Cygnus-Orion subscription endpoint - fiware-orion

Question

What is the best endpoint to subscribe Cygnus to Orion CB for subscription change: /v1/subscribeContext or /v2/subscriptions please?
Tried this, no response:
$(curl localhost:1026/v1/subscribeContext -s -S --header 'Content-Type: application/json' --header 'Accept: application/json' --header 'Fiware-Service: smartGondor' --header 'Fiware-ServicePath: /gardens' -d #- | python -mjson.tool) <<EOF
{
"entities": [
{
"type": "Device",
"isPattern": "false",
"id": "raspiSensorTV"
}
],
"attributes": [
"Temperature Sensor",
"TimeInstant"
],
"reference": "http://localhost:5050/notify",
"duration": "P1M",
"notifyConditions": [
{
"type": "ONCHANGE",
"condValues": [
"Temperature Sensor"
]
}
],
"throttling": "PT1S"
}
EOF
This seems to work, but not sure if its the best way to go, as no observations are received.
$curl -iX POST \
'http://localhost:1026/v2/subscriptions' \
-H 'Content-Type: application/json' \
-H 'fiware-service: smartGondor' \
-H 'fiware-servicepath: /gardens' \
-d '{
"description": "Notify Cygnus of all context changes",
"subject": {
"entities": [
{
"idPattern": ".*",
"type": "Device"
}
]
},
"notification": {
"http": {
"url": "http://cygnus:5050/notify"
},
"attrsFormat": "legacy"
},
"throttling": 5
}'

Answer 1

At the present moment Cygnus doesn't support NGSIv2 notifications so you need to use the NGSIv1 endpoint. You can find more information in this section of Cygnus documentation and this other.