TTN flow, empty measure on Orion

[filgiuff]

I've registered a real device on The things network , it sends measures and I see them on the app server TTN:

{
  "barometric_pressure_2": 1073.2,
  "gps_3": {
    "altitude": 2,
    "latitude": 52.3736,
    "longitude": 4.8865
  },
  "luminosity_4": 1018,
  "temperature_1": 27.2
}

I've tried to do the provisioning of this device on the IoTagent-LoRaWAN:

 {
    "devices": [{
        "device_id": "fake_device14",
        "entity_name": "LORA-DEVICE14",
        "entity_type": "LoraDevice",
        "timezone": "America/Santiago",
        "attributes": [{
                     "object_id": "t1",
                     "name": "temperature_1",
                    "type": "number"
                 }],
        "internal_attributes": {
            "lorawan": {
                "application_server": {
                    "host": "eu.thethings.network",
                    "username": "XXXXXXXX",
                                     "password": "YYYYYYYYYYYY",
                    "provider": "TTN"
                },
                "app_eui": "JJJJJJJJJJJJJJJJJ",
                "application_id": "XXXXXXXX",
                "application_key": "KKKKKK",
                "data_model": "cayennelpp",
                "dev_eui": "ZZZZZZZZZZ"
            }
        }
    }]
}

it creates the entity on Orion and the Mqtt topic is subscribed correctly:

 iotagent-lora_1  | {"timestamp":"2019-05-07T15:25:41.692Z","level":"info","message":"Subscribing to MQTT topic:XXXXXXXX/devices/fake_device14/up"}
iotagent-lora_1  | {"timestamp":"2019-05-07T15:25:41.693Z","level":"info","message":"Mqtt topic subscribed:XXXXXXXX/devices/fake_device14/up"}

But the value of the measure is empty

[
    {
        "id": "LORA-DEVICE14",
        "type": "LoraDevice",
        "TimeInstant": {
            "type": "DateTime",
            "value": "2019-05-07T15:35:45.00Z",
            "metadata": {}
        },
        "temperature_1": {
            "type": "number",
            "value": " ",
            "metadata": {}
        }
    }
]

[dcalvoalonso]

Some questions to try to understand where is the problem:

• In the log of the IoT Agent, does it include a line with Connected to MQTT server?
• After having published a message in TTN, does the agent log include a line saying New message in topic?

[filgiuff]

1) Yes. There is it.

...
iotagent-lora_1  | {"timestamp":"2019-05-07T15:13:48.535Z","level":"info","message":"Connected to MQTT server"}
iotagent-lora_1  | {"timestamp":"2019-05-07T15:13:48.536Z","level":"info","message":"Application started."}
...

2) No. There isnt't this line on the agent log.

[dcalvoalonso]

Could you please share the raw message as it is sent by the device (Base64)?

[filgiuff]

here it is

01670110027329EC046503FA038807FDD800BEE10000C8

[dcalvoalonso]

I checked the payload and the IoT agent is able to process it correctly. Therefore the error must be in the connection between the TTN server and the IoT Agent.

[dcalvoalonso]

The problem was that the device_id used in the device provisioning did not match the actual device_id used by TTN.

[filgiuff]

The problem was that the value of "device_id" on the provisioning payload must be the same of the TTN server. Now I have the correct value. Thanks