GTWay identity , get it in node red ?

[magouero]

Hello,

Is there a way to get the serial number or the UUID or any unique GTWay number in order to publish on a MQTT topic that includes this number in the path/topic name ?
Using a exe node and using a linux command ?

Thanks

[Jeff Hatch]

Magouero,

You can get the device ID through an HTTP REST request to the API on the device:

http://127.0.0.1/api/system/deviceId

You will get a JSON collection back that looks like:

{
“code” : 200,
“result” : “18587503”,
“status” : “success”
}

The Multitech MTR product has an API that is very similar, and is documented at:

http://www.multitech.net/developer/software/mtr-api-reference/

Jeff

[magouero]

OK.
Thanks but i need to do it FROM node-red in order to get that number and later on publish on a MQTT topic that uses the number in the topic
e.g;: project/gatewayNumber/data-to-be-sent

But using node-red i do not see how .

Any idea ?

EDIT:
i tried using
inject node — http request node –debug node
with
GET method
https://192.168.2.3/api/system/deviceId
and basic authentication with username and password.
JSON

The best answer i get is
{ “code”: 401, “error”: “not logged in”, “status”: “fail” }

Same with http:// (not httpS).
although usename and password are correct.

EDIT2:
using
GET https://192.168.2.3/api/login?username=admin&password=admin
i got success but still cannot get the id of the gateway. I think the token given in the result of last command is to be used somehow but dunno what to do with it.

any other way or idea ?
Thanks

• This reply was modified 8 years, 7 months ago by magouero. Reason: add information after trial
• This reply was modified 8 years, 7 months ago by magouero. Reason: add information after 2nd trial

[Bryan Tran]

Hi magouero,

Try it with: http://127.0.0.1/api/system/deviceId instead with the ipaddress: 192.168.2.3

Thanks,

BT

[magouero]

ah indeed its simpler than what i did:
httpnode for login —>function node to make the request sentence with login and token —-> httpnode to get the id

Thank you Bryan and Jeff

Now i have to use it to configure a mqtt broker having this serial number in its client id. Possible ?

[Véranith LY]

Hello

Thanks for the HTTP hint to retrieve the gateway’s ID (http://127.0.0.1/api/system/deviceId).

In my case, I want to have several gateways setup as packet forwarders and only one hosting the lora network server with Node-RED (on an aep version).

How, from the node-red instance, can I know where an actual LoRa packet comes from (from which gateway) ?

Many thanks

Veranith

[Author]

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