> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blobhub.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Google Sign-In

Authenticate a user via Google Sign-In by providing a Google access token.

## **POST** `/auth/google/signin`

### Request Body

| Parameter      | Type   | Required | Description                                     |
| :------------- | :----- | :------- | :---------------------------------------------- |
| `access_token` | string | Yes      | Valid Google OAuth2 access token.               |
| `email`        | string | Yes      | User's email address associated with the token. |
| `name`         | string | Yes      | User's full name.                               |
| `external_id`  | string | Yes      | User's unique Google ID.                        |

### Response

| Parameter       | Type    | Description                                   |
| :-------------- | :------ | :-------------------------------------------- |
| `access_token`  | string  | Short-lived JWT access token for API access.  |
| `refresh_token` | string  | Long-lived JWT refresh token.                 |
| `expires_at`    | integer | Timestamp (ms) when the access token expires. |

### Example

<CodeGroup>
  ```json Request theme={null}
  {
    "access_token": "ya29.a0...",
    "email": "jane@example.com",
    "name": "Jane Doe",
    "external_id": "1234567890"
  }
  ```

  ```json Response theme={null}
  {
    "access_token": "eyJhbGciOiJIUzI1Ni...",
    "refresh_token": "eyJhbGciOiJIUzI1Ni...",
    "expires_at": 1678900000000
  }
  ```
</CodeGroup>