Let's add AWS Cognito Sign In function to the Node project today.
I suppose your project already add AWS Cognito Sign Up to your project.
If not, please take a look at my provious articles:
Also, you can download the full codebase here for AWS Cognito Signin if you are interested in this AWS Cognito Sign In.
Add a AWS Cognito Sign In route
- Add /api/auth/signin route in existing your node.js project, if don't use validateSigninRequest middleware, then you can remove the
validateSigninRequestmiddleware.
import controller from '../controllers/auth.controller';
import {
validateSignupRequest,
validateSignupConfirmRequest,
} from '../middleware';
export default (app) => {
app.post('/api/auth/signup', validateSignupRequest, controller.signup);
app.post(
'/api/auth/email/verify',
validateSignupConfirmRequest,
controller.signupConfirm,
);
app.post('/api/auth/signin', validateSigninRequest, controller.signin); // add signin route
};
Add a Sign In Function in the auth controller.
- Add a Sign In Function in the controller.
// User Signup
import CognitoIdentity from '../services/cognito';
const CognitoIdentityService = CognitoIdentity();
const signin = async (req, res) => {
const { email, password } = req.body;
const cognitoParams = {
username: email,
password,
};
try {
const cognitoUser = await new Promise((resolve, reject) => {
CognitoIdentityService.signin(cognitoParams, (err, user) => {
if (err) {
reject(err);
} else {
resolve(user);
}
});
});
// DB logic here
// ...
res.status(200).send({
success: true,
message: 'User logined successfully',
user: cognitoUser,
});
} catch (error) {
res.status(400).send({ success: false, message: error.message, error });
}
};
export default {
signup,
signupConfirm,
signin, // add
};
Add a Sign Up Email Confirm in the services.
And then we need to add the AWS Cognito user authentication service to the services folder. I will use the amazon-cognito-identity-js for the service.
If you don't understand how to work the service, please check the service folder structure on my git repository.
services/
└──cognito/
├── index.js
└── methods/
├── index.js
├── signup.js
├── signin.js // add
└── signupConfirm.js
This is a signin file, please add it.
import {
CognitoUserPool,
CognitoUser,
AuthenticationDetails,
} from 'amazon-cognito-identity-js';
/**
* Signin
* @param {*} poolData
* @param {{username, password}} body
* @param {*} callback
*/
const signin = (poolData, body, callback) => {
const userPool = new CognitoUserPool(poolData);
const { username, password } = body;
const authenticationData = {
Username: username,
Password: password,
};
const authenticationDetails = new AuthenticationDetails(authenticationData);
const userData = {
Username: username,
Pool: userPool,
};
const cognitoUser = new CognitoUser(userData);
cognitoUser.authenticateUser(authenticationDetails, {
onSuccess: (res) => {
const data = {
refreshToken: res.getRefreshToken().getToken(),
accessToken: res.getAccessToken().getJwtToken(),
accessTokenExpiresAt: res.getAccessToken().getExpiration(),
idToken: res.getIdToken().getJwtToken(),
idTokenExpiresAt: res.getAccessToken().getExpiration(),
};
callback(null, data);
},
onFailure: (err) => {
callback(err);
},
mfaRequired: () => {
const data = {
nextStep: 'MFA_AUTH',
loginSession: cognitoUser.Session,
};
callback(null, data);
},
totpRequired: () => {
const data = {
nextStep: 'SOFTWARE_TOKEN_MFA',
loginSession: cognitoUser.Session,
};
callback(null, data);
},
newPasswordRequired: () => {
const data = {
nextStep: 'NEW_PASSWORD_REQUIRED',
loginSession: cognitoUser.Session,
};
callback(null, data);
},
});
};
export default signin;
The Result in the Postman
References
https://github.com/itwebtiger/express-amazon-cognito/tree/congnito-signin
https://docs.aws.amazon.com/cognito/latest/developerguide/cognito-user-pools-social-idp.html#cognito-user-pools-social-idp-step-1
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