Note NodeMCU

GET_Request.cpp

if (WiFi.status() == WL_CONNECTED)
  {
    HTTPClient http;
    http.begin(mcuEndpoint);
    int httpStatusCode = http.GET();

    if (httpStatusCode > 0)
    {
      String payload = http.getString();
      int result = payload.toInt();
      Serial.print(result);
      if (0 == result)
      {
        Serial.print('-');
        digitalWrite(lamp, HIGH);
        delay(2000);
        digitalWrite(lamp, LOW);
      }
      Serial.println(payload);
    }
    http.end();
  }
  delay(6000);