telemetry.json

{
	"celsius":  25,
	"farenheit": 75,
	"kelvin": 300
}

uploadTelemetry.js

'use strict';
const fs = require('fs');
const http = require('http');
const delayInMillisecond = 5000;

var body;

//Main loop 
setInterval(() => {
	
	fs.readFile('telemetry.json', (err, data) => {
		if (err) throw err;
		let telemetry = JSON.parse(data);
		
		body = JSON.stringify(telemetry)
		
		console.log(`Sending data to Harvest: ${body}`)
	
		let options = {
		  hostname: "harvest.soracom.io",
		  path: "/",
		  method: "POST",
		  headers: {
			"Content-Type": "application/json",
			"Content-Length": Buffer.byteLength(body)
		  }
		}

		http
		  .request(options, res => {
			let data = ""
			res.on("data", d => {
			  data += d
			})
			res.on("end", () => {
			  console.log(`Sending complete: ${data}`)
			})
		  })
		  .on("error", () => {
			  console.log(`Error sending data: ${console.error}`)
			})
		  .end(body)
	});

}, delayInMillisecond)