Flask Complete Masterclass (41 Chapters, 15 Phases)
📌 Covered in this course:
What is Flask? · Installation & Virtualenv · Your First Flask App · Routes & HTTP Methods · Request Data & Responses · Jinja Templates & Inheritance · Static Files · Forms & Flask-WTF · REST API Basics & CRUD APIs · API Validation & Errors · Database Basics & SQLite · SQLAlchemy ORM & Flask-Migrate · Application Factory & Blueprints · Monorepo Architecture · Sessions & Password Hashing · Flask-Login & JWT Auth · Flask Security · Testing Basics & API Testing · Error Handling & Logging · Flask CLI · Background Tasks (Celery/Redis) · Async Flask · Swagger & OpenAPI · Production Servers (Gunicorn) · Docker & Cloud Deployment · Flask Projects & Quiz
Welcome to Our Compiler's Flask Complete Master Course. Flask is Python's most flexible and lightweight WSGI web framework, powering microservices, REST APIs, and full-stack web applications at leading tech companies. This comprehensive 41-chapter bootcamp takes you from initial setups, route configurations, Jinja templates, database ORM modeling, WTForms validation, Application Factory patterns, Blueprints, authentication systems, REST API design, Celery background queues, OpenAPI documentation, to production Gunicorn/Nginx Docker deployments.
🎯 Ready to Start Learning Flask?
Choose where to start: explore foundations, routing, forms, REST APIs, ORM databases, blueprints, auth, celery queues, or deployment:
📚 Master Course Curriculum
Phase 01
Flask Introduction & Prerequisites
01
1. What is Flask?
Flask ante enti? · Flask enduku use chestaru? · Flask vs Django · Flask vs FastAPI · WSGI ante enti? · Microframework meaning
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02
2. Python & Web Prerequisites
Python basics · Variables & Data Types · Functions · Classes & OOP · Virtual environments · Exceptions · JSON · HTTP & REST API basics
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Phase 02
Setup & First App
03
3. Flask Installation
Python installation · Checking Python version · pip · Virtual environment (venv) · Installing Flask · requirements.txt
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04
4. Your First Flask App
app.py · Flask(__name__) · @app.route("/") · View function · Development server · Debug mode · Default port 5000
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Phase 03
Routing & Requests
05
5. Routes
Route ante enti? · @app.route · Static & Dynamic routes · String/int/float URL converters · url_for() · Trailing slash
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06
6. HTTP Methods
GET · POST · PUT · PATCH · DELETE · methods=["GET", "POST"] · Status codes · REST endpoint methods · Method errors
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07
7. Request Data
Request object · Query parameters (request.args) · Form data (request.form) · JSON data (request.get_json()) · Headers & Cookies
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08
8. Responses & JSON
Text response · JSON response (jsonify) · Status codes · Response headers · Redirects (redirect, url_for) · Download responses
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Phase 04
Templates & Static Files
09
9. Jinja Templates
Template ante enti? · templates folder · render_template · Jinja expressions {{ }} · Conditionals {% if %} · Loops {% for %}
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10
10. Template Inheritance
base.html · {% extends %} · {% block %} · {{ super() }} · Header & Content blocks · Reusable layouts · Active nav states
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11
11. Static Files
static folder · CSS & JS files · Images · url_for("static", filename="...") · Favicons · Asset caching · Production assets
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Phase 05
Forms & Validation
12
12. Forms Basics
Form route · GET & POST form · request.form · Reading inputs · Post-Redirect-Get (PRG) pattern · Form errors · Security
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13
13. Flask-WTF & Validation
Flask-WTF · WTForms · Form class · StringField · PasswordField · EmailField · Validators (DataRequired, Email) · CSRF protection
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Phase 06
REST APIs
14
14. REST API Basics
REST API ante enti? · Resource naming · JSON responses · HTTP methods · Status codes · CRUD · API testing with Postman/cURL
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15
15. CRUD REST API
GET all · GET one · POST resource · PUT resource · PATCH resource · DELETE resource · In-memory data · ID generation
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16
16. API Validation & Errors
Validating JSON · Required fields · Marshmallow schemas · Error response format (400, 404, 409, 422) · API versioning · Pagination
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Phase 07
Databases
17
17. SQL & Database Basics
Database ante enti? · SQL basics · Tables, Rows & Columns · Primary Key · Foreign Key · Relationships · Relational vs NoSQL
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18
18. SQLite with Flask
SQLite ante enti? · Connecting database · g object context · Creating tables · Executing parameterized SQL queries · Closing connection
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19
19. SQLAlchemy ORM
ORM ante enti? · Flask-SQLAlchemy · db.Model · Columns · Primary keys · Relationships · db.session CRUD · Queries · Pagination
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20
20. Flask-Migrate
Database migration ante enti? · Flask-Migrate · Alembic overview · Initializing (flask db init) · Migrating (flask db migrate/upgrade)
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Phase 08
Architecture & Blueprints
21
21. Application Factory
Application factory ante enti? · create_app() · Avoiding global app object · Testing configs · Initializing extensions · Circular imports
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22
22. Blueprints
Blueprint ante enti? · Why blueprints are used · Creating blueprint · Route prefix (url_prefix) · Registering blueprints · Modular structure
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23
23. Project Architecture
Package structure · app/__init__.py · extensions.py · config.py · models/ · routes/ · services/ · schemas/ · Recommended layout
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Phase 09
Authentication & Security
24
24. Sessions
Session ante enti? · Secret key · Setting & Reading session values (session["user_id"]) · Logout · Session expiry · Secure cookies
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25
25. Authentication
User registration · Login & Logout · Password hashing (werkzeug.security) · Flask-Login · User loader · @login_required decorator
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26
26. JWT Authentication
JWT ante enti? · Access token & Refresh token · Token creation & validation · Protected API routes · Flask-JWT-Extended
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27
27. Flask Security
Secret key management · Environment variables (.env) · CSRF protection · XSS & SQL injection prevention · HTTPS · CORS · Security headers
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Phase 10
Testing
28
28. Testing Basics
Testing ante enti? · pytest · Test folder · Test client (client.get) · Application context · Fixtures · Assertions · Route testing
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29
29. API & Database Testing
API endpoint tests · POST request tests · Validation tests · Database transaction rollback · Mocking external APIs · CI testing
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Phase 11
Errors, Logging and CLI
30
30. Error Handling
Error types · 404 handler · 500 handler · @app.errorhandler · Exception handlers · JSON error responses · Friendly error pages
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31
31. Logging
Logging ante enti? · Log levels (DEBUG, INFO, WARNING, ERROR) · Log format · File logs · Request logs · Sensitive data masking
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32
32. Flask CLI
Flask command · flask run · flask shell · Custom commands · Click overview · Database init command · Seed command · Admin command
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Phase 12
Background Tasks and Async
33
33. Background Tasks
Background task ante enti? · Long-running tasks · Email sending · Job queues · Celery overview · Redis overview · Worker processes
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34
34. Async Flask
Async views · async def routes · Awaiting async API calls · Flask async vs ASGI · Concurrent requests · Async database drivers
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Phase 13
API Documentation & Quality
35
35. Swagger & OpenAPI
API documentation ante enti? · OpenAPI spec · Swagger UI · Flask-Smorest · Flask-RESTX · Request & Response schemas · Interactive docs
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36
36. API Quality
Resource naming · Status code selection · Consistent JSON responses · Pagination · Filtering & Searching · Rate limiting · Idempotency
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Phase 14
Production Deployment
37
37. Production Server
Why dev server is not for production · WSGI servers · Gunicorn · Waitress · uWSGI · Worker processes · Binding & Timeouts
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38
38. Docker
Docker ante enti? · Dockerfile · Python base image · Virtualenv in container · Installing dependencies · Gunicorn CMD · Docker Compose
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39
39. Cloud Deployment
Deploying Flask · Environment variables · Managed databases · Static file handling · HTTPS & Custom domains · Reverse proxy Nginx · CI/CD
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Phase 15
Projects & Quiz
40
40. Flask Projects
RESTful Blog API · User Auth System · Task Management App · E-commerce API · Microservice Architecture · Capstone Showcase
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41
41. Flask Quiz
Comprehensive Flask Knowledge Check · 30 Multiple Choice Questions · Routes, Templates, Database, Auth, API & Deployment Exam
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