Why does my " +IPD,<len>: " AT command executes only once even if placed in void loop() ?

I want to run all AT commands through Arduino Code over the Serial Monitor,and want to fetch data using a Thingspeak Key.

My other AT commands execute well periodically as needed in void loop(), but whenever I place the " +IPD,<len>: " AT command into void loop(), the loop() function runs only once and stops.

Need help in fixing this problem. Reply as soon as you can.

My UNO Code is as follows :

#include <LiquidCrystal.h>

#include <SoftwareSerial.h>

// We'll use a software serial interface to connect to ESP8266

SoftwareSerial ESP8266 (8,9); //rx=8,connected to 9 of arduino. tx=9, connected to 8 of arduino

LiquidCrystal lcd(12,11,5,4,3,2);

String inData;

void setup()

{

Serial.begin(9600);

ESP8266.begin(9600);

lcd.begin(16,2);

delay(1000); // Let the module self-initialize

ESP8266.println("AT");

while(ESP8266.available())

Serial.write(ESP8266.read());

lcd.print("OK");

lcd.clear();

delay(1500);

lcd.setCursor(0,0);

ESP8266.println("AT+CWJAP?");

while(ESP8266.available())

delay(2000);

Serial.write(ESP8266.read());

}

void loop()

{

delay(2500);

ESP8266.println("AT+CIPSTART=\"TCP\",\"api.thingspeak.com\",80\r\n");

while(ESP8266.available())

delay(1500);

Serial.write(ESP8266.read());

delay(1000);

ESP8266.println("AT+CIPSEND=50\r\n");

while(ESP8266.available())

Serial.write(ESP8266.read());

delay(1500);

boolean b = Serial.find(">");

if(b)

{

String hostt = "GET /apps/thinghttp/send_request?api_key=689WYA85WW1VJSBA";

hostt += "\r\n";

hostt += "Host:api.thingspeak.com";

hostt += "\r\n\r\n\r\n\r\n\r\n\r\n";

ESP8266.println(hostt);

delay(3000);

}

ESP8266.print("+IPD,12:");

delay(1500);

String inData = ESP8266.readString();

Serial.write(ESP8266.read());

/*.....................Fetching Data Needed..................*/

int i = ':';

while (inData.charAt(i) != ':') // Character before required data starts.

i++;

inData = inData.substring(i);

int j = 0;

while (inData.charAt(j) != 'C') // Character after required data ends.

j++;

inData = inData.substring(0, j);

Serial.print(inData);

delay(3000);

delay(5000);

ESP8266.println("AT+CIPCLOSE\r\n");

while(ESP8266.available())

Serial.write(ESP8266.read());

delay(4000);

}