Learn FLASK with Real Code Examples

Blog backend with CRUD operations

RESTful API for mobile apps

Authentication server with JWT

E-commerce backend with SQLite/PostgreSQL

Data visualization web dashboard using templates

Ensure Flask version matches Python version

Check for port availability

Verify virtual environment activation

Debug template rendering issues

Handle exceptions with `@app.errorhandler`

Use unittest or pytest for unit tests

Test endpoints with Postman or HTTPie

Mock database connections

Test templates and context variables

Automate tests in CI/CD pipelines

WSGI servers (Gunicorn, uWSGI)

Cloud platforms (AWS, Heroku, Google Cloud)

Docker containerization

Reverse proxy with Nginx or Apache

Serverless deployment via Zappa or AWS Lambda

Python runtime

Flask CLI for management

Postman/Insomnia for API testing

Flask extensions (ORM, Auth, Migrations)

WSGI servers like Gunicorn or uWSGI

Databases (SQLite, PostgreSQL, MySQL)

ORMs (SQLAlchemy, Peewee)

Authentication (Flask-Login, Flask-Security)

Background tasks (Celery, RQ)

Frontend frameworks (React, Vue, Angular)

Leverage Blueprints for modularity

Use extensions for common functionality

Automate testing and deployment

Cache data to reduce DB load

Monitor logs for early issue detection

Managing project structure for large apps

Integrating multiple extensions cleanly

Handling errors and edge cases

Optimizing performance with WSGI servers

Securing web applications