All API requests need have the two headers: APP_ID, APP_SECRET.

Android Java Example:

    private static final String APP_ID = "20190307001";
    private static final String APP_SECRET = "123";
    private static final Headers headers;
​
    static {
        headers = Headers.of("APP_ID", APP_ID, "APP_SECRET", APP_SECRET);
    }

BASE_URL: https://api.appinchinaservices.com