Get/Set Network Server configuration in Node-Red

[Albert Beukman]

I am using a Conduit: AEP v1.1.2.

Is there any way to get/set the LoRa Network server configuration – specifically receive window 2 data rate – from the Node-Red environment?

Thanks and kind regards,
Albert.

[Jeff Hatch]

Albert,

You can make an API request to get or set the rx2Datarate. You can use something very similar to the example at

http://www.multitech.net/developer/software/aep/node-red-and-rest-api-cloud-service/

Instead of going to some Xivley or M2X server you will go to localhost (127.0.0.1) and do PUT/GET to api/loraNetwork/lora/rx2Datarate.

Jeff

[Albert Beukman]

Thanks Jeff

The GET works like a treat. I will try the PUT next.

For forum reference, the Node-Red HTTP request node allows for basic authentication, which makes for a very simple flow when retrieving a param. You can also build these credentials up in the header as below.

var vUsername = "username";
var vPassword = "password";
var vHeader = vUsername + ":" + vPassword;

msg.headers = {"Authorization": "Basic " + vHeader.toString('base64') };
msg.method = "GET";
msg.url = "https://127.0.0.1/api/loraNetwork/lora/rx2Datarate";

return msg;


[Albert Beukman]

Jeff;

No cigar yet on the PUT/POST request.

I’ve tried 2 basic approaches without success and posted my results below. I’d appreciate input.

Node-Red setup as Inject-Function-HTTP Request-Debug. Function block setup and Debug output shown below.

Approach 1

var vUsername = "admin";
var vPassword = "password";
var vAuthHeader = vUsername + ":" + vPassword;

var vPayload = {"rx2Datarate" : 10};

msg.headers = {"Authorization": "Basic " + vAuthHeader.toString('base64') };
msg.method = "PUT";
msg.url = "https://127.0.0.1/api/loraNetwork/lora/";
msg.payload = vPayload;

return msg;

Output 1
{ "topic": "", "payload": "{\n \"code\" : 400,\n \"error\" : \"[rx2Datarate] property is not set\",\n \"status\" : \"fail\"\n}\n", "_msgid": "b29428dc.4d6bd8", "headers": { "cache-control": "no-cache", "content-type": "application/json", "transfer-encoding": "chunked", "date": "Mon, 28 Mar 2016 19:28:07 GMT", "server": "rcell" }, "method": "PUT", "url": "https://127.0.0.1/api/loraNetwork/lora/", "statusCode": 400 }

Approach 2

var vPayload = "10";
//Same Auth header construction as approach 1
msg.headers = {"Authorization": "Basic " + vAuthHeader.toString('base64') };
msg.method = "PUT";
msg.url = "https://127.0.0.1/api/loraNetwork/lora/rx2Datarate";
msg.payload = vPayload;

return msg;

Output 2
{ "topic": "", "payload": "{\n \"code\" : 400,\n \"error\" : \"path [loraNetwork] leads to an incompatible element. Path Element Type [OBJECT] Update Data Element Type [NULL]\",\n \"status\" : \"fail\"\n}\n", "_msgid": "afd2e493.502d18", "headers": { "cache-control": "no-cache", "content-type": "application/json", "transfer-encoding": "chunked", "date": "Mon, 28 Mar 2016 19:30:55 GMT", "server": "rcell" }, "method": "PUT", "url": "https://127.0.0.1/api/loraNetwork/lora/rx2Datarate", "statusCode": 400 }

Exchanging the PUT with POST leads to different feedback, but failures nonetheless.

• This reply was modified 8 years, 1 month ago by Albert Beukman. Reason: Pedantic. Fix comment in approach 2
• This reply was modified 8 years, 1 month ago by Albert Beukman. Reason: Fix changed formatting after edit

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