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      Help Center/ IoT/ FAQs/ Secondary Development/ FAQs About Application Development/ Calling APIs
      Updated on 2022-02-24 GMT+08:00
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      Calling APIs

      • Authentication API of the IoT Platform Is Successfully Called Locally But Fails to Be Called on Application Servers
      • Error Occurs When an NA Calls an API
      • Online Application Simulator Fails to Deliver Commands
      • Command Is Successfully Delivered Using the Simulator But Fails to Be Delivered by Calling the API
      • Application Server Fails to Deliver Commands and Receives Error Code 403
      • How Does an Application Server Deliver a Cache Command
      • What Does an Expired Command Mean
      • Does the IoT Platform Support Command Resending
      • What Does a Timeout Command Mean
      • Can the IoT Platform Deliver Commands in Batches
      • Are the APIs of the IoT Platform Called Only Using Java
      • What Are the Command States on the IoT Platform
      • Failed to Call the Calling the Registering Directly Connected Devices API
      • APIs Fail To Be Called After a Period of Time While Parameters Remain Unchanged
      • Commands Fail to Be Sent After a Period of Time While the Previous Commands Are Successfully Sent
      • Historical Data Is Not Returned When the Querying Historical Device Data API Is Called
      • Devices Registered with the IoT Platform Are Deleted After a Period of Time
      Parent topic: FAQs About Application Development

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