCHANT_InstanceGetCallback cb,
-                             void *cb_cls);
+TALER_MERCHANT_instance_get (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  const char *instance_id,
+  TALER_MERCHANT_InstanceGetCallback cb,
+  void *cb_cls);
 
 
 /**
@@ -1697,12 +1700,13 @@ typedef void
  * @return a handle for this request, NULL on error
  */
 struct TALER_MERCHANT_PostOrdersHandle *
-TALER_MERCHANT_orders_post (struct GNUNET_CURL_Context *ctx,
-                            const char *backend_url,
-                            const json_t *order,
-                            struct GNUNET_TIME_Relative refund_delay,
-                            TALER_MERCHANT_PostOrdersCallback cb,
-                            void *cb_cls);
+TALER_MERCHANT_orders_post (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  const json_t *order,
+  struct GNUNET_TIME_Relative refund_delay,
+  TALER_MERCHANT_PostOrdersCallback cb,
+  void *cb_cls);
 
 /**
  * Information needed per product for constructing orders from
@@ -1752,7 +1756,7 @@ TALER_MERCHANT_orders_post2 (
   unsigned int inventory_products_length,
   const struct TALER_MERCHANT_InventoryProduct inventory_products[],
   unsigned int uuids_length,
-  const char *uuids[],
+  const char *uuids[static uuids_length],
   bool create_token,
   TALER_MERCHANT_PostOrdersCallback cb,
   void *cb_cls);
@@ -1762,7 +1766,7 @@ TALER_MERCHANT_orders_post2 (
  * Cancel a POST /orders request.  This function cannot be used
  * on a request handle if a response is already served for it.
  *
- * @param po the proposal operation request handle
+ * @param[in] po the proposal operation request handle
  */
 void
 TALER_MERCHANT_orders_post_cancel (
@@ -1920,7 +1924,7 @@ TALER_MERCHANT_orders_get2 (
 /**
  * Cancel GET /orders operation.
  *
- * @param pgh operation to cancel
+ * @param[in] pgh operation to cancel
  */
 void
 TALER_MERCHANT_orders_get_cancel (
@@ -2049,7 +2053,7 @@ TALER_MERCHANT_wallet_order_get (
 /**
  * Cancel a GET /orders/$ID request.
  *
- * @param owgh handle to the request to be canceled
+ * @param[in] owgh handle to the request to be canceled
  */
 void
 TALER_MERCHANT_wallet_order_get_cancel (
@@ -2395,7 +2399,7 @@ TALER_MERCHANT_merchant_order_get (struct GNUNET_CURL_Context *ctx,
 /**
  * Cancel a GET /private/orders/$ID request.
  *
- * @param omgh handle to the request to be canceled
+ * @param[in] omgh handle to the request to be canceled
  */
 void
 TALER_MERCHANT_merchant_order_get_cancel (
@@ -2445,7 +2449,7 @@ TALER_MERCHANT_order_delete (
 /**
  * Cancel DELETE /orders/$ID operation.
  *
- * @param odh operation to cancel
+ * @param[in] odh operation to cancel
  */
 void
 TALER_MERCHANT_order_delete_cancel (
@@ -2525,19 +2529,20 @@ typedef void
  * @return handle for this handle, NULL upon errors
  */
 struct TALER_MERCHANT_OrderClaimHandle *
-TALER_MERCHANT_order_claim (struct GNUNET_CURL_Context *ctx,
-                            const char *backend_url,
-                            const char *order_id,
-                            const struct GNUNET_CRYPTO_EddsaPublicKey *nonce,
-                            const struct TALER_ClaimTokenP *claim_token,
-                            TALER_MERCHANT_OrderClaimCallback cb,
-                            void *cb_cls);
+TALER_MERCHANT_order_claim (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  const char *order_id,
+  const struct GNUNET_CRYPTO_EddsaPublicKey *nonce,
+  const struct TALER_ClaimTokenP *claim_token,
+  TALER_MERCHANT_OrderClaimCallback cb,
+  void *cb_cls);
 
 
 /**
  * Cancel a POST /order/$ID/claim request.
  *
- * @param och handle to the request to be canceled
+ * @param[in] och handle to the request to be canceled
  */
 void
 TALER_MERCHANT_order_claim_cancel (struct TALER_MERCHANT_OrderClaimHandle *och);
@@ -2683,7 +2688,7 @@ TALER_MERCHANT_order_pay_frontend (
   const char *order_id,
   const char *session_id,
   unsigned int num_coins,
-  const struct TALER_MERCHANT_PaidCoin coins[],
+  const struct TALER_MERCHANT_PaidCoin coins[static num_coins],
   TALER_MERCHANT_OrderPayCallback pay_cb,
   void *pay_cb_cls);
 
@@ -2762,23 +2767,24 @@ struct TALER_MERCHANT_PayCoin
  * @return a handle for this request
  */
 struct TALER_MERCHANT_OrderPayHandle *
-TALER_MERCHANT_order_pay (struct GNUNET_CURL_Context *ctx,
-                          const char *merchant_url,
-                          const char *session_id,
-                          const struct TALER_PrivateContractHashP *h_contract,
-                          const struct TALER_Amount *amount,
-                          const struct TALER_Amount *max_fee,
-                          const struct TALER_MerchantPublicKeyP *merchant_pub,
-                          const struct TALER_MerchantSignatureP *merchant_sig,
-                          struct GNUNET_TIME_Timestamp timestamp,
-                          struct GNUNET_TIME_Timestamp refund_deadline,
-                          struct GNUNET_TIME_Timestamp pay_deadline,
-                          const struct TALER_MerchantWireHashP *h_wire,
-                          const char *order_id,
-                          unsigned int num_coins,
-                          const struct TALER_MERCHANT_PayCoin coins[],
-                          TALER_MERCHANT_OrderPayCallback pay_cb,
-                          void *pay_cb_cls);
+TALER_MERCHANT_order_pay (
+  struct GNUNET_CURL_Context *ctx,
+  const char *merchant_url,
+  const char *session_id,
+  const struct TALER_PrivateContractHashP *h_contract,
+  const struct TALER_Amount *amount,
+  const struct TALER_Amount *max_fee,
+  const struct TALER_MerchantPublicKeyP *merchant_pub,
+  const struct TALER_MerchantSignatureP *merchant_sig,
+  struct GNUNET_TIME_Timestamp timestamp,
+  struct GNUNET_TIME_Timestamp refund_deadline,
+  struct GNUNET_TIME_Timestamp pay_deadline,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const char *order_id,
+  unsigned int num_coins,
+  const struct TALER_MERCHANT_PayCoin coins[static num_coins],
+  TALER_MERCHANT_OrderPayCallback pay_cb,
+  void *pay_cb_cls);
 
 
 /**
@@ -3000,15 +3006,16 @@ struct TALER_MERCHANT_AbortCoin
  * @return a handle for this request
  */
 struct TALER_MERCHANT_OrderAbortHandle *
-TALER_MERCHANT_order_abort (struct GNUNET_CURL_Context *ctx,
-                            const char *merchant_url,
-                            const char *order_id,
-                            const struct TALER_MerchantPublicKeyP *merchant_pub,
-                            const struct TALER_PrivateContractHashP *h_contract,
-                            unsigned int num_coins,
-                            const struct TALER_MERCHANT_AbortCoin coins[],
-                            TALER_MERCHANT_AbortCallback cb,
-                            void *cb_cls);
+TALER_MERCHANT_order_abort (
+  struct GNUNET_CURL_Context *ctx,
+  const char *merchant_url,
+  const char *order_id,
+  const struct TALER_MerchantPublicKeyP *merchant_pub,
+  const struct TALER_PrivateContractHashP *h_contract,
+  unsigned int num_coins,
+  const struct TALER_MERCHANT_AbortCoin coins[static num_coins],
+  TALER_MERCHANT_AbortCallback cb,
+  void *cb_cls);
 
 
 /**
@@ -3055,13 +3062,14 @@ typedef void
  * @return a handle for this request.
  */
 struct TALER_MERCHANT_OrderForgetHandle *
-TALER_MERCHANT_order_forget (struct GNUNET_CURL_Context *ctx,
-                             const char *merchant_url,
-                             const char *order_id,
-                             unsigned int fields_length,
-                             const char *fields[],
-                             TALER_MERCHANT_ForgetCallback cb,
-                             void *cb_cls);
+TALER_MERCHANT_order_forget (
+  struct GNUNET_CURL_Context *ctx,
+  const char *merchant_url,
+  const char *order_id,
+  unsigned int fields_length,
+  const char *fields[static fields_length],
+  TALER_MERCHANT_ForgetCallback cb,
+  void *cb_cls);
 
 
 /**
@@ -3069,11 +3077,11 @@ TALER_MERCHANT_order_forget (struct GNUNET_CURL_Context *ctx,
  * like this, you have no assurance that the request has not yet been
  * forwarded to the merchant.
  *
- * @param ofh the forget request handle
+ * @param[in] ofh the forget request handle
  */
 void
-TALER_MERCHANT_order_forget_cancel (struct
-                                    TALER_MERCHANT_OrderForgetHandle *ofh);
+TALER_MERCHANT_order_forget_cancel (
+  struct TALER_MERCHANT_OrderForgetHandle *ofh);
 
 
 /**
@@ -3142,13 +3150,14 @@ typedef void
  * @param cb_cls closure for cb
  */
 struct TALER_MERCHANT_OrderRefundHandle *
-TALER_MERCHANT_post_order_refund (struct GNUNET_CURL_Context *ctx,
-                                  const char *backend_url,
-                                  const char *order_id,
-                                  const struct TALER_Amount *refund,
-                                  const char *reason,
-                                  TALER_MERCHANT_RefundCallback cb,
-                                  void *cb_cls);
+TALER_MERCHANT_post_order_refund (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  const char *order_id,
+  const struct TALER_Amount *refund,
+  const char *reason,
+  TALER_MERCHANT_RefundCallback cb,
+  void *cb_cls);
 
 /**
  * Cancel a POST /refund request.
@@ -4093,13 +4102,14 @@ TALER_MERCHANT_tip_authorize2 (
  * @return handle for this operation, NULL upon errors
  */
 struct TALER_MERCHANT_TipAuthorizeHandle *
-TALER_MERCHANT_tip_authorize (struct GNUNET_CURL_Context *ctx,
-                              const char *backend_url,
-                              const char *next_url,
-                              const struct TALER_Amount *amount,
-                              const char *justification,
-                              TALER_MERCHANT_TipAuthorizeCallback authorize_cb,
-                              void *authorize_cb_cls);
+TALER_MERCHANT_tip_authorize (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  const char *next_url,
+  const struct TALER_Amount *amount,
+  const char *justification,
+  TALER_MERCHANT_TipAuthorizeCallback authorize_cb,
+  void *authorize_cb_cls);
 
 
 /**
@@ -4162,17 +4172,18 @@ TALER_MERCHANT_reserve_delete (
  * @return handle for this operation, NULL upon errors
  */
 struct TALER_MERCHANT_ReserveDeleteHandle *
-TALER_MERCHANT_reserve_purge (struct GNUNET_CURL_Context *ctx,
-                              const char *backend_url,
-                              const struct TALER_ReservePublicKeyP *reserve_pub,
-                              TALER_MERCHANT_ReserveDeleteCallback cb,
-                              void *cb_cls);
+TALER_MERCHANT_reserve_purge (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  const struct TALER_ReservePublicKeyP *reserve_pub,
+  TALER_MERCHANT_ReserveDeleteCallback cb,
+  void *cb_cls);
 
 
 /**
  * Cancel a DELETE (or purge) /reserve/$RESERVE_ID request.
  *
- * @param rdh handle to the request to be canceled
+ * @param[in] rdh handle to the request to be canceled
  */
 void
 TALER_MERCHANT_reserve_delete_cancel (
@@ -4258,17 +4269,18 @@ typedef void
  * @return handle for this operation, NULL upon errors
  */
 struct TALER_MERCHANT_TipWalletGetHandle *
-TALER_MERCHANT_wallet_tip_get (struct GNUNET_CURL_Context *ctx,
-                               const char *backend_url,
-                               const struct TALER_TipIdentifierP *tip_id,
-                               TALER_MERCHANT_TipWalletGetCallback cb,
-                               void *cb_cls);
+TALER_MERCHANT_wallet_tip_get (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  const struct TALER_TipIdentifierP *tip_id,
+  TALER_MERCHANT_TipWalletGetCallback cb,
+  void *cb_cls);
 
 
 /**
  * Cancel a GET /tips/$TIP_ID request.
  *
- * @param tgh handle to the request to be canceled
+ * @param[in] tgh handle to the request to be canceled
  */
 void
 TALER_MERCHANT_wallet_tip_get_cancel (
@@ -4393,20 +4405,21 @@ typedef void
  * @return handle for this operation, NULL upon errors
  */
 struct TALER_MERCHANT_TipMerchantGetHandle *
-TALER_MERCHANT_merchant_tip_get (struct GNUNET_CURL_Context *ctx,
-                                 const char *backend_url,
-                                 const struct TALER_TipIdentifierP *tip_id,
-                                 const struct TALER_Amount *min_pick_up,
-                                 struct GNUNET_TIME_Relative lp_timeout,
-                                 bool pickups,
-                                 TALER_MERCHANT_TipMerchantGetCallback cb,
-                                 void *cb_cls);
+TALER_MERCHANT_merchant_tip_get (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  const struct TALER_TipIdentifierP *tip_id,
+  const struct TALER_Amount *min_pick_up,
+  struct GNUNET_TIME_Relative lp_timeout,
+  bool pickups,
+  TALER_MERCHANT_TipMerchantGetCallback cb,
+  void *cb_cls);
 
 
 /**
  * Cancel a GET /private/tips/$TIP_ID request.
  *
- * @param tgh handle to the request to be canceled
+ * @param[in] tgh handle to the request to be canceled
  */
 void
 TALER_MERCHANT_merchant_tip_get_cancel (
@@ -4501,10 +4514,11 @@ typedef void
  * @return handle for this operation, NULL upon errors
  */
 struct TALER_MERCHANT_TipsGetHandle *
-TALER_MERCHANT_tips_get (struct GNUNET_CURL_Context *ctx,
-                         const char *backend_url,
-                         TALER_MERCHANT_TipsGetCallback cb,
-                         void *cb_cls);
+TALER_MERCHANT_tips_get (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  TALER_MERCHANT_TipsGetCallback cb,
+  void *cb_cls);
 
 
 /**
@@ -4520,13 +4534,14 @@ TALER_MERCHANT_tips_get (struct GNUNET_CURL_Context *ctx,
  * @return handle for this operation, NULL upon errors
  */
 struct TALER_MERCHANT_TipsGetHandle *
-TALER_MERCHANT_tips_get2 (struct GNUNET_CURL_Context *ctx,
-                          const char *backend_url,
-                          enum TALER_EXCHANGE_YesNoAll expired,
-                          int64_t limit,
-                          uint64_t offset,
-                          TALER_MERCHANT_TipsGetCallback cb,
-                          void *cb_cls);
+TALER_MERCHANT_tips_get2 (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  enum TALER_EXCHANGE_YesNoAll expired,
+  int64_t limit,
+  uint64_t offset,
+  TALER_MERCHANT_TipsGetCallback cb,
+  void *cb_cls);
 
 
 /**
@@ -4633,7 +4648,7 @@ TALER_MERCHANT_tip_pickup (
   const char *backend_url,
   const struct TALER_TipIdentifierP *tip_id,
   unsigned int num_planchets,
-  const struct TALER_MERCHANT_PlanchetData planchets[],
+  const struct TALER_MERCHANT_PlanchetData planchets[static num_planchets],
   TALER_MERCHANT_TipPickupCallback pickup_cb,
   void *pickup_cb_cls);
 
@@ -4718,19 +4733,20 @@ typedef void
  * @return handle for this operation, NULL upon errors
  */
 struct TALER_MERCHANT_TipPickup2Handle *
-TALER_MERCHANT_tip_pickup2 (struct GNUNET_CURL_Context *ctx,
-                            const char *backend_url,
-                            const struct TALER_TipIdentifierP *tip_id,
-                            unsigned int num_planchets,
-                            const struct TALER_PlanchetDetail planchets[],
-                            TALER_MERCHANT_TipPickup2Callback pickup_cb,
-                            void *pickup_cb_cls);
+TALER_MERCHANT_tip_pickup2 (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  const struct TALER_TipIdentifierP *tip_id,
+  unsigned int num_planchets,
+  const struct TALER_PlanchetDetail planchets[static num_planchets],
+  TALER_MERCHANT_TipPickup2Callback pickup_cb,
+  void *pickup_cb_cls);
 
 
 /**
  * Cancel a pending /tip-pickup request.
  *
- * @param tp handle from the operation to cancel
+ * @param[in] tp handle from the operation to cancel
  */
 void
 TALER_MERCHANT_tip_pickup2_cancel (
@@ -4876,13 +4892,14 @@ typedef void
  * @return handle for this operation, NULL upon errors
  */
 struct TALER_MERCHANT_KycGetHandle *
-TALER_MERCHANT_kyc_get (struct GNUNET_CURL_Context *ctx,
-                        const char *backend_url,
-                        const struct TALER_MerchantWireHashP *h_wire,
-                        const char *exchange_url,
-                        struct GNUNET_TIME_Relative timeout,
-                        TALER_MERCHANT_KycGetCallback cb,
-                        void *cb_cls);
+TALER_MERCHANT_kyc_get (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const char *exchange_url,
+  struct GNUNET_TIME_Relative timeout,
+  TALER_MERCHANT_KycGetCallback cb,
+  void *cb_cls);
 
 
 /**
@@ -4900,14 +4917,15 @@ TALER_MERCHANT_kyc_get (struct GNUNET_CURL_Context *ctx,
  * @return handle for this operation, NULL upon errors
  */
 struct TALER_MERCHANT_KycGetHandle *
-TALER_MERCHANT_management_kyc_get (struct GNUNET_CURL_Context *ctx,
-                                   const char *backend_url,
-                                   const char *instance_id,
-                                   const struct TALER_MerchantWireHashP *h_wire,
-                                   const char *exchange_url,
-                                   struct GNUNET_TIME_Relative timeout,
-                                   TALER_MERCHANT_KycGetCallback cb,
-                                   void *cb_cls);
+TALER_MERCHANT_management_kyc_get (
+  struct GNUNET_CURL_Context *ctx,
+  const char *backend_url,
+  const char *instance_id,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const char *exchange_url,
+  struct GNUNET_TIME_Relative timeout,
+  TALER_MERCHANT_KycGetCallback cb,
+  void *cb_cls);
 
 
 /**
@@ -5167,7 +5185,7 @@ TALER_MERCHANT_templates_post (
 /**
  * Cancel POST /templates operation.
  *
- * @param tph operation to cancel
+ * @param[in] tph operation to cancel
  */
 void
 TALER_MERCHANT_templates_post_cancel (
@@ -5224,7 +5242,7 @@ TALER_MERCHANT_template_patch (
 /**
  * Cancel PATCH /template operation.
  *
- * @param tph operation to cancel
+ * @param[in] tph operation to cancel
  */
 void
 TALER_MERCHANT_template_patch_cancel (
@@ -5271,7 +5289,7 @@ TALER_MERCHANT_template_delete (
 /**
  * Cancel DELETE /template/$ID operation.
  *
- * @param tdh operation to cancel
+ * @param[in] tdh operation to cancel
  */
 void
 TALER_MERCHANT_template_delete_cancel (
@@ -5304,7 +5322,7 @@ TALER_MERCHANT_using_templates_post (
 /**
  * Cancel POST /using-templates operation.
  *
- * @param utph operation to cancel
+ * @param[in] utph operation to cancel
  */
 void
 TALER_MERCHANT_using_templates_post_cancel (
@@ -5401,7 +5419,7 @@ TALER_MERCHANT_webhooks_get (
 /**
  * Cancel GET /webhooks operation.
  *
- * @param tgh operation to cancel
+ * @param[in] tgh operation to cancel
  */
 void
 TALER_MERCHANT_webhooks_get_cancel (
@@ -5462,7 +5480,7 @@ TALER_MERCHANT_webhook_get (
 /**
  * Cancel GET /webhooks/$ID operation.
  *
- * @param tgh operation to cancel
+ * @param[in] tgh operation to cancel
  */
 void
 TALER_MERCHANT_webhook_get_cancel (
@@ -5519,7 +5537,7 @@ TALER_MERCHANT_webhooks_post (
 /**
  * Cancel POST /webhooks operation.
  *
- * @param wph operation to cancel
+ * @param[in] wph operation to cancel
  */
 void
 TALER_MERCHANT_webhooks_post_cancel (
@@ -5578,7 +5596,7 @@ TALER_MERCHANT_webhook_patch (
 /**
  * Cancel PATCH /webhook operation.
  *
- * @param wph operation to cancel
+ * @param[in] wph operation to cancel
  */
 void
 TALER_MERCHANT_webhook_patch_cancel (
@@ -5625,7 +5643,7 @@ TALER_MERCHANT_webhook_delete (
 /**
  * Cancel DELETE /webhook/$ID operation.
  *
- * @param wdh operation to cancel
+ * @param[in] wdh operation to cancel
  */
 void
 TALER_MERCHANT_webhook_delete_cancel (