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# Import required modules

import json

import os

from quart import Quart, request, jsonify

from quart_cors import cors

# Create a Quart app and enable CORS

app = Quart(__name__)

app = cors(app)

# Retrieve the service authentication key from the environment variables

SERVICE_AUTH_KEY = os.environ.get("SERVICE_AUTH_KEY")

# Initialize an empty dictionary to store todos

TODOS = {}

# Add a before_request hook to check for authorization header

@app.before_request

def auth_required():

# Get the authorization header from the request

auth_header = request.headers.get("Authorization")

# Check if the header is missing or incorrect, and return an error if needed

if not auth_header or auth_header != f"Bearer {SERVICE_AUTH_KEY}":

return jsonify({"error": "Unauthorized"}), 401

# Define a route to get todos for a specific username

@app.route("/todos/<string:username>", methods=["GET"])

async def get_todos(username):

# Get todos for the given username, or return an empty list if not found

todos = TODOS.get(username, [])

return jsonify(todos)

# Define a route to add a todo for a specific username

@app.route("/todos/<string:username>", methods=["POST"])

async def add_todo(username):

# Get the request data as JSON

request_data = await request.get_json()

# Get the todo from the request data, or use an empty string if not found

todo = request_data.get("todo", "")

# Add the todo to the todos dictionary

TODOS.setdefault(username, []).append(todo)

return jsonify({"status": "success"})

# Define a route to delete a todo for a specific username

@app.route("/todos/<string:username>", methods=["DELETE"])

async def delete_todo(username):

# Get the request data as JSON

request_data = await request.get_json()

# Get the todo index from the request data, or use -1 if not found

todo_idx = request_data.get("todo_idx", -1)

# Check if the index is valid, and delete the todo if it is

if 0 <= todo_idx < len(TODOS.get(username, [])):

TODOS[username].pop(todo_idx)

return jsonify({"status": "success"})

# Run the app

if __name__ == "__main__":

app.run(debug=True, host="0.0.0.0")