added flask

fl-app.py

@@ -0,0 +1,29 @@
+#!/usr/bin/python3
+
+from flask import request
+from flask_api import FlaskAPI
+import RPi.GPIO as GPIO
+
+LEDS = {"green": 16, "red": 18}
+GPIO.setmode(GPIO.BOARD)
+GPIO.setup(LEDS["green"], GPIO.OUT)
+GPIO.setup(LEDS["red"], GPIO.OUT)
+
+app = FlaskAPI(__name__)
+
+@app.route('/', methods=["GET"])
+def api_root():
+    return {
+           "led_url": request.url + "led/(green | red)/",
+             "led_url_POST": {"state": "(0 | 1)"}
+                 }
+  
+@app.route('/led/<color>/', methods=["GET", "POST"])
+def api_leds_control(color):
+    if request.method == "POST":
+        if color in LEDS:
+            GPIO.output(LEDS[color], int(request.data.get("state")))
+    return {color: GPIO.input(LEDS[color])}
+
+if __name__ == "__main__":
+    app.run()