Created question in FIWARE Q/A platform on 12-07-2019 at 12:07
Please, ANSWER this question AT https://stackoverflow.com/questions/57004964/lorawan-iot-agent-commands-not-properly-forwarded

Question:
LoRaWAN IoT Agent commands not properly forwarded

Description:
I'm working on WSN prototype using FIWARE to retrieve measurements from sensors and send commands back to actuators.

I am using Orion as context broker, LoRaWAN IoT Agent for south and north bounds, other components that are not relevant to this issue.

I am running all components on docker compose.

I was able to subscribe to MQTT topic and publish data using MQTT.fx to simulate the data traffic coming from the sensors to Orion CB passing by IoT Agent.

the IoT agent successfully received the message and forwarded it to Orion; I can clearly see the updated value of the attribute in Orion.

To this point, everything is working just fine, now I want to send commands back to actuators, I have followed this tutorial! step by step I could see the command value being updated in Orion when I update it but I wasn't able to know whether the command was sent back to the actuator through the agent.

I have registered the agent as a context provider, as explained in the tutorial.

curl -iX POST \
'http://localhost:1026/v2/registrations' \
-H 'Content-Type: application/json' \
-H 'fiware-service: agriculture' \
-H 'fiware-servicepath: /irrigation' \
-d '{
"description": "Pump Commands",
"dataProvided": {
"entities": [

{ "id": "urn:ngsi-ld:tempHumid:001", "type": "tempHumid" }

],
"attrs": [ "on", "off" ]
},
"provider": {
"http":

{"url": "http://orion:1026/v1"}

,
"legacyForwarding": true
}
}'

and update the value of the command,

curl -iX PATCH \
'http://localhost:1026/v2/entities/urn:ngsi-ld:tempHumid:001/attrs' \
-H 'Content-Type: application/json' \
-H 'fiware-service: agriculture' \
-H 'fiware-servicepath: /irrigation' \
-d '{
"on":

{ "type" : "command", "value" : "ONN" }

}'

Log from ORION

fiware-orion | INFO@10:26:33 logMsg.h[1874]: Transaction ended
fiware-orion | INFO@10:26:42 logMsg.h[1844]: Starting transaction from 172.18.1.1:57492/v2/entities/urn:ngsi-ld:tempHumid:001/attrs
fiware-orion | INFO@10:26:42 rest.cpp[885]: Service Path 0: '/irrigation'
fiware-orion | INFO@10:26:42 connectionOperations.cpp[239]: Database Operation Successful (count: { _id.id: "urn:ngsi-ld:tempHumid:001", _id.servicePath:

{ $in: [ /^/irrigation$/ ] }

})
fiware-orion | INFO@10:26:42 connectionOperations.cpp[94]: Database Operation Successful (query: { _id.id: "urn:ngsi-ld:tempHumid:001", _id.servicePath:

{ $in: [ /^/irrigation$/ ] }

})
fiware-orion | INFO@10:26:42 connectionOperations.cpp[94]: Database Operation Successful (query: { $or: [ { entities.id: "urn:ngsi-ld:tempHumid:001", $or: [

{ entities.type: "tempHumid" }

, { entities.type:

{ $exists: false }

} ], entities.isPattern: "false", entities.isTypePattern:

{ $ne: true }

, expiration:

{ $gt: 1562927202 }

, status:

{ $ne: "inactive" }

, servicePath:

{ $in: [ /^$|^/#$|^/irrigation/#$|^/irrigation$/, null ] }

}, { entities.isPattern: "true", entities.isTypePattern:

{ $ne: true }

, expiration:

{ $gt: 1562927202 }

, status:

{ $ne: "inactive" }

, servicePath:

{ $in: [ /^$|^/#$|^/irrigation/#$|^/irrigation$/, null ] }

, $where: function(){for (var i=0; i < this.entities.length; i++)

{if (this.enti... }, { entities.isPattern: "false", entities.isTypePattern: true, expiration: { $gt: 1562927202 }, status: { $ne: "inactive" }, servicePath: { $in: [ /^$|^/#$|^/irrigation/#$|^/irrigation$/, null ] }, $where: function(){for (var i=0; i < this.entities.length; i++) {if (this.enti... }

, { entities.isPattern: "true", entities.isTypePattern: true, expiration:

{ $gt: 1562927202 }

, status:

{ $ne: "inactive" }

, servicePath:

{ $in: [ /^$|^/#$|^/irrigation/#$|^/irrigation$/, null ] }

, $where: function(){for (var i=0; i < this.entities.length; i++)

{if (this.enti... }

] })
fiware-orion | INFO@10:26:42 connectionOperations.cpp[449]: Database Operation Successful (update: <{ _id.id: "urn:ngsi-ld:tempHumid:001", _id.type: "tempHumid", _id.servicePath:

{ $in: [ /^/irrigation$/ ] }

}, { $set: { attrs.on:

{ value: "ONN", type: "command", mdNames: [], creDate: 1562918839, modDate: 1562927202 }

, modDate: 1562927202, lastCorrelator: "8ae2258a-a48f-11e9-baf2-0242ac120106" }, $unset:

{ location: 1, expDate: 1 }

}>)
fiware-orion | INFO@10:26:42 logMsg.h[1874]: Transaction ended

Querying orion after patch

{"id":"urn:ngsi-ld:tempHumid:001","type":"tempHumid","TimeInstant":{"type":"DateTime","value":"2019-07-11T18:01:53.00Z","metadata":{}},"deviceState":{"type":"Text","value":" ","metadata":{}},"off_info":{"type":"commandResult","value":" ","metadata":{}},"off_status":{"type":"commandStatus","value":"UNKNOWN","metadata":{}},"on":{"type":"command","value":"ONN","metadata":{}},"on_info":{"type":"commandResult","value":" ","metadata":{}},"on_status":{"type":"commandStatus","value":"UNKNOWN","metadata":{}}}

nothing was reported in the log of the IoT agent.

I suppose that I may be able to see something when the command is pushed back to the actuator through the MQTT.fx or in Loraserver as a packet being transmitted.

Thank you!