# Authentication

These steps are intended for TRADE customers (technical users) to authenticate against ComboBuilder services using API credentials.

Before proceeding, make sure you have your **Client ID** and **Secret Key**. If you don't have them yet, follow the [API Token Generation Guide](/u/trade/user-guide/configuration/user-avatar/api-token-generation.md) first.

1. **Exchange API Credentials for Access & Refresh Tokens**
   * **Endpoint**:

     `POST` [`https://authentication.lsports.eu/identity/resources/auth/v1/api-token`](https://authentication.lsports.eu/identity/resources/auth/v1/api-token)
   * **Headers**:

     `Content-Type: application/json`
   * **Body**:

     `{ "clientId": "<Client ID>", "secret": "<Secret Key>" }`
   * **Response**:

     `{ "expires": "<Thu, 22 May 2025 11:49:22 GMT>", "expiresIn": 1800, "accessToken": "<JWT access token>", "refreshToken": "<Refresh token>" }`
   * **Notes**:
     * accessToken `expiresIn` = 30 minutes.
     * `refreshToken` lives for 7 days.
2. **Refresh the Access Token**
   * **Endpoint**:

     `POST` [`https://authentication.lsports.eu/identity/resources/auth/v2/api-token/token/refresh`](https://authentication.lsports.eu/identity/resources/auth/v2/api-token/token/refresh)
   * **Headers**:

     `Content-Type: application/json`
   * **Body**:

     `{ "refreshToken": "<Previous refreshToken>" }`
   * **Response**:

     `{ "expires": "<Thu, 22 May 2025 11:49:22 GMT>", "expiresIn": 1800, "accessToken": "<JWT access token>", "refreshToken": "<Refresh token>" }`
3. **Use the Access Token**

   For every API call to ComboBuilder backend services, include the latest `accessToken` in the `Authorization` header:

   `Authorization: Bearer <accessToken>`

Remember, the accessToken expires every 30 minutes.


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