A Flask extension that adds SQLAlchemy ORM support for easy database management.

A function that handles the logic for a specific route and returns a response.

Set app.run(debug=True) or FLASK_ENV=development in environment.

Use the @app.route('/path') decorator above a view function.

No, Flask is a microframework, focusing only on backend with optional components.

A way to store data across requests for a user using secure cookies.

Renders HTML templates using Jinja2, passing variables to dynamically generate pages.

Serve static files like CSS and JS from the static/ folder by default.

Use libraries like SQLAlchemy or SQLite with connection setup in Flask configuration.

Use return jsonify(data) to send a JSON response to the client.

An object containing incoming HTTP request data like form inputs and headers.

A way to organize Flask apps into reusable, modular components or packages.

Jinja2 is Flask’s templating engine for embedding Python-like code into HTML.

Generates URLs for routes dynamically, avoiding hardcoded paths.

It creates a Flask application object, using the current module's name for reference.

A route maps a URL path to a specific function (view) in the app.

Using request.form to access submitted data and libraries like WTForms for validation.

Use @app.errorhandler() decorators to define custom error responses.

Flask is a lightweight Python web framework for building web applications quickly and flexibly.

Enables auto-reload on code changes and detailed error messages for development.

Add-on packages that provide additional features like authentication, database, and form handling.

Lightweight, modular, built-in server, Jinja2 templating, URL routing, and WSGI support.

HTML templates are stored in the templates/ folder and rendered using render_template.

Set FLASK_APP=app.py and run flask run in terminal.

A global namespace for storing data during a request, accessible across functions.