"Error: connect ECONNREFUSED

General
1

I make post request to my api server, post using postman works very well but i can't make post request using node-red, please help need advice

msg.headers = {};
msg.headers={ 
      'Content-Type': 'application/json'
};

msg.method = "POST";
msg.url = "http://myserver:5000/datasensor";

msg.payload = {};
msg.payload = {
    "app_key":"41fd-bf8d-f558ee1cb84e",   
    "batt": raw.Bat,
    "level":raw.Level/100,
    "latitude":"0",
    "longitude":"0",
    "count":raw.fCnt,
    "temperature":"0"
 
  };

return msg;

and i got this error message
"Error: connect ECONNREFUSED http://myserver:5000/datasensor"

2

How is the http request node configured?

3

Hi @E1cid

like this

[{"id":"9f981220.1b5b1","type":"inject","z":"1a419334.cdb3ed","name":"","topic":"","payload":"{\"applicationID\":\"11\",\"applicationName\":\"dragino_lvl_1\",\"deviceName\":\"km5\",\"devEUI\":\"a84041cae1821b9b\",\"rxInfo\":[{\"gatewayID\":\"00800000a0003faa\",\"uplinkID\":\"6b9c8be5-522e-4cf1-bbfd-3bb1caa07a1b\",\"name\":\"gw_pkt\",\"time\":\"2020-06-25T02:31:28.478036Z\",\"rssi\":-116,\"loRaSNR\":-4.8,\"location\":{\"latitude\":0.14822,\"longitude\":117.45399,\"altitude\":145}}],\"txInfo\":{\"frequency\":923200000,\"dr\":2},\"adr\":true,\"fCnt\":220,\"fPort\":2,\"data\":\"DRACiQ==\",\"object\":{\"Bat\":3.5,\"Distance\":649,\"Level\":3051}}","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":310,"y":1440,"wires":[["3e1fb14f.a0ecfe"]]},{"id":"3e1fb14f.a0ecfe","type":"function","z":"1a419334.cdb3ed","name":"Setup Request","func":"var msg;\nvar raw = msg.payload.object;\nmsg.headers = {};\nmsg.headers={ \n      'Content-Type': 'application/json',\n};\n\nmsg.method = \"POST\";\nmsg.url = \"http://myserver:5000/datasensor\";\n// msg.payload = raw;\nmsg.payload = {};\nmsg.payload = {\n    \"app_key\":\"3e20ffbf-c868-41fd-bf8d-f558ee1cb84e\",   \n    \"batt\": raw.Bat,\n    \"level\":raw.Level/100,\n    \"latitude\":\"0\",\n    \"longitude\":\"0\",\n    \"count\":raw.fCnt,\n    \"temperature\":\"0\"\n \n  };\n\nreturn msg;","outputs":1,"noerr":0,"x":520,"y":1440,"wires":[["3fa39d3d.0939a2"]]},{"id":"3fa39d3d.0939a2","type":"http request","z":"1a419334.cdb3ed","name":"","method":"use","ret":"txt","url":"","tls":"","x":790,"y":1440,"wires":[["93581f26.350ee"]]},{"id":"93581f26.350ee","type":"debug","z":"1a419334.cdb3ed","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":1030,"y":1440,"wires":[]}]
4

Screenshot from 2020-07-06 22-43-31
Screenshot from 2020-07-06 22-43-31785×115 7.39 KB

5

It looks to me like your server does not accept/refusing post request with json body from node-red. How was the postman set up?
Try

msg.payload = JSON.stringify(msg.payload);
6

thats make me confused too, i'm using raw json to my post using postman

Screenshot from 2020-07-06 23-30-20
Screenshot from 2020-07-06 23-30-20727×407 22.2 KB

7

I'ts strange as the request works at this test site to https://ptsv2.com/t/7ybmy-1594053283/post

results can be seen here.
https://ptsv2.com/t/7ybmy-1594053283/d/6000863101321216

Maybe there is some strange white space on your api key. Try deleting it and typing it in instead of copy and paste.

8

Ok i'll try it thank you

9

Or maybe node-red only works with https not http, that is right?

10

Hi @E1cid i just realize that i run with old node-red, i try to run it using my new raspberry and it works, the question is if i upgrade the node-red it will delete all my setting? and also i run old version npm too can i upgrade it without erase my node-red setting?

11

I would think that all you would do is back up your flows and settings json. Then when you upgrade if they need to be replaced then you have a copy.

12

Thank you, the problem already solved

13

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