veritatisdoloremque/docs-exp/auth.signinwithemailandpassword.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/auth](./auth.md) &gt; [signInWithEmailAndPassword](./auth.signinwithemailandpassword.md)

## signInWithEmailAndPassword() function

Asynchronously signs in using an email and password.

<b>Signature:</b>

```typescript
export declare function signInWithEmailAndPassword(auth: Auth, email: string, password: string): Promise<UserCredential>;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  auth | [Auth](./auth.auth.md) | The Auth instance. |
|  email | string | The users email address. |
|  password | string | The users password. |

<b>Returns:</b>

Promise&lt;[UserCredential](./auth.usercredential.md)<!-- -->&gt;

## Remarks

Fails with an error if the email address and password do not match.

Note: The user's password is NOT the password used to access the user's email account. The email address serves as a unique identifier for the user, and the password is used to access the user's account in your Firebase project. See also: [createUserWithEmailAndPassword()](./auth.createuserwithemailandpassword.md)<!-- -->.