implementing Function Caching in Flask with Flask-Caching 2.0.0
I'm working through a tutorial and I'm having trouble with function caching using Flask-Caching version 2.0.0 in my Flask application. I expected that my route function output would be cached correctly to improve performance, but it seems that the cache is not being utilized as expected, leading to repeated database calls. Here’s the relevant code snippet: ```python from flask import Flask from flask_caching import Cache app = Flask(__name__) app.config['CACHE_TYPE'] = 'SimpleCache' cache = Cache(app) @cache.cached(timeout=60, query_string=True) @app.route('/items/<int:item_id>') def get_item(item_id): # Simulating a database call print('Fetching from database...') return {'item_id': item_id, 'name': f'Item {item_id}'} ``` When I access `/items/1` for the first time, I see the "Fetching from database..." message printed, which indicates that the function is being executed as expected. However, when I go back to `/items/1`, it again fetches from the database instead of using the cached value. I've tried different `timeout` values and various caching types (like `FileSystemCache`), but the behavior remains the same. In my Flask app, I have ensured that the `Flask-Caching` library is correctly installed and that the cache is set up in the configuration. I also verified that the Flask application context is being managed correctly. What could be causing this scenario? Any insights on how to make the caching work properly would be appreciated! This is my first time working with Python 3.11. How would you solve this?