BE-790 Change default encode of value in TX details

README-CONFIG.md

@@ -293,3 +293,14 @@ This document will describe about the detail of each configuration:
  ```shell
  docker-compose down -v
  ```
+
+## Value encoding in Transaction Details
+
+* By default, the value of each read/write set is encoded by UTF-8. If you want to change the type of encoding, you can configure with the following property in the connection profile. Please refer to [Buffer | Node.js v14.7.0 Documentation](https://nodejs.org/docs/latest/api/buffer.html#buffer_buffers_and_character_encodings) for the supported encoding.
+
+ ```json
+ "client": {
+ "rwSetEncoding": "hex"
+ }
+ ```
+

app/platform/fabric/FabricConfig.js

@@ -354,6 +354,10 @@ class FabricConfig {
  }
  return peers;
  }
+
+ getRWSetEncoding() {
+ return this.config.client.rwSetEncoding || 'utf8';
+ }
 }
 
 module.exports = FabricConfig;

app/platform/fabric/sync/SyncService.js

@@ -526,6 +526,11 @@ class SyncServices {
  let chaincodeID;
  let status;
  let mspId = [];
+ this.convertFormatOfValue(
+ 'value',
+ client.fabricGateway.fabricConfig.getRWSetEncoding(),
+ txObj
+ );
  if (txid && txid !== '') {
  const validation_codes =
  block.metadata.metadata[block.metadata.metadata.length - 1];
@@ -697,6 +702,23 @@ class SyncServices {
  blocksInProcess.splice(index, 1);
  }
 
+ convertFormatOfValue(prop, encoding, obj) {
+ if (Array.isArray(obj)) {
+ for (let i = 0; i < obj.length; i++) {
+ this.convertFormatOfValue(prop, encoding, obj[i]);
+ }
+ } else if (!Buffer.isBuffer(obj) && typeof obj === 'object') {
+ // Each element of array of Buffer is excluded by the 1st condition
+ Object.keys(obj).forEach(key => {
+ if (key === prop && Buffer.isBuffer(obj[key])) {
+ obj[key] = obj[key].toString(encoding);
+ } else if (obj[key]) {
+ this.convertFormatOfValue(prop, encoding, obj[key]);
+ }
+ });
+ }
+ }
+
  /**
  *
  *