[Home](./index.md) > [@firebase/auth](./auth.md) > [getMultiFactorResolver](./auth.getmultifactorresolver.md) ## getMultiFactorResolver() function Provides a [MultiFactorResolver](./auth.multifactorresolver.md) suitable for completion of a multi-factor flow. Signature: ```typescript export declare function getMultiFactorResolver(auth: Auth, error: MultiFactorError): MultiFactorResolver; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | auth | [Auth](./auth.auth.md) | The auth instance. | | error | [MultiFactorError](./auth.multifactorerror.md) | The [MultiFactorError](./auth.multifactorerror.md) raised during a sign-in, or reauthentication operation. | Returns: [MultiFactorResolver](./auth.multifactorresolver.md)