Meet the most simple enterprise IoT platform

 #include <SPI.h>
 #include <Ethernet.h>
 #include <thethingsiO.h>
 #define TOKEN 'your token here'

 thethingsiOEthernet thing(TOKEN);
 void setup() { startEthernet(); }

 void loop() {
     Ethernet.maintain();
     int temperature = analogRead(A0);
     thing.addValue('Temperature', temperature);
     thing.send();
     delay(1000);
 }

 void startEthernet() {
     // Local Network Settings
     byte mac[] = { 0xD4, 0x28, 0xB2, 0xFF, 0xA0, 0xA1 }; // Must be unique on local network
     // Connect to network and obtain an IP address using DHCP
     while (!Ethernet.begin(mac));
 }

// npm install thethingsio-api

var theThingsAPI = require('thethingsio-api');

var client = theThingsAPI.createClient();
// Or client = theThingsAPI.createSecureClient() for https

client.on('ready', function () {
   client.thingRead('temperature', {limit:1}, function (error, data) {
       console.log(error ? error : data);
   });
});