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Authenticate Using Google with JavaScript  |  Firebase

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You can let your users authenticate with Firebase using their Google Accounts. You can either use the Firebase SDK to carry out the Google sign-in flow, or carry out the sign-in flow manually using the Sign In With Google library and passing the resulting ID token to Firebase. If you are building a web app, the easiest way to authenticate your users with Firebase using their Google Accounts is to handle the sign-in flow with the Firebase JavaScript SDK. (If you want to authenticate a user in Node.js or other non-browser environment, you must handle the sign-in flow manually.) To handle the sign-in flow with the Firebase JavaScript SDK, follow these steps: This is also where you can catch and handle errors. For a list of error codes have a look at the Auth Reference Docs. If you enabled the One account per email address setting in the Firebase console, when a user tries to sign in a to a provider (such as Google) with an email that already exists for another Firebase user's provider (su

Firebase Documentation Authentication Build Send feedback Authenticate Using Google with JavaScript Stay organized with collections Save and categorize content based on your preferences. You can let your users authenticate with Firebase using their Google Accounts. You can either use the Firebase SDK to carry out the Google sign-in flow, or carry out the sign-in flow manually using the Sign In With Google library and passing the resulting ID token to Firebase. Before you begin Add Firebase to your JavaScript project . Enable Google as a sign-in provider for your Firebase project: In the Fireba

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