OAuthTokenClient constructor

Implementation

OAuthTokenClient()
    :
      // Assuming API can handle initialization without credentials for OAuth client scenarios
      // Or pass dummy values if needed, but they won't be used for these calls.
      // Alternatively, create a simpler HTTP client here specifically for OAuth.
      apiClient = API(
        hostUrl: AUTH_HOST_URL,
        ua: 'razorpay-dart-oauth@${Razorpay.VERSION}', // Use Razorpay version
        // No keyId/keySecret or oauthToken needed initially for OAuth client
        // Credentials are passed in the request body for token exchange.
      );