Update-User-Cognito

UpdateUserCognito.js

function update(username, password){
        var attributeList = [];
        attributeList.push(new AmazonCognitoIdentity.CognitoUserAttribute({
            Name: "custom:scope",
            Value: "some new value"
        }));
        attributeList.push(new AmazonCognitoIdentity.CognitoUserAttribute({
            Name: "name",
            Value: "some new value"
        }));
  
        var authenticationDetails = new AmazonCognitoIdentity.AuthenticationDetails({
            Username: username,
            Password: password,
        });

        var userData = {
            Username: username,
            Pool: userPool
        };
        var cognitoUser = new AmazonCognitoIdentity.CognitoUser(userData);

        cognitoUser.updateAttributes(attributeList, (err, result) => {
            if (err) {
                //handle error
            } else {
                console.log(result);
            }
        });
}