LIFX Toggle Button

/*
 *  HTTP over TLS (HTTPS) example sketch
 *
 *  This example demonstrates how to use
 *  WiFiClientSecure class to access HTTPS API.
 *  We fetch and display the status of
 *  esp8266/Arduino project continuous integration
 *  build.
 *
 *  Created by Ivan Grokhotkov, 2015.
 *  This example is in public domain.
 */

#include <ESP8266WiFi.h>
#include <WiFiClientSecure.h>
#define BUTTON 4
#define LEDRED 15

const char* ssid = "xxxx";
const char* password = "xxxx";

const char* host = "api.lifx.com";
const int httpsPort = 443;

// Use web browser to view and copy
// SHA1 fingerprint of the certificate
bool buttonPressed;
void setup() {
    pinMode(BUTTON, INPUT_PULLUP);
    pinMode(LEDRED, OUTPUT);
      digitalWrite(LEDRED, 1);


  buttonPressed = false;
  Serial.begin(115200);
  Serial.println();
  Serial.print("connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  digitalWrite(LEDRED, 0);
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());

  attachInterrupt(digitalPinToInterrupt(BUTTON), button, FALLING);
}

void button(){
  buttonPressed=true;
  Serial.println("Button has been pressed");

  
  }

void loop() {
  if(buttonPressed){
      digitalWrite(LEDRED, 1);

    
  // Use WiFiClientSecure class to create TLS connection
  WiFiClientSecure client;
  Serial.print("connecting to ");
  Serial.println(host);
  if (!client.connect(host, httpsPort)) {
    Serial.println("connection failed");
    return;
  }



  String url = "/v1/lights/group:Living Room/toggle";
  Serial.print("requesting URL: ");
  Serial.println(url);

  client.print(String("POST ") + url + "?duration=2 HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" +
               "User-Agent: BuildFailureDetectorESP8266\r\n" +
               "Authorization: Bearer XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\r\n" +
               "Connection: close\r\n\r\n");

  Serial.println("request sent");
  while (client.connected()) {
    String line = client.readStringUntil('\n');
    if (line == "\r") {
      Serial.println("headers received");
      break;
    }
  }
  String line = client.readStringUntil('\n');

 
  Serial.println("reply was:");
  Serial.println("==========");
  Serial.println(line);
  Serial.println("==========");
  Serial.println("closing connection");
  buttonPressed=false;
    digitalWrite(LEDRED, 0);

 }else{
    Serial.println("Button not pressed");
  }
delay(100);
Serial.println(digitalRead(BUTTON));
}