Getting error while doing users registration in fabric using SDK - hyperledger-fabric

Question

I am trying to register the multiple user at one time however I am getting error while doing it as
"error: [FabricCAClientService.js]: Failed to enroll 0006, error:%o message=Enrollment failed with errors [[{"code":20,"message":"Authentication failure"}]], stack=Error: Enrollment failed with errors [[{"code":20,"message":"Authentication failure"}]]
at IncomingMessage.response.on (/vagrant/Dfarm-app/node/node_modules/fabric-ca-client/lib/FabricCAClient.js:470:22)
at emitNone (events.js:111:20)
at IncomingMessage.emit (events.js:208:7)
at endReadableNT (_stream_readable.js:1064:12)
at _combinedTickCallback (internal/process/next_tick.js:139:11)
at process._tickCallback (internal/process/next_tick.js:181:9)
Failed to register user: Error: Enrollment failed with errors [[{"code":20,"message":"Authentication failure"}]]"
I am trying to implement with one user its running fine we I am trying to implement with multiple user its giving error.
Can anyone suggest me how can multiple user can register in Blockchain.
Please see below registerUser.js file
'use strict';
const { FileSystemWallet, Gateway, X509WalletMixin } = require('fabric-network');
const fs = require('fs');
const path = require('path');
// capture network variables from config.json
// var configPath = path.join(process.cwd(), 'config.json');
// const configJSON = fs.readFileSync(configPath, 'utf8');
var configJSON = fs.readFileSync('config.json');
var config = JSON.parse(configJSON);
var connection_file = config.connection_file;
var appAdmin = config.appAdmin;
var orgMSPID = config.orgMSPID;
var userName = config.userName;
var gatewayDiscovery = config.gatewayDiscovery;
const ccpPath = path.join(process.cwd(), connection_file);
const ccpJSON = fs.readFileSync(ccpPath, 'utf8');
const ccp = JSON.parse(ccpJSON);
async function main() {
try {
var userDetails = config.userDetails;
// console.log('test', userDetails)
// 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.
for(var i=0; i< userDetails.length;i++){
// console.log('test',walletPath)
let userExists = await wallet.exists(userDetails[i].userName);
if (userExists) {
// console.log('test',userDetails[0].userName)
console.log(`An identity for the user ${userDetails[i].userName} already exists in the wallet`);
return;
}
}
// console.log('test',walletPath)
// Check to see if we've already enrolled the admin user.
const adminExists = await wallet.exists(appAdmin);
if (!adminExists) {
console.log(`An identity for the admin user ${appAdmin} 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: appAdmin, discovery: gatewayDiscovery });
// 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.
for(var i=0; i< userDetails.length;i++){
var secret = await ca.register({ enrollmentID:userDetails[i].enrollmentID,userName:userDetails[i].userName, role:userDetails[i].role }, adminIdentity);
var enrollment = await ca.enroll({ enrollmentID:userDetails[i].enrollmentID, enrollmentSecret: userDetails[i].enrollmentSecret });
var userIdentity = X509WalletMixin.createIdentity(orgMSPID, enrollment.certificate, enrollment.key.toBytes());
wallet.import(userDetails[i].userName, userIdentity);
console.log('Successfully registered and enrolled admin user ' + userDetails[i].userName + ' and imported it into the wallet');
}
} catch (error) {
console.error(`Failed to register user: ${error}`);
process.exit(1);
}
}
main();
The config.json file
{
"connection_file": "connection.json",
"appAdmin": "admin",
"appAdminSecret": "adminpw",
"orgMSPID": "DfarmadminMSP",
"caName": "ca.dfarmadmin.com",
"userDetails": [{"username":"user1","enrollmentID":"0006","role":"client","enrollmentSecret": "1234"},
{"username":"user2", "enrollmentID":"0002","role":"client","enrollmentSecret": "abcs" },
{"username":"user3", "enrollmentID":"0003","role":"client","enrollmentSecret": "9807" },
{"username":"user4","enrollmentID":"0004","role":"client","enrollmentSecret": "abcd" }
],
"gatewayDiscovery": { "enabled": false }
}
The connection.json file
{
"name": "basic-network",
"version": "1.0.0",
"client": {
"tlsEnable": false,
"adminUser": "admin",
"adminPassword": "adminpw",
"enableAuthentication": false,
"organization": "dfarmadmin",
"connection": {
"timeout": {
"peer": {
"endorser": "300"
},
"orderer": "300"
}
}
},
"channels": {
"dfarmchannel": {
"orderers": [
"orderer.dfarmadmin.com"
],
"peers": {
"peer0.dfarmadmin.com": {
"endorsingPeer": true,
"chaincodeQuery": true,
"ledgerQuery": true,
"eventSource": true
},
"connection": {
"timeout": {
"peer": {
"endorser": "6000",
"eventHub": "6000",
"eventReg": "6000"
}
}
},
"peer0.dfarmretail.com": {
"endorsingPeer": false,
"chaincodeQuery": true,
"ledgerQuery": true,
"eventSource": false
}
}
}
},
"organizations": {
"dfarmadmin": {
"mspid": "DfarmadminMSP",
"peers": [
"peer0.dfarmadmin.com"
],
"certificateAuthorities": [
"ca.dfarmadmin.com"
]
},
"dfarmretail": {
"mspid": "DfarmretailMSP",
"peers": [
"peer0.dfarmretail.com"
],
"certificateAuthorities": [
"ca.dfarmadmin.com"
]
}
},
"orderers": {
"orderer.dfarmadmin.com": {
"url": "grpc://localhost:7050",
"eventUrl": "grpc://localhost:7053"
}
},
"peers": {
"peer0.dfarmadmin.com": {
"url": "grpc://localhost:7051"
},
"peer0.dfarmretail.com": {
"url": "grpc://localhost:8051"
}
},
"certificateAuthorities": {
"ca.dfarmadmin.com": {
"url": "http://localhost:7054",
"caName": "ca.dfarmadmin.com"
}
}
}
AdminIdentiy console
adminIdentity User {
_name: 'admin',
_roles: null,
_affiliation: '',
_enrollmentSecret: '',
_identity:
Identity {
_certificate: '-----BEGIN CERTIFICATE-----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\nAiAEQ+w5pElSLFBINH/c0N1CgGN1snsdK1LRkUNjCk29Fg==\n-----END CERTIFICATE-----\n',
_publicKey: ECDSA_KEY { _key: [Object] },
_mspId: 'DfarmadminMSP',
_cryptoSuite:
CryptoSuite_ECDSA_AES {
_keySize: 256,
_hashAlgo: 'SHA2',
_cryptoKeyStore: [Object],
_curveName: 'secp256r1',
_ecdsaCurve: [Object],
_hashFunction: [Function],
_hashOutputSize: 32,
_ecdsa: [Object] } },
_signingIdentity:
SigningIdentity {
_certificate: '-----BEGIN CERTIFICATE-----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\nAiAEQ+w5pElSLFBINH/c0N1CgGN1snsdK1LRkUNjCk29Fg==\n-----END CERTIFICATE-----\n',
_publicKey: ECDSA_KEY { _key: [Object] },
_mspId: 'DfarmadminMSP',
_cryptoSuite:
CryptoSuite_ECDSA_AES {
_keySize: 256,
_hashAlgo: 'SHA2',
_cryptoKeyStore: [Object],
_curveName: 'secp256r1',
_ecdsaCurve: [Object],
_hashFunction: [Function],
_hashOutputSize: 32,
_ecdsa: [Object] },
_signer: Signer { _cryptoSuite: [Object], _key: [Object] } },
_mspId: 'DfarmadminMSP',
_cryptoSuite:
CryptoSuite_ECDSA_AES {
_keySize: 256,
_hashAlgo: 'SHA2',
_cryptoKeyStore:
CryptoKeyStore {
logger: [Object],
_store: [Object],
_storeConfig: [Object],
_getKeyStore: [Function] },
_curveName: 'secp256r1',
_ecdsaCurve:
PresetCurve {
curve: [Object],
g: <EC Point x: 6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296 y: 4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5>,
n: <BN: ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551>,
hash: [Object] },
_hashFunction: [Function],
_hashOutputSize: 32,
_ecdsa:
EC {
curve: [Object],
n: <BN: ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551>,
nh: <BN: 7fffffff800000007fffffffffffffffde737d56d38bcf4279dce5617e3192a8>,
g: <EC Point x: 6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296 y: 4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5>,
hash: [Object] } } }
2019-08-14T11:17:28.526Z - error: [FabricCAClientService.js]: Failed to enroll 005, error:%o message=Enrollment failed with errors [[{"code":20,"message":"Authentication failure"}]], stack=Error: Enrollment failed with errors [[{"code":20,"message":"Authentication failure"}]]
at IncomingMessage.response.on (/vagrant/Dfarm-app/Node/node_modules/fabric-ca-client/lib/FabricCAClient.js:470:22)
at emitNone (events.js:111:20)
at IncomingMessage.emit (events.js:208:7)
at endReadableNT (_stream_readable.js:1064:12)
at _combinedTickCallback (internal/process/next_tick.js:139:11)
at process._tickCallback (internal/process/next_tick.js:181:9)
Failed to register user: Error: Enrollment failed with errors [[{"code":20,"message":"Authentication failure"}]]

Answer 1

Error: Authentication failure
It is clear that you are providing wrong credentials which means the wrong secret
For enrollment, we need ID & Secret
Double-check the secret and make sure that you have registered before proceeding for the enrolment

Answer 2

I suspect the issue is because you have a coding error (or error in your JSON :-)). The code is looking for userNamefield in an element, but your JSON array has a field username (lc). You could easily change your JSON to match.

Answer 3

If a user is to be enrolled for multiple times, you will need to specify maxEnrollments in the json of ca.register. Otherwise, ca.enroll will prompt { code: 20, message: 'Authentication failure'}.
For example, for registration you may have
var secret = await ca.register({
enrollmentID: userDetails[i].enrollmentID,
userName: userDetails[i].userName,
role: userDetails[i].role,
maxEnrollments: -1 // -1 means no limit on number of enrollments after registration
}, adminIdentity);