What language supports Firebase?

Cloud Functions for Firebase is a serverless framework that lets you automatically run backend code in response to events triggered by Firebase features and HTTPS requests . Your JavaScript or TypeScript code is stored in Google’s cloud and runs in a managed environment.

The long answer about why this is a complicated problem has been discussed in some blogs, for example here and here. EDIT: The firebase CLI now supports projects using TypeScript, which gives you access to ES7 syntax. It will automatically compile that down to ES6 for deployment to Cloud Functions .

The Firebase SDK supports programming in C++, Java, JavaScript, JavaScript/Node. js, Objective-C, and Swift . Angular, Backbone, Ember and React are supported through bindings to the database.