gRPC and Error-Code 3 invalid length while executing CreateDeviceRequest

ChirpStack (v4)
1

Hi Guys,

i don’t have a clue, what issue i am running into. I am trying to add devices to my ChirpStack Applications.

But i am ending up with this error message:
Error: 3 INVALID_ARGUMENT: invalid length: expected length 32 for simple format, found 0

My Code:

// Imports
const grpc = require("@grpc/grpc-js");
const device_grpc = require("@chirpstack/chirpstack-api/api/device_grpc_pb");
const device_pb = require("@chirpstack/chirpstack-api/api/device_pb");

// Create the client for the DeviceService.
const deviceService = new device_grpc.DeviceServiceClient(
    "localhost:8080",
    grpc.credentials.createInsecure(),
);

// Create the Metadata object.
const metadata = new grpc.Metadata();
metadata.set("authorization", "Bearer " + apiToken);

// Device
let ChripStackDevice = new device_pb.Device();
ChripStackDevice.getTagsMap().set('meter_id', 'Nr. 123456');
ChripStackDevice.getTagsMap().set('area_id', '14');
ChripStackDevice.getTagsMap().set('area', 'First Street');
ChripStackDevice.setDescription('Water Meter Nr. 123456 in Area "First Street" #14');
ChripStackDevice.setApplicationId( 4760083592357697419966480933974487906 );
ChripStackDevice.setDeviceProfileId( '286385887245725194742603190578555332218' );
ChripStackDevice.setDevEui('0001020304050607');
ChripStackDevice.setName('Meter-123456');
ChripStackDevice.setSkipFcntCheck(true);
ChripStackDevice.setIsDisabled(false);

// Create Request
let ChripStackCreateDeviceRequest = new device_pb.CreateDeviceRequest();
ChripStackCreateDeviceRequest.setDevice(ChripStackDevice);
deviceService.create( ChripStackCreateDeviceRequest, metadata, (err, resp) => {
	if (err !== null)
	  throw err;
  
	console.log("Device has been added with id: " + resp.getId());
});

Dumped Object and Error Message:

{
  wrappers_: {
    '1': {
      wrappers_: {
        '9': {
          arr_: [
            [ 'area', 'First Street' ],
            [ 'area_id', '14' ],
            [ 'meter_id', 'Nr. 123456' ]
          ],
          valueCtor_: null,
          map_: {
            meter_id: {
              key: 'meter_id',
              value: 'Nr. 123456',
              valueWrapper: undefined
            },
            area_id: { key: 'area_id', value: '14', valueWrapper: undefined },
            area: {
              key: 'area',
              value: 'First Street',
              valueWrapper: undefined
            }
          },
          arrClean: true
        }
      },
      messageId_: undefined,
      arrayIndexOffset_: -1,
      array: [
        '0001020304050607',
        'Meter-123456',
        'Water Meter Nr. 123456 in Area "First Street" #14',
        4.7600835923576974e+36,
        '286385887245725194742603190578555332218',
        true,
        null,
        <1 empty item>,
        [
          [ 'area', 'First Street' ],
          [ 'area_id', '14' ],
          [ 'meter_id', 'Nr. 123456' ]
        ]
      ],
      pivot_: 1.7976931348623157e+308,
      convertedPrimitiveFields_: {}
    }
  },
  messageId_: undefined,
  arrayIndexOffset_: -1,
  array: [
    [
      '0001020304050607',
      'Meter-123456',
      'Water Meter Nr. 123456 in Area "First Street" #14',
      4.7600835923576974e+36,
      '286385887245725194742603190578555332218',
      true,
      null,
      <1 empty item>,
      [
        [ 'area', 'First Street' ],
        [ 'area_id', '14' ],
        [ 'meter_id', 'Nr. 123456' ]
      ]
    ]
  ],
  pivot_: 1.7976931348623157e+308,
  convertedPrimitiveFields_: {}
}
/home/rack/import-zenner.js:41
        throw err;
        ^

Error: 3 INVALID_ARGUMENT: invalid length: expected length 32 for simple format, found 0
    at callErrorFromStatus (/home/rack/node_modules/@grpc/grpc-js/build/src/call.js:31:19)
    at Object.onReceiveStatus (/home/rack/node_modules/@grpc/grpc-js/build/src/client.js:192:76)
    at Object.onReceiveStatus (/home/rack/node_modules/@grpc/grpc-js/build/src/client-interceptors.js:360:141)
    at Object.onReceiveStatus (/home/rack/node_modules/@grpc/grpc-js/build/src/client-interceptors.js:323:181)
    at /home/rack/node_modules/@grpc/grpc-js/build/src/resolving-call.js:94:78
    at processTicksAndRejections (internal/process/task_queues.js:77:11)
for call at
    at ServiceClientImpl.makeUnaryRequest (/home/rack/node_modules/@grpc/grpc-js/build/src/client.js:160:34)
    at ServiceClientImpl.create (/home/rack/node_modules/@grpc/grpc-js/build/src/make-client.js:105:19)
    at Object.<anonymous> (/home/rack/import-zenner.js:38:15)
    at Module._compile (internal/modules/cjs/loader.js:1114:14)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1143:10)
    at Module.load (internal/modules/cjs/loader.js:979:32)
    at Function.Module._load (internal/modules/cjs/loader.js:819:12)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:75:12)
    at internal/main/run_main_module.js:17:47 {
  code: 3,
  details: 'invalid length: expected length 32 for simple format, found 0',
  metadata: Metadata {
    internalRepr: Map(3) {
      'content-type' => [ 'application/grpc' ],
      'content-length' => [ '0' ],
      'date' => [ 'Sat, 08 Apr 2023 18:59:34 GMT' ]
    },
    options: {}
  }
2

Hi,
There is a mandatory field that is not provided.
Maybe you could first try by adding quotes to wrap the AppID (it is an int in your code).

3

oooookay, you pointed me to the right direction. But why is the error message so unclear to the missing / incorrect data provided? There should be more verbose output like “application-id - invalid length - expect 32 for simple format, got 0”

application_id has to be the UUID without the dashes.

The documentation says int64.

4

You are looking at v3 API specification. Please see the v4 API documentation:

https://www.chirpstack.io/docs/chirpstack/api/api.html#api-Device

1 Like
5

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