[Home](./index.md) > [@firebase/auth](./auth.md) > [GoogleAuthProvider](./auth.googleauthprovider.md)
## GoogleAuthProvider class
Provider for generating an an [OAuthCredential](./auth.oauthcredential.md) for [ProviderId.GOOGLE](./auth.providerid.google.md).
Signature:
```typescript
export declare class GoogleAuthProvider extends BaseOAuthProvider
```
Extends: BaseOAuthProvider
## Example 1
```javascript
// Sign in using a redirect.
const provider = new GoogleAuthProvider();
// Start a sign in process for an unauthenticated user.
provider.addScope('profile');
provider.addScope('email');
await signInWithRedirect(auth, provider);
// This will trigger a full page redirect away from your app
// After returning from the redirect when your app initializes you can obtain the result
const result = await getRedirectResult(auth);
if (result) {
// This is the signed-in user
const user = result.user;
// This gives you a Google Access Token.
const credential = provider.credentialFromResult(auth, result);
const token = credential.accessToken;
}
```
## Example 2
```javascript
// Sign in using a popup.
const provider = new GoogleAuthProvider();
provider.addScope('profile');
provider.addScope('email');
const result = await signInWithPopup(auth, provider);
// The signed-in user info.
const user = result.user;
// This gives you a Google Access Token.
const credential = provider.credentialFromResult(auth, result);
const token = credential.accessToken;
```
## Constructors
| Constructor | Modifiers | Description |
| --- | --- | --- |
| [(constructor)()](./auth.googleauthprovider._constructor_.md) | | Constructs a new instance of the GoogleAuthProvider class |
## Properties
| Property | Modifiers | Type | Description |
| --- | --- | --- | --- |
| [GOOGLE\_SIGN\_IN\_METHOD](./auth.googleauthprovider.google_sign_in_method.md) | static | (not declared) | Always set to [SignInMethod.GOOGLE](./auth.signinmethod.google.md). |
| [PROVIDER\_ID](./auth.googleauthprovider.provider_id.md) | static | (not declared) | Always set to [ProviderId.GOOGLE](./auth.providerid.google.md). |
## Methods
| Method | Modifiers | Description |
| --- | --- | --- |
| [credential(idToken, accessToken)](./auth.googleauthprovider.credential.md) | static | Creates a credential for Google. At least one of ID token and access token is required. |
| [credentialFromError(error)](./auth.googleauthprovider.credentialfromerror.md) | static | Used to extract the underlying [OAuthCredential](./auth.oauthcredential.md) from a [AuthError](./auth.autherror.md) which was thrown during a sign-in, link, or reauthenticate operation. |
| [credentialFromResult(userCredential)](./auth.googleauthprovider.credentialfromresult.md) | static | Used to extract the underlying [OAuthCredential](./auth.oauthcredential.md) from a [UserCredential](./auth.usercredential.md). |