Update request Error when using API Data Source as Update Action

[inemov]

The error comes when update request is sent from the panel, and it seems returned by the grafana server, not by remote (datasource) server. Below is the error text. Bold shown customized payload.

Request
{"status":500,"statusText":"Internal Server Error","data":{"message":"Query data error","traceID":"00000000000000000000000000000000"},"config":{"method":"POST","url":"api/ds/query","data":{"queries":[{"datasourceId":2,"refId":"A","databaseName":"xxxx","tagId":"HS-201","metric":"MV","value":1}]},"retry":0,"headers":{"X-Grafana-Org-Id":1},"hideFromInspector":false}}

This is Update Request configuration:

This is Request Payload with "Code" option selected:

const payload = {};

elements.forEach((element) => {
  if (!element.value) {
    return;
  }

  payload[element.id] = element.value;
})

/**
 * Data Source payload
 */
return {
  "databaseName": "xxxx",
  "tagId": "HS-201",
  "metric": "MV",
  "value": Number(payload.switch),
};

This is request headers:

This is request payload:

This is response:

[asimonok]

@inemov the problem with the data source. Currently, the panel supports only backend data sources (which query data through the POST /ds/query).

We will add a supporting of frontend data sources in the near future.

As a workaround, you can use custom code for update request

const update = async () => {
  const payload = {};

  elements.forEach((element) => {
    if (!element.value) {
      return;
    }

    payload[element.id] = element.value;
  })

  context.grafana.backendService.post('your request')
};

return update();

[inemov]

Hi @asimonok. Thanks for your investigation!
Glad to hear there is plan to add the feature. Although update request via code is a good temporary workaround, registered datasource has advantage of keeping authentication hidden and credentials safe.