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https://github.com/hyperledger/fabric-samples.git
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ee83195685
Applications must pass an 'Common Connection Profile' object to the Gateway as of v2. NodeSDK should not have access to the file system. Signed-off-by: Bret Harrison <beharrison@nc.rr.com>
55 lines
2 KiB
JavaScript
55 lines
2 KiB
JavaScript
/*
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* SPDX-License-Identifier: Apache-2.0
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*/
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'use strict';
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const { Gateway, Wallets } = require('fabric-network');
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const path = require('path');
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const ccpPath = path.resolve(__dirname, '..', '..', 'first-network', 'connection-org1.json');
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async function main() {
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try {
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// Create a new file system based wallet for managing identities.
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const walletPath = path.join(process.cwd(), 'wallet');
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const wallet = await Wallets.newFileSystemWallet(walletPath);
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console.log(`Wallet path: ${walletPath}`);
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// Check to see if we've already enrolled the user.
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const identity = await wallet.get('user1');
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if (!identity) {
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console.log('An identity for the user "user1" does not exist in the wallet');
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console.log('Run the registerUser.js application before retrying');
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return;
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}
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let connectionProfile = JSON.parse(fs.readFileSync(ccpPath, 'utf8'));
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// Create a new gateway for connecting to our peer node.
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const gateway = new Gateway();
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await gateway.connect(connectionProfile, { wallet, identity: 'user1', discovery: { enabled: true, asLocalhost: true } });
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// Get the network (channel) our contract is deployed to.
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const network = await gateway.getNetwork('mychannel');
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// Get the contract from the network.
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const contract = network.getContract('fabcar');
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// Submit the specified transaction.
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// createCar transaction - requires 5 argument, ex: ('createCar', 'CAR12', 'Honda', 'Accord', 'Black', 'Tom')
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// changeCarOwner transaction - requires 2 args , ex: ('changeCarOwner', 'CAR10', 'Dave')
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await contract.submitTransaction('createCar', 'CAR12', 'Honda', 'Accord', 'Black', 'Tom');
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console.log('Transaction has been submitted');
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// Disconnect from the gateway.
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await gateway.disconnect();
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} catch (error) {
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console.error(`Failed to submit transaction: ${error}`);
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process.exit(1);
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}
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}
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main();
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