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registerUser.js - Register User to ca.example.com
What is the user registration Node.js program registerUser.js?
✍: FYIcenter.com
User registration Node.js program registerUser.js
registers an user "user1" to ca.example.com.
1. View the registerUser.js source code:
$ cp ~/hyperledger-binaries/fabric-samples/fabcar/javascript $ more registerUser.js /* * SPDX-License-Identifier: Apache-2.0 */ 'use strict'; const { FileSystemWallet, Gateway, X509WalletMixin } = require('fabric-network'); const fs = require('fs'); const path = require('path'); const ccpPath = path.resolve(__dirname, '..', '..', 'basic-network', 'connection.json'); const ccpJSON = fs.readFileSync(ccpPath, 'utf8'); const ccp = JSON.parse(ccpJSON); async function main() { try { // Create a new file system based wallet for managing identities. const walletPath = path.join(process.cwd(), 'wallet'); const wallet = new FileSystemWallet(walletPath); console.log(`Wallet path: ${walletPath}`); // Check to see if we've already enrolled the user. const userExists = await wallet.exists('user1'); if (userExists) { console.log('An identity for the user "user1" already exists in the wallet'); return; } // Check to see if we've already enrolled the admin user. const adminExists = await wallet.exists('admin'); if (!adminExists) { console.log('An identity for the admin user "admin" does not exist in the wallet'); console.log('Run the enrollAdmin.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: 'admin', discovery: { enabled: false } }); // Get the CA client object from the gateway for interacting with the CA. const ca = gateway.getClient().getCertificateAuthority(); const adminIdentity = gateway.getCurrentIdentity(); // Register the user, enroll the user, and import the new identity into the wallet. const secret = await ca.register({ affiliation: 'org1.department1', enrollmentID: 'user1', role: 'client' }, adminIdentity); const enrollment = await ca.enroll({ enrollmentID: 'user1', enrollmentSecret: secret }); const userIdentity = X509WalletMixin.createIdentity('Org1MSP', enrollment.certificate, enrollment.key.toBytes()); wallet.import('user1', userIdentity); console.log('Successfully registered and enrolled admin user "user1" and imported it into the wallet'); } catch (error) { console.error(`Failed to register user "user1": ${error}`); process.exit(1); } } main();
As you can see, the script enrolls a user ID with a secret password with ca.example.com, and also registered him as an "client" user. Then it receives the public certificate and the private key from ca.example.com and save them in a directory call wallet.
2. Run it:
$ node registerUser Successfully registered and enrolled admin user "user2" and imported it into the wallet $ ls -l wallet/user1/ -rw-rw-r-- 1 fyicenter 246 Apr 20 02:45 e1cbc655460d060954514cefa0dc0a4c6e2...-priv -rw-rw-r-- 1 fyicenter 182 Apr 20 02:45 e1cbc655460d060954514cefa0dc0a4c6e2...-pub -rw-rw-r-- 1 fyicenter 1180 Apr 20 02:45 user1
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⇒ "Failed to load gRPC binary module" Error
⇠enrollAdmin.js - Enroll Admin to ca.example.com
⇑ WYFA (Writing Your First Application)
⇑⇑ Hyperledger Tutorials
2020-01-04, 1118👍, 0💬
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