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

# Errors

> Thanx uses standard HTTP error codes to communicate the success / failure of a request.

An HTTP 400 Bad Request will always be accompanied by an object containing two
properties: code (see below) and message. The code will remain static though the
associated message may change at any time. Thanx can expand this list at any
time.

| Code                      | Sample Message                                          |
| ------------------------- | ------------------------------------------------------- |
| `BAD_REQUEST`             | "An error occurred."                                    |
| `FORBIDDEN`               | "You do not have access to this resource."              |
| `GENERIC_ERROR `          | "Something went wrong"                                  |
| `RESOURCE_NOT_FOUND`      | "The resource you requested was not found."             |
| `AUTHENTICATION_GENERIC`  | "There was an error authenticating you."                |
| `USER_EMAIL_INVALID`      | "The email entered is invalid."                         |
| `USER_PHONE_INVALID`      | "The phone entered is invalid."                         |
| `USER_NAME_REQUIRED`      | "First and last name are required fields."              |
| `REWARD_ALREADY_USED`     | "This reward has already been used."                    |
| `REWARD_EXPIRED`          | "This reward is no longer valid."                       |
| `REWARD_INAPPLICABLE`     | "Required item not present."                            |
| `REWARD_FRAUDULENT`       | "You appear to have already used one of these rewards." |
| `CARD_GENERIC`            | "Unable to register this card due to an issue at Visa." |
| `CARD_INVALID`            | "This type of card is not accepted."                    |
| `POINTS_EXCHANGE_FAILURE` | "Points exchange has failed."                           |

<RequestExample>
  ```bash Response (401 Unauthorized) theme={null}
  {
    "error": {
      "code": "AUTHENTICATION_GENERIC",
      "message": "There was an error authenticating you."
    }
  }
  ```

  ```bash Response (404 NOT FOUND) theme={null}
  {
    "error": {
      "code": "RESOURCE_NOT_FOUND",
      "message": "The resource you requested was not found."
    }
  }
  ```

  ```bash Response (400 Bad Request) theme={null}
  {
    "error": {
      "code": "USER_EMAIL_INVALID",
      "message": "The email entered is invalid."
    }
  }
  ```
</RequestExample>