updated test-01-simple to test gateway client

.gitignore

@@ -7,4 +7,5 @@ node_modules
 .idea
 .vscode
 samples/invalid-fablo-config.json
-.DS_Store
+.DS_Store
+.env

e2e-network/docker/test-01-simple.sh

@@ -8,6 +8,9 @@ FABLO_HOME="$TEST_TMP/../../.."
 
 export FABLO_HOME
 
+GATEWAY_CLIENT_DIR="$FABLO_HOME/samples/gateway/node"
+GATEWAY_CLIENT_OUTPUT_FILE="$TEST_LOGS/gateway_client.log"
+
 networkUp() {
   "$FABLO_HOME/fablo-build.sh"
   (cd "$TEST_TMP" && "$FABLO_HOME/fablo.sh" init node)
@@ -66,6 +69,44 @@ expectInvoke "peer1.org1.example.com" "my-channel1" "chaincode1" \
   '{"Args":["KVContract:get", "name"]}' \
   '{\"success\":\"Willy Wonka\"}'
 
+# Test Node.js Gateway CLI client
+echo "Testing Node.js Gateway client..."
+
+echo "Installing gateway client dependencies..."
+(cd "$GATEWAY_CLIENT_DIR" && npm install --silent --no-progress)
+
+echo "Running Node.js Gateway client and checking output..."
+(
+  cd "$GATEWAY_CLIENT_DIR" &&
+    export \
+           CHANNEL_NAME="my-channel1" \
+           CONTRACT_NAME="chaincode1" \
+           MSP_ID="Org1MSP" \
+           PEER_ORG_NAME="peer0.org1.example.com" \
+           PEER_GATEWAY_URL="localhost:7041" \
+           TLS_ROOT_CERT="$TEST_TMP/fablo-target/fabric-config/crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt" \
+           CREDENTIALS="$TEST_TMP/fablo-target/fabric-config/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/signcerts/[email protected]" \
+           PRIVATE_KEY_PEM="$TEST_TMP/fablo-target/fabric-config/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/keystore/priv-key.pem" &&
+  node server.js > "$GATEWAY_CLIENT_OUTPUT_FILE" 2>&1
+)
+GATEWAY_EXIT_CODE=$?
+
+if [ $GATEWAY_EXIT_CODE -ne 0 ]; then
+  echo "❌ failed: Node.js Gateway client script failed with exit code $GATEWAY_EXIT_CODE."
+  cat "$GATEWAY_CLIENT_OUTPUT_FILE"
+  exit 1
+fi
+
+if grep -qF 'Put result: {"success":"OK"}' "$GATEWAY_CLIENT_OUTPUT_FILE"; then
+  echo "✅ ok: Node.js Gateway client test passed!"
+else
+  echo "❌ failed: Node.js Gateway client failed."
+  cat "$GATEWAY_CLIENT_OUTPUT_FILE"
+  exit 1
+fi
+
+echo "Node.js Gateway client test complete"
+
 # Verify channel query scripts
 (cd "$TEST_TMP" && "$FABLO_HOME/fablo.sh" channel fetch newest my-channel1 org1 peer1)
 expectCommand "cat \"$TEST_TMP/newest.block\"" "KVContract:get"

samples/gateway/node/package.json

@@ -6,16 +6,16 @@
   "author": "",
   "main": "server.js",
   "type": "module",
-  "engines" : { 
-    "node" : ">=22"
+  "engines": {
+    "node": ">=22"
   },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
     "start": "node server.js"
   },
   "dependencies": {
     "@grpc/grpc-js": "^1.13.3",
-    "@hyperledger/fabric-gateway": "^1.7.1"
+    "@hyperledger/fabric-gateway": "^1.7.1",
+    "dotenv": "^16.5.0"
   }
 }
-

samples/gateway/node/server.js

@@ -3,31 +3,34 @@ import { connect, hash, signers } from '@hyperledger/fabric-gateway';
 import * as crypto from 'node:crypto';
 import { promises as fs } from 'node:fs';
 import { TextDecoder } from 'node:util';
+import * as dotenv from 'dotenv';
+
+dotenv.config();
 
 const utf8Decoder = new TextDecoder();
 
 async function connection() {
-  const credentials = await fs.readFile(process.env.CREDENTIALS);  
+  const credentials = await fs.readFile(process.env.CREDENTIALS);
   const privateKeyPem = await fs.readFile(process.env.PRIVATE_KEY_PEM);
   const privateKey = crypto.createPrivateKey(privateKeyPem);
-  const signer = signers.newPrivateKeySigner(privateKey);  
+  const signer = signers.newPrivateKeySigner(privateKey);
   const tlsRootCert = await fs.readFile(
     process.env.TLS_ROOT_CERT,
   );
   const client = new grpc.Client(process.env.PEER_GATEWAY_URL, grpc.credentials.createSsl(tlsRootCert), {
     "grpc.ssl_target_name_override": process.env.PEER_ORG_NAME,
-  });  
+  });
   const gateway = connect({
     identity: { mspId: process.env.MSP_ID, credentials },
     signer,
     hash: hash.sha256,
     client,
-  });  
+  });
   try {
     const network = gateway.getNetwork(process.env.CHANNEL_NAME);
-    const contract = network.getContract(process.env.CONTRACT_NAME);  
+    const contract = network.getContract(process.env.CONTRACT_NAME);
     const putResult = await contract.submitTransaction('put', 'time', new Date().toISOString());
-    console.log('Put result:', utf8Decoder.decode(putResult));  
+    console.log('Put result:', utf8Decoder.decode(putResult));
     const getResult = await contract.evaluateTransaction('get', 'time');
     console.log('Get result:', utf8Decoder.decode(getResult));
   } finally {