Currently we are working on this demo. :
Please change below information for Checking demo code :
1.Create your project in firebase console
-For the firebase chat you require to create project in firebase console and if already exist then you can add as app.
-After adding your app with package download "google-services.json" from console and put it in your app level module.
3.Configure project in firebase console
-In firebase console after select your app you find one new page, From this page select Auth menu from left side menu list and after that you find one tab SIGN-IN METHOD select it and after allow email/password is sign in provide.