Thingsboard Gateway REST connector fails to initialize

Question

I'm trying to set up the REST connector for Thingsboard IoT Gateway and getting some errors on initialization. My rest.json config is:

{
  "host": "127.0.0.1",
  "port": "5000",
  "SSL": false,
  "mapping": [
    {
      "endpoint": "/sizerdata",
      "HTTPMethods": [
        "POST"
      ],
      "security": {
        "type": "anonymous"
      },
      "converter": {
        "type": "json",
        "deviceNameExpression": "Sizer ${name}",
        "deviceTypeExpression": "default",
        "attributes": [
          {
            "type": "string",
            "key": "serialNumber",
            "value": "${serialNumber}"
          }
        ],
        "timeseries": [
          {
            "type": "integer",
            "key": "cupfill",
            "value": "${cupfill}"
          },
          {
            "type": "integer",
            "key": "packsPerHour",
            "value": "${packsPerHour}"
          },
          {
            "type": "integer",
            "key": "totalFruitPerMinute",
            "value": "${totalFruitPerMinute}"
          }
        ]
      }
    }
  ]
}

When I start the thingsboard-gateway service I get the following errors in the logs:

""2021-12-29 13:09:07" - |ERROR| - [rest_connector.py] - rest_connector - run - 152 - web.Application instance initialized with different loop"
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/thingsboard_gateway/connectors/rest/rest_connector.py", line 150, in run
    self.__run_server()
  File "/usr/lib/python3/dist-packages/thingsboard_gateway/connectors/rest/rest_connector.py", line 143, in __run_server
    web.run_app(self._app, host=self.__config['host'], port=self.__config['port'], handle_signals=False,
  File "/var/lib/thingsboard_gateway/.local/lib/python3.8/site-packages/aiohttp/web.py", line 514, in run_app
    loop.run_until_complete(main_task)
  File "/usr/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
    return future.result()
  File "/var/lib/thingsboard_gateway/.local/lib/python3.8/site-packages/aiohttp/web.py", line 321, in _run_app
    await runner.setup()
  File "/var/lib/thingsboard_gateway/.local/lib/python3.8/site-packages/aiohttp/web_runner.py", line 279, in setup
    self._server = await self._make_server()
  File "/var/lib/thingsboard_gateway/.local/lib/python3.8/site-packages/aiohttp/web_runner.py", line 373, in _make_server
    self._app._set_loop(loop)
  File "/var/lib/thingsboard_gateway/.local/lib/python3.8/site-packages/aiohttp/web_app.py", line 223, in _set_loop
    raise RuntimeError(
RuntimeError: web.Application instance initialized with different loop

I have tried this on an Ubuntu install and a Docker container and I get the same result. Any ideas on why this doesn't work?

Answer 1

It is an issue with aiohttp, it is already fixed in the master branch. You can use the version from the master branch of the gateway repository or wait for the next release.