Before you can use Firebase Authentication, you need to:
Read moreHow do I authenticate to Firebase?
To sign a user into your app, you first get authentication credentials from the user. These credentials can be the user’s email address and password, or an OAuth token from a federated identity provider. Then, you pass these credentials to the Firebase Authentication SDK.
Read moreWhat is Firebase phone authentication?
You can use Firebase Authentication to sign in a user by sending an SMS message to the user’s phone . The user signs in using a one-time code contained in the SMS message.
Read moreWhy should I use Firebase for authentication?
Firebase Authentication aims to make building secure authentication systems easy, while improving the sign-in and onboarding experience for end users . It provides an end-to-end identity solution, supporting email and password accounts, phone auth, and Google, Twitter, Facebook, and GitHub login, and more.
Read moreIs authentication free in Firebase?
On the Blaze plan, Phone Authentication provides a no-cost tier . The first 10K verifications for both instances (USA, Canada, and India and All other countries) are provided at no cost each month. You are only charged on usage past this no-cost allotment. All other Firebase Auth features are no-cost on all plans.
Read moreHow secure is Firebase Auth?
The short answer is yes: by authenticating your users and writing security rules, you can fully restrict read / write access to your Firebase data . In a nutshell, Firebase security is enforced by server-side rules, that you author, and govern read or write access to given paths in your Firebase data tree.
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