Merge pull request hyperledger-labs#23 from urgetolearn/main

added connection-profile to invoke the chaincode

Author: technomad01

extension.js

@@ -18,6 +18,7 @@ const {
   getLatestBlockNumber,
   connectToFabric,
 } = require("./src/blockReader/blockQueries");
+const { invokeChaincode } = require('./src/invokechaincode/invoke.js');
 
 let loadedConnectionProfile = null;
 
@@ -266,7 +267,9 @@ function activate(context) {
   function isGoChaincodeFile(filePath) {
     return filePath.toLowerCase().endsWith('.go');
   }
-
+  function isJavaChaincodeFile(filePath) {
+    return filePath.toLowerCase().endsWith('.java');
+  }
   function extractGoFunctions(code) {
     const functionDetails = [];
     const regex = /func\s*\((\w+)\s+\*SmartContract\)\s*(\w+)\s*\((.*?)\)\s*(\w*)/g;
@@ -280,6 +283,19 @@ function activate(context) {
 
     return functionDetails;
   }
+  function extractJavaFunctions(code) {
+    const functionDetails = [];
+    const regex = /public\s+.*\s+(\w+)\s*\((.*?)\)/g;
+    let match;
+
+    while ((match = regex.exec(code)) !== null) {
+      const functionName = match[1];
+      const params = match[2];
+      functionDetails.push({ name: functionName, params });
+    }
+
+    return functionDetails;
+  }
 
   function filterIntAndStringFunctions(functions) {
     return functions.filter(func => /int|string/.test(func.params)).map(func => `${func.name}(${func.params})`);
@@ -343,26 +359,15 @@ function activate(context) {
     outputChannel.appendLine(`Function: ${functionName}`);
     outputChannel.appendLine(`Arguments: ${finalArgs}`);
 
-    vscode.window.showInformationMessage(`Arguments captured. Press "Invoke" to execute the command.`, "Invoke").then(selection => {
+    vscode.window.showInformationMessage(`Arguments captured. Press "Invoke" to execute the command.`, "Invoke").then(async selection => {
       if (selection === "Invoke") {
-        invokeCommand(functionName, argumentValues);
+        await invokeChaincode(functionName, argumentValues, context);
       }
     });
+    
   }
 
 
-  async function invokeCommand(functionName, argumentValues) {
-    outputChannel.appendLine(`Invoking function ${functionName} with arguments: ${argumentValues.join(', ')}`);
-
-    try {
-
-      outputChannel.appendLine(`Simulated invocation of ${functionName}(${argumentValues.join(', ')})`);
-    } catch (error) {
-      outputChannel.appendLine(`Error during invocation: ${error.message}`);
-    }
-
-    outputChannel.show();
-  }
   context.subscriptions.push(
     vscode.commands.registerCommand(
       "fabric-network.switchNetwork",

package-lock.json

@@ -201,6 +201,7 @@
   },
   "dependencies": {
     "@hyperledger/fabric-gateway": "^1.7.0",
+    "fabric-ca-client": "^2.2.20",
     "fabric-network": "^2.2.20",
     "js-yaml": "^4.1.0",
     "simple-git": "^3.27.0"

package.json

@@ -0,0 +1,43 @@
+{
+  "name": "fabric-network",
+  "version": "1.0.0",
+  "client": {
+    "organization": "Org1",
+    "connection": {
+      "timeout": {
+        "peer": "300"
+      }
+    }
+  },
+  "channels": {
+    "mychannel": {
+      "orderers": [
+        {
+          "url": "grpcs://localhost:7050"
+        }
+      ],
+      "peers": {
+        "peer0.org1.example.com": {
+          "url": "grpcs://localhost:7051"
+        }
+      }
+    }
+  },
+  "organizations": {
+    "Org1": {
+      "mspid": "Org1MSP",
+      "peerNames": ["peer0.org1.example.com"],
+      "certificateAuthorities": ["ca.org1.example.com"]
+    }
+  },
+  "orderers": [
+    {
+      "url": "grpcs://localhost:7050"
+    }
+  ],
+  "peers": {
+    "peer0.org1.example.com": {
+      "url": "grpcs://localhost:7051"
+    }
+  }
+}

src/invokechaincode/connection-profile.json

@@ -0,0 +1,38 @@
+const { Gateway, Wallets } = require('fabric-network');
+const FabricCAServices = require('fabric-ca-client');
+const path = require('path');
+const fs = require('fs');
+const { log } = require('console');
+
+async function invokeChaincode(functionName, args, context) {
+    try {
+        
+        const ccpPath = path.resolve(__dirname, 'connection-profile.json');
+        const ccp = JSON.parse(fs.readFileSync(ccpPath, 'utf8'));
+        const wallet = await Wallets.newFileSystemWallet(path.join(process.cwd(), 'wallet'));     
+        const gateway = new Gateway();
+        await gateway.connect(ccp, {
+            wallet,
+            identity: 'admin',
+            discovery: { enabled: true, asLocalhost: true }
+        });
+
+        
+        const network = await gateway.getNetwork('mychannel');
+        const contract = network.getContract('mychaincode');
+       
+        const result = await contract.submitTransaction('CreateAsset', 'asset1', '100');
+        console.log(`Chaincode invoked successfully. Result: ${result.toString()}`);
+
+        
+        await gateway.disconnect();
+
+        return result.toString();
+    } catch (error) {
+        console.error(`Failed to invoke chaincode: ${error.message}`);
+        throw new Error(`Failed to invoke chaincode: ${error.message}`);
+    }
+}
+
+
+invokeChaincode();