As mentioned by @oieduardorabelo, you can simply install 'amazon-cognito-identity-js' where you can also find well done examples on npm.
Here is my test code to easily understand this lib. You must have already built the infrastructure on AWS (userPool, userClient and add a new user to test sign in - in my case the user has to change the password on first login so I added this use case on my script):
import * as AmazonCognitoIdentity from 'amazon-cognito-identity-js';
var authenticationData = {
Username: 'email',
Password: 'password',
};
var authenticationDetails = new AmazonCognitoIdentity.AuthenticationDetails(authenticationData);
var poolData = {
UserPoolId: 'us-east-1_userpoolid',
ClientId: '26pjexamplejpkvt'
};
var userPool = new AmazonCognitoIdentity.CognitoUserPool(poolData);
var cognitoUser = userPool.getCurrentUser();
console.log(cognitoUser);
if (!cognitoUser) {
var userData = {
Username: authenticationData.Username,
Pool: userPool
};
var cognitoUser = new AmazonCognitoIdentity.CognitoUser(userData);
cognitoUser.authenticateUser(authenticationDetails, {
onSuccess: function (result) {
var accessToken = result.getAccessToken().getJwtToken();
var idToken = result.idToken.jwtToken;
console.log('Success', accessToken, idToken);
},
newPasswordRequired: function (userAttributes, requiredAttributes) {
delete userAttributes.email_verified;
cognitoUser.completeNewPasswordChallenge('DemoPassword1!', userAttributes, {
onSuccess: (data) => {
console.log(data);
},
onFailure: function (err) {
alert(err);
}
});
},
onFailure: function (err) {
alert(err);
},
});
}
If someone is interested in setup this test project from scratch run:
npm init -y
npm i -D webpack webpack-cli
npm i amazon-cognito-identity-js
in webpack.config.js:
var path = require('path');
module.exports = {
entry: './src/app.js',
mode: 'development',
output: {
path: path.resolve(__dirname, "dist"),
filename: 'main.js',
}
}
Create a new file in ./src/app.js where add the previous amazonCognitoIdentity code with the right AWS info ref and create ./dist/index.html whith:
...
<body>
<script src="main.js"></script>
</body>
in package.json add script "watch":
...
"scripts": {
"watch": "webpack --watch",
}
Finally run it:
npm run watch
and open the index.html directly on the browser with dev console as well.
Hopefully useful for someone.
