/* * SPDX-License-Identifier: Apache-2.0 */ 'use strict'; const { Gateway, Wallets } = require('fabric-network'); const fs = require('fs'); const path = require('path'); async function main() { try { // load the network configuration const ccpPath = path.resolve(__dirname, '..', '..', 'test-network', 'organizations', 'peerOrganizations', 'org1.example.com', 'connection-org1.json'); let ccp = JSON.parse(fs.readFileSync(ccpPath, 'utf8')); // Create a new file system based wallet for managing identities. const walletPath = path.join(process.cwd(), 'wallet'); const wallet = await Wallets.newFileSystemWallet(walletPath); console.log(`Wallet path: ${walletPath}`); // Check to see if we've already enrolled the user. const identity = await wallet.get('appUser'); if (!identity) { console.log('An identity for the user "appUser" does not exist in the wallet'); console.log('Run the registerUser.js application before retrying'); return; } // Create a new gateway for connecting to our peer node. const gateway = new Gateway(); await gateway.connect(ccp, { wallet, identity: 'appUser', discovery: { enabled: true, asLocalhost: true } }); // Get the network (channel) our contract is deployed to. const network = await gateway.getNetwork('mychannel'); // Get the contract from the network. const contract = network.getContract('fabcar'); // Submit the specified transaction. // createCar transaction - requires 5 argument, ex: ('createCar', 'CAR12', 'Honda', 'Accord', 'Black', 'Tom') // changeCarOwner transaction - requires 2 args , ex: ('changeCarOwner', 'CAR12', 'Dave') await contract.submitTransaction('createCar', 'CAR12', 'Honda', 'Accord', 'Black', 'Tom'); console.log('Transaction has been submitted'); // Disconnect from the gateway. await gateway.disconnect(); } catch (error) { console.error(`Failed to submit transaction: ${error}`); process.exit(1); } } main();