# app.py
from flask import Flask, request, jsonify
import redis

import random

my_random_id = random.randrange(100)

r = redis.Redis(host='redis', port=6379)
app = Flask(__name__)

@app.route("/id", methods=["GET"])
def id():
    return f"{my_random_id}\n"

@app.route("/items", methods=["GET", "POST"])
def items():
    if request.method == "POST":
        item = request.json.get("item")
        if item:
            r.rpush("shopping_list", item)
        return '', 204
    else:
        items = r.lrange("shopping_list", 0, -1)
        return jsonify([i.decode() for i in items])

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=5000)