updateRole.js

'use strict';

const {FileSystemWallet, Gateway} = require('fabric-network');
const fs = require('fs');
const path = require('path');

async function main() {
    try {

        // Parse the connection profile. This would be the path to the file downloaded
        // from the IBM Blockchain Platform operational console.
        const ccpPath = path.resolve(__dirname, 'connection.json');
        const ccp = JSON.parse(fs.readFileSync(ccpPath, 'utf8'));

        // Configure a wallet. This wallet must already be primed with an identity that
        // the application can use to interact with the peer node.
        const walletPath = path.resolve(__dirname, 'wallet');
        const wallet = new FileSystemWallet(walletPath);

        // Create a new gateway, and connect to the gateway peer node(s). The identity
        // specified must already exist in the specified wallet.
        const gateway = new Gateway();
        await gateway.connect(ccp, {wallet, identity: 'user1', discovery: {enabled: true, asLocalhost: false}});

        // Get the network channel that the smart contract is deployed to.
        const network = await gateway.getNetwork('channel1');

        // Get the smart contract from the network channel.
        const contract = network.getContract('consentio');

        // Submit the 'createCar' transaction to the smart contract, and wait for it
        // to be committed to the ledger.
        const response = await contract.submitTransaction("updateRole", "hippa", "all", "dc1", "r");
        console.log(`Transaction has been submitted. ${response.toString('utf8')}`);

        await gateway.disconnect();

    } catch (error) {
        console.error(`Failed to submit transaction: ${error}`);
        process.exit(1);
    }
}

main();