Authentication and Authorization are base on security.Authentication use for identify a user and users data.Which data user providing to access into system.Authorization is start after done Authentication.It checked providing data is ture or not.If it ture it will show system recourse

Google Firebase have or provide lots of futures.Its a realtime database that helps alow to access to database directly from clint site code.Firebase help to save time to write code in backend.With help of firebase we can Sing,Run,Host,Mange any application. FireBase ALTERNATIVES? . There are lot of tech compeny provied Services like Firebase.For Ex - AWS,Auth0,Back4App ect.

As i say in previous blog firebase provide lots of services and all are most popular.With Firebase we can develop app,web-app,game.And we can host those big project in firebase.With help of it we can also manage big database.If we look on other Alternavite tool services provider they basicly based on a single future.Like : Pubnub – Real-time APIs and Global Messaging