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Django REST Framework

⬢ 層級 2技術
高
薪資影響
5 個月
學習時長
中等
難度
3
職業
一覽

Django REST Framework (DRF) is a powerful toolkit for building REST APIs in Python. It includes serializers (data validation), viewsets (CRUD endpoints), permissions (auth), throttling (rate-limiting), and pagination. Junior DRF devs earn $70-100k USD; seniors $130-200k. Learning curve: 4-6 weeks to ship APIs, 6+ months for mastery (advanced permissions, caching, optimization). Adjacent to FastAPI, GraphQL, and Django ORM.

什麼是 Django REST Framework

Django REST Framework (DRF) is a Python library for building REST APIs on top of Django. It provides high-level abstractions: serializers (validate and convert data), viewsets (automatic CRUD endpoints), permissions (control who can access what), throttling (rate-limit requests), pagination, and authentication. A typical DRF flow: HTTP POST /users/ with JSON data → serializer validates → view saves to database → serializer returns JSON response. All with minimal boilerplate.

🔧 工具與生態
DjangoDjango REST FrameworkPostgreSQLRedis (caching)DockerPostman or Insomnia (API testing)GitHub Actions (CI/CD)

📋 開始之前

PythonBackend Development

💰 各地區薪資

地區初級中級高級
USA$80,000$135,000$200,000
UK£55,000£95,000£145,000
EU€60,000€105,000€155,000
CANADACA$85,000CA$140,000CA$210,000

🎯 使用 Django REST Framework 的職業

Backend Developer
Database Administrator
Full Stack Developer

⚖ 對比

Nodejs Express

❓ 常見問題

When should I use DRF vs FastAPI?
DRF if you need ORM integration, admin panel, and ecosystem maturity. FastAPI if you need raw speed, async-first, and modern Python. DRF is slower (10-50ms response times) but more feature-rich. FastAPI is faster (1-5ms) but requires more DIY tooling.
How do I handle authentication in DRF?
DRF provides token auth (API key), session auth (cookies), and JWT (JSON Web Tokens). Use JWT for mobile/SPA clients. Session auth for traditional web apps. Combine with Django's auth system for user management.
What's a serializer and why do I need it?
Serializer = validator + converter. It validates incoming data (is email valid?), converts Python objects to JSON, and provides error messages. Without serializers, you'd write validation logic in every endpoint.
How do I optimize a slow DRF API?
Profile with Django Debug Toolbar. Common issues: N+1 queries (use select_related), no pagination (add pagination), no caching (use Redis), or inefficient serializers (use SlugRelated instead of full nested serializers).
Can I use DRF with async?
DRF 3.14+ supports async views, but it's new. Most DRF code is synchronous. If you need heavy async, FastAPI is better. If you want async in DRF, use Celery for background tasks.

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