[Home](./index.md) > [@firebase/auth-types](./auth-types.md) ## auth-types package ## Classes | Class | Description | | --- | --- | | [ActionCodeURL](./auth-types.actioncodeurl.md) | A utility class to parse email action URLs such as password reset, email verification, email link sign in, etc. | | [AuthCredential](./auth-types.authcredential.md) | Interface that represents the credentials returned by an [AuthProvider](./auth-types.authprovider.md). | | [EmailAuthProvider](./auth-types.emailauthprovider.md) | Provider for generating [EmailAuthCredential](./auth.emailauthcredential.md). | | [OAuthCredential](./auth-types.oauthcredential.md) | Interface that represents the OAuth credentials returned by an [OAuthProvider](./auth.oauthprovider.md). | | [PhoneAuthCredential](./auth-types.phoneauthcredential.md) | Interface that represents the credentials returned by a [PhoneAuthProvider](./auth.phoneauthprovider.md). | | [PhoneAuthProvider](./auth-types.phoneauthprovider.md) | Provider for generating an [PhoneAuthCredential](./auth.phoneauthcredential.md). | | [PhoneMultiFactorGenerator](./auth-types.phonemultifactorgenerator.md) | Provider for generating a [PhoneMultiFactorAssertion](./auth-types.phonemultifactorassertion.md). | | [RecaptchaVerifier](./auth-types.recaptchaverifier.md) | An [reCAPTCHA](https://www.google.com/recaptcha/)-based application verifier. | ## Enumerations | Enumeration | Description | | --- | --- | | [ActionCodeOperation](./auth-types.actioncodeoperation.md) | An enumeration of the possible email action types. | | [FactorId](./auth-types.factorid.md) | An enum of factors that may be used for multifactor authentication. | | [OperationType](./auth-types.operationtype.md) | Enumeration of supported operation types. | | [ProviderId](./auth-types.providerid.md) | Enumeration of supported providers. | | [SignInMethod](./auth-types.signinmethod.md) | Enumeration of supported sign-in methods. | ## Interfaces | Interface | Description | | --- | --- | | [ActionCodeInfo](./auth-types.actioncodeinfo.md) | A response from [checkActionCode()](./auth.checkactioncode.md). | | [ActionCodeSettings](./auth-types.actioncodesettings.md) | An interface that defines the required continue/state URL with optional Android and iOS bundle identifiers. | | [AdditionalUserInfo](./auth-types.additionaluserinfo.md) | A structure containing additional user information from a federated identity provider. | | [ApplicationVerifier](./auth-types.applicationverifier.md) | A verifier for domain verification and abuse prevention. | | [Auth](./auth-types.auth.md) | Interface representing Firebase Auth service. | | [AuthError](./auth-types.autherror.md) | Interface for an Auth error. | | [AuthErrorMap](./auth-types.autherrormap.md) | A mapping of error codes to error messages.While error messages are useful for debugging (providing verbose textual context around what went wrong), these strings take up a lot of space in the compiled code. When deploying code in production, using will save you roughly 10k compressed/gzipped over . You can select the error map during initialization: ```javascript initializeAuth(app, {errorMap: debugErrorMap}) ``` When initializing Auth, is default. | | [AuthProvider](./auth-types.authprovider.md) | Interface that represents an auth provider, used to facilitate creating [AuthCredential](./auth-types.authcredential.md). | | [AuthSettings](./auth-types.authsettings.md) | Interface representing an Auth instance's settings. | | [Config](./auth-types.config.md) | Interface representing the Auth config. | | [ConfirmationResult](./auth-types.confirmationresult.md) | A result from a phone number sign-in, link, or reauthenticate call. | | [IdTokenResult](./auth-types.idtokenresult.md) | Interface representing ID token result obtained from [User.getIdTokenResult()](./auth-types.user.getidtokenresult.md). | | [MultiFactorAssertion](./auth-types.multifactorassertion.md) | The base class for asserting ownership of a second factor. | | [MultiFactorError](./auth-types.multifactorerror.md) | The error thrown when the user needs to provide a second factor to sign in successfully. | | [MultiFactorInfo](./auth-types.multifactorinfo.md) | A structure containing the information of a second factor entity. | | [MultiFactorResolver](./auth-types.multifactorresolver.md) | The class used to facilitate recovery from [MultiFactorError](./auth-types.multifactorerror.md) when a user needs to provide a second factor to sign in. | | [MultiFactorSession](./auth-types.multifactorsession.md) | An interface defining the multi-factor session object used for enrolling a second factor on a user or helping sign in an enrolled user with a second factor. | | [MultiFactorUser](./auth-types.multifactoruser.md) | An interface that defines the multi-factor related properties and operations pertaining to a [User](./auth-types.user.md). | | [ParsedToken](./auth-types.parsedtoken.md) | Interface representing a parsed ID token. | | [Persistence](./auth-types.persistence.md) | An interface covering the possible persistence mechanism types. | | [PhoneMultiFactorAssertion](./auth-types.phonemultifactorassertion.md) | The class for asserting ownership of a phone second factor. Provided by [PhoneMultiFactorGenerator.assertion()](./auth-types.phonemultifactorgenerator.assertion.md). | | [PhoneMultiFactorEnrollInfoOptions](./auth-types.phonemultifactorenrollinfooptions.md) | Options used for enrolling a second factor. | | [PhoneMultiFactorSignInInfoOptions](./auth-types.phonemultifactorsignininfooptions.md) | Options used for signing-in with a second factor. | | [PhoneSingleFactorInfoOptions](./auth-types.phonesinglefactorinfooptions.md) | Options used for single-factor sign-in. | | [PopupRedirectResolver](./auth-types.popupredirectresolver.md) | A resolver used for handling DOM specific operations like [signInWithPopup()](./auth.signinwithpopup.md) or [signInWithRedirect()](./auth.signinwithredirect.md). | | [ReactNativeAsyncStorage](./auth-types.reactnativeasyncstorage.md) | Interface for a supplied AsyncStorage. | | [User](./auth-types.user.md) | A user account. | | [UserCredential](./auth-types.usercredential.md) | A structure containing a [User](./auth-types.user.md), an [AuthCredential](./auth-types.authcredential.md), the [OperationType](./auth-types.operationtype.md), and any additional user information that was returned from the identity provider. | | [UserInfo](./auth-types.userinfo.md) | User profile information, visible only to the Firebase project's apps. | | [UserMetadata](./auth-types.usermetadata.md) | Interface representing a user's metadata. | ## Type Aliases | Type Alias | Description | | --- | --- | | [NextOrObserver](./auth-types.nextorobserver.md) | Type definition for an event callback. | | [PhoneInfoOptions](./auth-types.phoneinfooptions.md) | The information required to verify the ownership of a phone number. | | [UserProfile](./auth-types.userprofile.md) | User profile used in [AdditionalUserInfo](./auth-types.additionaluserinfo.md). |