How did you design the system using RESTful architecture principles?

When designing a system using RESTful architecture principles in Python, I follow the main principles:

• Resource-oriented: each system entity is represented as a resource with a unique URI.
• Use of standard HTTP methods: GET for retrieving data, POST for creating, PUT/PATCH for updating, DELETE for deleting.
• HTTP status codes: proper use of response codes to reflect the operation result (e.g., 200, 201, 404, 400, 500).
• Statelessness: the server does not store client state between requests.
• Use of data formats such as JSON for data exchange.

Example using Flask:

from flask import Flask, jsonify, request

app = Flask(__name__)

items = {}

@app.route('/items/<int:item_id>', methods=['GET'])
def get_item(item_id):
    item = items.get(item_id)
    if item:
        return jsonify(item), 200
    else:
        return jsonify({'error': 'Not found'}), 404

@app.route('/items', methods=['POST'])
def create_item():
    data = request.get_json()
    item_id = len(items) + 1
    items[item_id] = data
    return jsonify({'id': item_id}), 201

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

This approach ensures simplicity, scalability, and compatibility with clients.