I'm trying to create a two line chart this tutorial . My flow looks like this: [image] The response from the rest API is this: {"201201/tempUoTwoBalco": {"value": 62.98999786376953, "route": "/vui/platforms/benshome/devices/201201/tempUoTwoBalco", "writable": false}, "201201/tempUoThreeBalco": {…

I would first try to fix the source of the NaN. If you can not do that then you would output a utf-8 string from the http node. Then you could replace the NaN with a suitable value. Then use JSON.parse() to convert back to an object. [{"id":"f2a105a1.b216","type":"inject","z":"c791cbc0.84f648","n…

Try this you where not using msg.payload or the value. var supplyTemp = {}; var returnTemp = {}; supplyTemp.payload = msg.payload["201201/tempUoThreeBalco"].value; supplyTemp.topic = 'Line1'; returnTemp.payload = msg.payload["201201/tempUoTwoBalco"].value; returnTemp.topic = 'Line2'; return […

[image] E1cid: var supplyTemp = {}; var returnTemp = {}; Any chance you could give me a javascript tip for what you are describing? I am somewhat a newbie var data = { "201201/tempUoTwoBalco": {"value": 63.1199951171875, "route": "/vui/platforms/benshome/devices…

[image] E1cid: return [[supplyTemp,returnTemp]]; [bbartling] javascript loop through API response json data javascript, node-red asked by bbartling on 05:04PM - 17 Dec 21 UTC

var data = { "201201/tempUoTwoBalco": {"value": 63.1199951171875, "route": "/vui/platforms/benshome/devices/201201/tempUoTwoBalco", "writable": false}, "201201/tempUoThreeBalco": {"value": 74.12999725341797, "route": "/vui/platforms/benshom…

Thanks for posting the full flow... Curious to ask if I connect this to a chart, is there anything I need to configure on the chart to make it plot the data? Would you have any tips to debug the output of the function to see why the chart isnt populating any data? There's no errors, I do get this 1…

the http node I do have return set on the drop down to a parsed json object If the NaN does not let the http node parse properly, would you know any work arounds or how to investigate further?

[image] E1cid: [{"id":"f2a105a1.b216","type":"inject","z":"c791cbc0.84f648","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"{ \"201201/tempUoTwoBalco\": { \"value\": 63.1199951171875, \"rout…

Two line chart from HTTP request

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E1cid 17 December 2021 20:07 7

Hard to see any setting in the images. Or read the code.
The http node is outputting a string you need to set it to output on parse json object. Or the the NaN in the returned payload is not letting the http node parse the data.
My last function should feed into chart node with no issues.

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Two line chart from HTTP request

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