How do you properly implement email verification and password reset functionality using Firebase Authentication's built in features?

Intermediate

Answer

Firebase Authentication provides simple built in methods for both of these common authentication needs, with sendEmailVerification automatically sending a verification link to a newly registered user's email address, letting your app then check the emailVerified property to confirm whether they have actually clicked that link yet, and sendPasswordResetEmail sending a password reset link to a user who has genuinely forgotten their existing password, both of which handle the entire underlying email delivery and secure link generation process for you automatically, without requiring you to build and maintain any of that infrastructure yourself.

await FirebaseAuth.instance.currentUser?.sendEmailVerification();
await FirebaseAuth.instance.sendPasswordResetEmail(email: email);

Real-world example A social app requires new users to verify their email address before being able to actually post content, using Firebase's built in sendEmailVerification method to handle the entire verification email process without any custom backend email infrastructure of their own.

Common follow-ups: Can the default email verification and password reset email templates actually be customized?;What happens if a user attempts to sign in before they have actually verified their email address?

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