ESP8266 with Thingworx

#include "ESP8266WiFi.h"
#include<ESP8266HTTPClient.h>
#include "DHT.h"

const char* ssid = "XXXXX";
const char* password = "XXXXXXX";

char server[] = "<<Your trial server URL>>";
char appKey[] = "<<Your Application keys>>";

// ThingWorx  details
char thingName[] = "<<Your thing name>>";
char serviceName[] = "setValue"; //optional
char property1[]="<<poperty name>>";
char property2[]="<<poperty name>>";
#define ACCEPT_TYPE "text/csv"

void setup() {
Serial.begin(115200);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
  {
    delay(1000);
    Serial.print(".");

  }
}

void loop() {
if(WiFi.status() == WL_CONNECTED)
  {
    HTTPClient http;
    String t ="{\"temp\":\"40\"}";
    int a=t.length();
    Serial.println("raj");
    Serial.println(a);
    String URL = String(server)+ "/Thingworx/Things/" + thingName +"/Properties/"+ property1 +"?appKey="+ String(appKey);
    Serial.println(URL);
    http.begin(URL);
     
    http.addHeader("Accept",ACCEPT_TYPE,false,false);
    int httpcode=http.sendRequest("PUT",t);
     Serial.println(httpcode);
    
    if(httpcode > 0)
    {
      String payload = http.getString();
     
      Serial.println(payload);

      String t1="{\"hum\":\"56\"}";
      int a1=t1.length();
      Serial.println(a1);
         String URL = String(server) + "/Thingworx/Things/" + thingName +"/Properties/"+ property2 +"?appKey="+ String(appKey);
         http.begin(URL); 
         http.addHeader("Accept",ACCEPT_TYPE,false,false);
         http.addHeader("Content-Type","application/json",false,false);
         int httpcode=http.sendRequest("PUT",t1);
          if(httpcode > 0)
    {
      String payload = http.getString();
      Serial.println(payload);
    }
    http.end();
      }
      delay(30000);
    }
  }