import RPi.GPIO as GPIO
import time
import sys
from flask import request
from flask_api import FlaskAPI

app = FlaskAPI(__name__)

led_pin = 21	# Initializing pin 40 for led
GPIO.setmode(GPIO.BCM)	# Using BCM numbering
GPIO.setup(led_pin, GPIO.OUT)	# Declaring the pin 40 as output pin
print("initialized")

@app.route('/',methods=["GET"])
def turn_on_led():
    print("called succesfully")
    GPIO.output(led_pin, True)
    time.sleep(0.2)
    GPIO.output(led_pin, False)
    time.sleep(0.2)
    GPIO.output(led_pin, True)
    time.sleep(0.2)
    GPIO.output(led_pin, False)
    time.sleep(0.2)
    GPIO.output(led_pin, True)
    time.sleep(0.2)
    GPIO.output(led_pin, False)
    return {
    "Response":"alert shown"
        }

if __name__ == "__main__":
    app.run()