refs #5122 Hotfix: Basic implementation for payment confirmation

modules/client/back/methods/tpv-transaction/confirm.js

@@ -0,0 +1,47 @@
+
+module.exports = Self => {
+    Self.remoteMethod('confirm', {
+        description: 'Confirms electronic payment transaction',
+        accessType: 'WRITE',
+        accepts: [
+            {
+                arg: 'Ds_SignatureVersion',
+                type: 'string',
+                required: true,
+            }, {
+                arg: 'Ds_MerchantParameters',
+                type: 'string',
+                required: true,
+            }, {
+                arg: 'Ds_Signature',
+                type: 'string',
+                required: true,
+            }
+        ],
+        returns: {
+            type: 'Boolean',
+            root: true
+        },
+        http: {
+            path: `/confirm`,
+            verb: 'POST'
+        }
+    });
+
+    Self.confirm = async(signatureVersion, merchantParameters, signature) => {
+        const buffer = Buffer.from(merchantParameters, 'base64');
+        const params = JSON.parse(buffer.toString());
+        console.debug('Payment confirmation received:', params);
+        await Self.rawSql(
+            'CALL hedera.tpvTransaction_confirm(?, ?, ?, ?, ?, ?)', [
+                params['Ds_Amount'],
+                params['Ds_Order'],
+                params['Ds_MerchantCode'],
+                params['Ds_Currency'],
+                params['Ds_Response'],
+                params['Ds_ErrorCode']
+            ]
+        );
+        return true;
+    };
+};

modules/client/back/models/tpv-transaction.js

@@ -0,0 +1,3 @@
+module.exports = Self => {
+    require('../methods/tpv-transaction/confirm')(Self);
+};