Server Error Handling

When the request fails on the server, it can return a known error for you to interpret to the user and use to log it for better error reporting.

Such errors are represented by the WMTResponseError class, which contains the code and message properties and can be found inside the responseError property of the WMTException class.

Example error handling

// Approve operation with a password
Future<void> approve(WMTOnlineOperation operation, PowerAuthPassword password) async {
  try {
    final auth = PowerAuthAuthentication.password(password);
    await mtoken.operations.authorize(operation, auth);
  } on WMTException catch (e) {
    // process server error, if available
    print("Error: ${e.responseError?.message} (code: ${e.responseError?.code})");
  } catch (e) {
    // unexpected failure
  }
}

Known API Error codes

If the WMTException has a responseError, the code property can contain the following errors:

Read Next

• Language and User-Agent Configuration