Created question in FIWARE Q/A platform on 05-01-2022 at 07:01
Please, ANSWER this question AT https://stackoverflow.com/questions/70588960/orion-ld-issues-no-notification-send-to-subscription

Question:
Orion-LD issues no notification send to subscription

Description:
My setup is:

The Things Network (LoraWAN)
IoT Agent for LoraWAN supporting TTN and NGSI-LD GitHub
Orion-LD
Quantumleap + cratedb

Provision of the sensor to the IoT Agent
curl -iL -X POST \
localhost:4041/iot/devices \
-H 'Content-Type: application/json' \
-H 'Accept: application/json' \
-H 'fiware-service: openiot' \
-H 'fiware-servicepath: /' \
-d '{
"devices": [
{
"device_id": "eui-70b3d57ed004a537",
"entity_name": "urn:ngsi-ld:TemperatureSensor:temperaturesensor001",
"entity_type": "LoraDevice",
"timezone": "Europe/Athens",
"attributes": [
{
"object_id": "temperature_3",
"name": "temperatureCh3",
"type": "Float",
"metadata": {"unitCode": {"type": "Property","value": "CEL"}}
},
{
"object_id": "temperature_5",
"name": "temperatureCh5",
"type": "Float",
"metadata": {"unitCode": {"type": "Property","value": "CEL"}}
}
],
"internal_attributes": {
"lorawan": {
"application_server":

{ "host": "eu1.cloud.thethings.network", "username": "XXXX@ttn", "password": "XXXX", "provider": "TTN" }

,
"dev_eui": "XXXXX",
"app_eui": "XXXXXX",
"application_id": "XXXXXX@ttn",
"application_key": "XXXXXX",
"data_model": "application_server"
}
},
"protocol": "LORAJSON"
}
]
}'

I successfully receive data from the TTN Network (Simulation of sensor at TTN->IoTAgent->Orion-LD)
curl -X GET 'http://localhost:1026/ngsi-ld/v1/entities/?type=LoraDevice' \
-H 'fiware-service: openiot' \
-H 'fiware-servicepath: /' \
-H 'Link: <http://context/ngsi-context.jsonld&gt;; rel="http://www.w3.org/ns/json-ld#context&quot;; type="application/ld+json"' \
-H 'Accept: application/json' |jq .

[
{
"id": "urn:ngsi-ld:TemperatureSensor:temperaturesensor001",
"type": "LoraDevice",
"temperatureCh3":

{ "type": "Property", "value": 27.2, "observedAt": "2022-01-04T18:54:14.447Z", "unitCode": "CEL" }

,
"temperatureCh5":

{ "type": "Property", "value": 25.5, "observedAt": "2022-01-04T18:54:14.447Z", "unitCode": "CEL" }

}
]

I use the following curl to create a new subscription to the Orion-LD
curl -L -X POST 'http://localhost:1026/ngsi-ld/v1/subscriptions/' \
-H 'Content-Type: application/ld+json' \
-H 'NGSILD-Tenant: openiot' \
--data-raw '{
"description": "Notify me of all changes",
"type": "Subscription",
"entities": [

{"type": "LoraDevice"}

],
"notification": {
"attributes": ["temperatureCh3"],
"format": "normalized",
"endpoint":

{ "uri": "http://quantumleap:8668/v2/notify", "accept": "application/json" }

},
"@context": "http://context/ngsi-context.jsonld&quot;
}'

and verify that i have create the subscription
curl -X GET 'http://localhost:1026/ngsi-ld/v1/subscriptions/' \
-H 'NGSILD-Tenant: openiot'|jq .

{
"id": "urn:ngsi-ld:Subscription:61d53fc5fb688acae04cd92f",
"type": "Subscription",
"description": "Notify me of all changes",
"entities": [

{ "type": "LoraDevice" }

],
"notification": {
"attributes": [
"temperatureCh3"
],
"format": "normalized",
"endpoint":

{ "uri": "http://quantumleap:8668/v2/notify", "accept": "application/json" }

},
"@context": "http://context/ngsi-context.jsonld&quot;
}
]

Send new measurement (Orion-LD log: Servicing NGSI-LD request 006: POST /ngsi-ld/v1/entityOperations/upsert/), check that the Orion-LD has the new data, but no notification send to the quantumleap
[
{
"id": "urn:ngsi-ld:TemperatureSensor:temperaturesensor001",
"type": "LoraDevice",
"temperatureCh3":

{ "type": "Property", "value": 27.3, "observedAt": "2022-01-05T06:53:17.572Z", "unitCode": "CEL" }

,
"temperatureCh5":

{ "type": "Property", "value": 25.5, "observedAt": "2022-01-05T06:53:17.572Z", "unitCode": "CEL" }

}
]

I have spend some time changing the subscription request but with no success.
Is something wrong with my subscription request?
Using MongoDB Compass here is the context of the DB
orion-openiot.entities
{
"_id":

{ "id": "urn:ngsi-ld:TemperatureSensor:temperaturesensor001", "type": "https://ngsi-ld-tutorials.readthedocs.io/en/latest/datamodels.html#loraSensors", "servicePath": "/" }

,
"attrNames": &quot;https://ngsi-ld-tutorials.readthedocs.io/en/latest/datamodels.html#temperature1&quot;, &quot;https://ngsi-ld-tutorials.readthedocs.io/en/latest/datamodels.html#temperature2&quot;,
"attrs": {
"https://ngsi-ld-tutorials=readthedocs=io/en/latest/datamodels=html#temperature1&quot;: {
"value": 27.3,
"type": "Property",
"md": {
"unitCode":

{ "value": "CEL" }

,
"observedAt":

{ "value": 1641365597.572 }

},
"mdNames": ["unitCode", "observedAt"],
"creDate": 1641365539.6579854,
"modDate": 1641365597.5791261
},
"https://ngsi-ld-tutorials=readthedocs=io/en/latest/datamodels=html#temperature2&quot;: {
"value": 25.5,
"type": "Property",
"md": {
"unitCode":

{ "value": "CEL" }

,
"observedAt":

{ "value": 1641365597.572 }

},
"mdNames": ["unitCode", "observedAt"],
"creDate": 1641365539.6579854,
"modDate": 1641365597.5791261
}
},
"creDate": 1641365441.9127274,
"modDate": 1641365597.5791261,
"lastCorrelator": ""
}

orion-openiot.csubs
{
"_id": "urn:ngsi-ld:Subscription:61d53fc5fb688acae04cd92f",
"expiration": 2147483647,
"reference": "http://quantumleap:8668/v2/notify&quot;,
"custom": false,
"mimeType": "application/json",
"throttling": 0,
"servicePath": "/",
"description": "Notify me of all changes",
"status": "active",
"entities": [

{ "id": "", "isPattern": "", "type": "https://ngsi-ld-tutorials.readthedocs.io/en/latest/datamodels.html#loraSensors", "isTypePattern": false }

],
"attrs": &quot;https://ngsi-ld-tutorials.readthedocs.io/en/latest/datamodels.html#temperature1&quot;,
"metadata": [],
"blacklist": false,
"ldContext": "http://context/ngsi-context.jsonld&quot;,
"createdAt": 1641365445.068897,
"modifiedAt": 1641365445.068897,
"conditions": [],
"expression":

{ "q": "", "mq": "", "geometry": "", "coords": "", "georel": "", "geoproperty": "" }

,
"format": "normalized"
}