Display correct chaincode metadata fix in the backend

Signed-off-by: Udhayakumari <[email protected]>

Author: Udhayakumari

app/platform/fabric/Proxy.ts

@@ -603,13 +603,13 @@ export class Proxy {
 	 * @returns
 	 * @memberof Proxy
 	 */
-	async getContractMetadata(network_id, contract_name) {
+	async getContractMetadata(network_id, contract_name, channel_genesis_hash) {
 		const client = this.platform.getClient(network_id);
-		const channel_name = Object.keys(client.fabricGateway.config.channels)[0];
+		const channel_name =  client.getChannelNameByHash(channel_genesis_hash);
 		let metadata;
 		try {
-			metadata = await client.fabricGateway.queryContractMetadata(channel_name, contract_name);
-		} catch (e) {
+			metadata = await client.fabricGateway.queryContractMetadata(channel_name, contract_name, channel_genesis_hash);
+			} catch (e) {
 			logger.debug('getContractMetadata >> ', e);
 		} if (metadata) {
 			return metadata;

app/rest/platformroutes.ts

@@ -260,10 +260,11 @@ export async function platformroutes(
 	 * GET /metadata
 	 * curl -i 'http://<host>:<port>/metadata/<chaincode>'
 	 */
-	router.get('/metadata/:chaincode', (req, res) => {
+	router.get('/metadata/:channel_genesis_hash/:chaincode', (req, res) => {
 		const chaincode = req.params.chaincode;
-		if (chaincode) {
-			proxy.getContractMetadata(req.network, chaincode).then((data: any) => {
+		const channel_genesis_hash = req.params.channel_genesis_hash;
+		if (chaincode && channel_genesis_hash) {
+			proxy.getContractMetadata(req.network, chaincode, channel_genesis_hash).then((data: any) => {
 				res.send({ status: 200, data: data });
 			});
 		} else {