[Home](./index.md) > [@firebase/auth](./auth.md) > [SignInMethod](./auth.signinmethod.md) ## SignInMethod enum Enumeration of supported sign-in methods. Signature: ```typescript export declare const enum SignInMethod ``` ## Enumeration Members | Member | Value | Description | | --- | --- | --- | | EMAIL\_LINK | "emailLink" | Email link sign in method | | EMAIL\_PASSWORD | "password" | Email/password sign in method | | FACEBOOK | "facebook.com" | Facebook sign in method | | GITHUB | "github.com" | GitHub sign in method | | GOOGLE | "google.com" | Google sign in method | | PHONE | "phone" | Phone sign in method | | TWITTER | "twitter.com" | Twitter sign in method |