Receive device status via websocket

Answered

Jackson

April 23, 2025 21:14

Is there a way to receive device updates and status via websocket on the NX mediaserver? We would like to receive events such as camera offline/online, camera added to system, deleted from system, camera updates such as name changes, etc. I looked through the documentation and could not find this. 

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• 

  Sergey Yuldashev

  • Network Optix team

  April 24, 2025 13:36

  Hi Jackson ,

  Please refer to the description of json-rpc mechanism supported by the Media Server:

  https://meta.nxvms.com/doc/developers/api-tool/json-rpc

  It effectively allows you to subscribe to any changes within the selected namespace converted from the given REST API method.

  There is also a method to gather information about all the devices in the current system:

  https://meta.nxvms.com/doc/developers/api-tool/rest-v3-devices-get

  Thus, converting this method info into the expected json-rpc message:

  {"jsonrpc": "2.0", "id": 0, "method": "rest.v3.devices.list.subscribe", "params": {}}

  You might want to modify the “params” value based on what you would like the feed to look like.

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