Authenticate Users

Creating an authentication token for your user

Generating an Authentication Token

To allow your users to authenticate with our web app through the THNDR SDK, you need to generate an authentication token. This token should be created when the user initiates an action to open the THNDR game (e.g., a button click).

Steps to Generate the Authentication Token:

1. Server-Side Service: The authentication token must be generated server-side to securely handle the API key that we provide. Do not expose the API key on the client-side to avoid security risks.

2. Calling the Authentication Endpoint: Your server should make a POST request to the following endpoint, including the user's metadata:

   POST https://api-sandbox.clinch.gg/v0/wager/operator/create-token

   Request Body:

   {
     "userId": "<userId>",
     "displayName": "<userName>",
     "currency": "<OPTIONAL_USER_CURRENCY>",
     "subOperatorId": "<OPTIONAL_SUB_OPERATOR_ID>"
   }

   • userId: The unique ID of your user.

   • displayName: The display name of the user.

   • currency - Player's wallet currency (read more in Currencies).

   • subOperatorId - Identifies a specific sub-operator under a main operator, enabling separate tracking and reporting across multiple game portals

   Request Header:

   x-operator-id: your_operator_id
   x-api-key: your_api_key

3. Response: Upon successful authentication, the endpoint will return a token in the response:

   Response Example:

   {
     "status": 200,
     "data": {
       "token": "eyJhbGciOiJSUzI1NiIsInR5cC..."
     }
   }

4. Using the Token in the getToken Callback: Once you receive the token in the server response, return this token in the getToken callback of the THNDR SDK. Here's an example:

   async function getToken() {
     const response = await post('https://your-server.com/thndr/login');
     const data = await response.json();
     return data.token;
   }

Token Expiry

Authentication tokens used during SDK initialization are JWTs that expire after 1 hour. If an expired token is passed when opening the game, it will fail to load. To prevent this, it's recommend to generate a fresh token each time the game initializes.

Alternatively, you can decode the token (e.g., using jwt.io) to inspect the exp field and only regenerate when it's close to expiration. However, generating a new token on each game load is the simpler and more robust approach.