IntermediateApplied5 weeks

Backend Frameworks

Use backend frameworks to structure routing, middleware, validation, controllers, services, and dependency boundaries.

Topic 10 of 24

Prerequisites

API Development
Backend Language Selection

Key Concepts & Skills

Express.js
NestJS
Django
Spring Boot
FastAPI
Gin
Use middleware
Create controllers
Structure services
Configure framework conventions

Learning Outcomes

Understand the core principles of Express.js
Configure and deploy NestJS successfully
Troubleshoot common issues with Django
Understand the core principles of Spring Boot
Configure and deploy FastAPI successfully
Troubleshoot common issues with Gin
Understand the core principles of Use middleware
Configure and deploy Create controllers successfully
Troubleshoot common issues with Structure services
Understand the core principles of Configure framework conventions

Resources

Official Docs

Express docs NestJS docs FastAPI docs

Practice Exercises

Build CRUD routes.Add middleware and validation.Separate controller and service logic.

Project Task

Build a blog backend with posts, users, comments, and admin moderation.

Quiz

Why should business logic avoid living directly in route handlers?Explain the answer with one real-world example.List one mistake a beginner might make here.

Notes