What is push () in Firebase?

push. Add to a list of data in the database . Every time you push a new node onto a list, your database generates a unique key, like messages/users/<unique-user-id>/<username> transaction. Use transactions when working with complex data that could be corrupted by concurrent updates.

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Does firebase need API?

APIs are a way to provide services for your own or third-party apps to use. Firebase allows you to provide custom services that, in turn, make use of Firebase’s own services without the hassle of setting up a backend for those services .

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Should I use Firebase or REST API?

Choosing between the two comes down to your requirements. If you want your app to have a real-time database, you should go with Firebase . If you require more efficient queries during development, you should pick REST APIs. You can also combine the two by having a Firebase database attached to your REST API.

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