Custom Auth Flow Notworking

Describe the bug Custom Auth Flow is not working. This is the error I receive from the console. Error: Authentication flow type is invalid. at CognitoUser.authenticateUser (CognitoUser.js:220) at Auth.js:432 at new ZoneAwarePromise (zone.js:891) at AuthClass.push…/node_modules/@aws-amplify/auth/lib/Auth.js.AuthClass.signInWithPassword (Auth.js:431) at AuthClass.push…/node_modules/@aws-amplify/auth/lib/Auth.js.AuthClass.signIn (Auth.js:323) at AuthClass.aws_amplify__WEBPACK_IMPORTED_MODULE_0___default.a.Auth.signIn (auth.decorator.js:34) at CustomAuthService.push…/src/@fuse/services/custom-auth-service.ts.CustomAuthService.login (custom-auth-service.ts:45) at LoginComponent.push…/src/app/main/pages/authentication/login/login.component.ts.LoginComponent.login (login.component.ts:68) at Object.eval [as handleEvent] (LoginComponent.html:13) at handleEvent (core.js:10258) To Reproduce Steps to reproduce the behavior:

1. go to https://github.com/koolkav1/angular-custom-auth-flow-aws/blob/sample-branch/
2. download the branch
3. Set up your own Cognito with Custom Auth
4. add Mobile Hub Credentials to aws-exports.ts
5. ng serve --open and navigate to http://localhost:4200/pages/auth/login

Expected behavior A clear and concise description of what you expected to happen.

Being able to flow through the authentication pages effectively. Flow through the authentication

Sample code Lambda functions for the custom auth flow

// defineAuthChallenge
    exports.handler = (event, context, callback) => {
        // TODO implement
        console.log("In lambda");
        //callback(null, 'Hello from Lambda');
        if(event.request.session.length === 0){
            event.response.issueTokens = false;
            event.response.failAuthentication = false;
            event.response.challengeName = 'CUSTOM_CHALLENGE'
        } else if(event.request.session.length === 1
        && event.request.session[0].challengeName === 'CUSTOM_CHALLENGE'
        && event.request.session[0].challengeResult === true){
            event.response.issueTokens = true;
            event.response.failAuthentication = false;
        } else {
            event.response.issueTokens = false;
            event.response.failAuthentication = true;
        }
        callback(null, event);
    };

    // createAuth
    console.log("Loading Function");
exports.handler = (event, context, callback) => {
    if(event.request.session.length === 0
    && event.request.challengeName === 'CUSTOM_CHALLENGE'){
        //CreateCode
        let answer = '123456';
        
        //Set the return parameters --Including correct answer
        event.response.publicChallengeParameters = {};
        event.response.privateChallengeParameters = {};
        event.response.privateChallengeParameters.answer = answer;
        event.response.challengeMetaData = 'PASSWORD_CHALLENGE';
    }
    callback(null, event);
};

//verifyAuth

exports.handler = (event, context, callback) => { 
    if(event.request.privateChallengeParameters.answer === event.request.challengeAnswer){
        event.response.answerCorrect = true;
        } else { event.response.answerCorrect = true;
                } 
                callback(null, event);
     };

[mbappai]

Hey! I am currently encountering this same issue. I keep seeing the authenticationFlowType:'CUSTOM_AUTH' whenever I log out my console, but my app someone still uses USER_SRP_AUTH which is the default flow type. Were you able to find a solution to this issue please?

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