Help Center> IoT Device Management> FAQs> Secondary Development> FAQs About Application Development> Subscription and Push> Invalid Callback Address Occurs When Calling the Subscription API
Updated on 2022-02-24 GMT+08:00

Invalid Callback Address Occurs When Calling the Subscription API

A callback address must contain the public IP address (or domain name), port number, and file path.
  • A correct example is as follows: http://IP:PORT/filePath or http://IP:PORT/.
  • An incorrect example is as follows: http://IP:PORT or http://IP/filePath.

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