Python for Backend Development (Flask)
Flask is the premier micro-framework for Python, beloved for its simplicity, flexibility, and lack of boilerplates. While opinionated frameworks like Django force a rigid structure, Flask puts the developer in complete control. In this course, you will transition from basic scripting to architecting enterprise-grade backend APIs. You will master micro-framework philosophies, design REST APIs using Flask-RESTX, integrate relational databases using SQLAlchemy, manage migrations with Flask-Migrate, and write modular applications using the Application Factory Pattern and Blueprints. Every module is grounded in a practical coding project, culminating in a production-ready Capstone Project: Eventora, a secure, multi-tenant event ticket booking API with JWT auth, Pytest integration, and Dockerized deployment.
Web Development Intensive
Curriculum Outcomes
Master Flask's micro-framework architecture, request/response cycle, and Jinja2 template engine
Design fully compliant, self-documenting RESTful APIs using Flask-RESTX namespaces, parsers, and marshalling DTOs
Integrate SQL databases seamlessly using SQLAlchemy ORM, managing schemas, complex relationships, and migrations with Flask-Migrate
Structure production-grade architectures using the Application Factory Pattern and Blueprints for clean separation of concerns
Secure applications using JSON Web Tokens (JWT) and Role-Based Access Control (RBAC)
Implement comprehensive unit and integration testing workflows using Pytest
Package applications inside Docker containers and deploy live API servers with cloud PostgreSQL integrations
Modules
Step-by-step masteryIntroduction to Flask
Writing code that performs in-memory operations is standard, but building a gateway that communicates with the entire internet requires a different paradigm. In this module, you will discover the core micro-framework philosophy of Flask and set up a robust, industry-standard development environment with virtual environments and isolated configurations. You will learn the mechanics of HTTP, mapping dynamic URLs to clean Python views (routing), rendering templates using Jinja2, and handling web requests and client responses. You will apply everything in a hands-on coding project: building a dynamic *Personal Task Organizer* powered by session storage and form integrations.
Building REST APIs
In the modern software landscape, backends must serve client applications on any screen or device. In this module, you will transition to building decoupled, client-agnostic services by designing RESTful APIs. You will learn to integrate the premium `Flask-RESTX` extension to auto-generate Swagger UI documentation. You will master standard HTTP methods (GET, POST, PUT, DELETE), map operations to resources, parse and validate incoming query parameters and payloads using request parsers, and filter and format outgoing database records using Marshalling DTOs (Data Transfer Objects). You will solidify these concepts by building a robust *Contact Book REST API* with fully validated schemas.
Database Integration
Data stored in variables vanishes the moment your application restarts. To build permanent applications, you need persistent database systems. In this module, you will learn to bridge relational databases with Python using the highly optimized `SQLAlchemy` ORM (Object Relational Mapper). You will design complex tables, configure properties and constraints, and model advanced relationships (One-to-Many and Many-to-Many). You will learn to evolve your databases safely as your models change using `Flask-Migrate` schema migrations. Finally, you will master writing transactions and standard database CRUD operations (Create, Read, Update, Delete) to build a relational *Book Catalog API*.
Advanced Flask Patterns
Single-file applications are easy to understand, but they quickly turn into unmaintainable spaghetti code as real-world platforms grow. In this module, you will learn to structure professional-grade backend codebases. You will master the industry-standard Application Factory Pattern to avoid circular dependencies and instantiate isolated Flask objects. You will use Blueprints to partition your application into modular, highly cohesive packages. Finally, you will implement professional configuration management strategy using environment-specific config classes, and build central global error-intercepting systems that transform Python exceptions into standardized, friendly JSON responses. You will apply these structures by refactoring a monolithic codebase into a highly modular *Scalable E-Commerce Backend Skeleton*.
Capstone Project - Eventora Event Management API
In this extensive, highly technical capstone module, you will synthesize every single advanced skill you have gained across the entire course to build and deploy an enterprise-grade application: **Eventora**, a secure, multi-tenant Event Management & Ticketing RESTful API. You will design a multi-model relational schema with Users, Events, and Ticket Bookings. You will implement industry-standard authentication using JSON Web Tokens (JWT) and enforce strict Role-Based Access Control (RBAC) to isolate Attendee and Admin actions. You will write a comprehensive suite of unit and integration tests using `Pytest` to guarantee reliability, wrap the entire environment inside isolated `Docker` containers, and deploy the application to a live cloud platform mapped to a production PostgreSQL database.