Question: How to open an account and password for GVP docking login?
Answer: Contact the project leader or GVP administrator, log in to the GVP administrator account, and create a temporary administrator account and password through user management;
Question: How long is the validity period of a token?
Answer: The default validity period is 24 hours, but the GVP server backend can set the validity period, with a maximum of 65535 hours;
Question: Can you provide the link address for interface integration and testing?
Answer: Yes, you can contact the project leader to get in touch with the HDL development engineer to provide it;
Question: How to verify whether the control device is successful?
Answer: 1. First, ensure that the GVP client login is functioning properly, that the device can be controlled normally, and that the GVP client displays normal changes in device status;
Answer: 2. Call the control device interface again. After successful control, call the query device status interface. If the switch status value changes, it indicates that the interface control has been successful;
Question: When calling the interface, it displays an error message indicating "Unable to access" or returns a 404 error?
Answer: 1. The GVP server has not been started normally, or the GVP server IP address does not exist. Please open the GVP client with a browser to confirm whether it can be accessed normally;
Answer: 2. The access to the GVP server may be restricted. Please confirm whether there is any interception by firewalls;
Question: Why is the data returned by a successful API call empty?
Answer: 1. There is no relevant data in the GVP backend yet, but it has been confirmed that the GVP client login can be used normally;
Answer: 2. Incorrect values for request parameters when querying the interface will also result in empty data being returned;
Question: What does it mean when the API call is successful but returns "ReplyCode": "URLInvalid"?
Answer: 1. The GVP server version is not the latest, and it does not support the function of this interface address. Please contact the project leader to update the GVP version;
Answer: 2. The spelling of the interface address is incorrect. Please carefully check and confirm whether the correct interface address is used;
Question: How to obtain the 32-bit key for AES encryption of JSON data in the API call interface?
Answer: Contact the project leader to arrange for an HDL development engineer to provide the necessary information;
Question: Does the data returned after a successful API call need to be decrypted?
Answer: No, there is no need to decrypt the returned data. All successfully returned call interfaces are in plaintext JSON strings; only the request parameters of the encrypted JSON string are required when calling the interface;