Created question in FIWARE Q/A platform on 06-02-2018 at 09:02
Please, ANSWER this question AT https://stackoverflow.com/questions/48638932/send-lora-measures-to-fiware-iot-agent-via-mqtt

Question:
Send LoRa measures to Fiware IOT agent via MQTT

Description:
I have LoRa sensors which send measures with Cayenne LPP format payload.
My Gateway(LOrank8v1) catches these packets and converts them to UDP.
In the gateway there is a service(lora-gateway-bridge) which converts the packets from UDP to TCP/MQTT.

Then the MQTT packets are published to the mosquitto MQTT broker in the cloud.
Then i run lora-server and lora-app-server services in order to decrypt,decode and deduplicate the packets.

Then i publish the decrypted information to the MQTT broker again.
Here is an example of a publication after all these operations:
application/1/node/0000000000000000/rx

{
"applicationID":"1",
"applicationName":"Temperature-Humidity",
"deviceName":"Temperature-Humidity",
"devEUI":"0000000000000 000",
"rxInfo":[

],
"txInfo": {
"frequency":8685 00000,
"dataRate":

,
"adr":false,
"codeRate":"4/5"
},
"fCnt":2,
"fPort":1,
"data":"AGcAxQFojA==",
"object": {
"temperatureSensor":

,
"humiditySensor":

}
}

Now i want to use Fiware's JSON/MQTT IOT agent to convert MQTT to NGSI in order to publish data to the Context Broker.

The data should be publised like this to be readable :

$ mosquitto_pub -h $HOST_IOTAGENT_MQTT -u theUser -P thePassword -t /myapikey/mydevicemqtt/attrs -m '

'

Has anyone the same problem?
Should i make a JSON parser and republish the data to another format into the MQTT Broker?
How could i deal with this problem?