Building APIs with FastAPI · 12-day planAll days
Day 9 of 12 35 minHashingOAuth2JWT
Protect your API. Start with simple API keys, then build proper user logins - hash passwords with bcrypt, exchange a username and password for a signed JWT access token with FastAPI's OAuth2 tools, and require a valid token with a current-user dependency. Learn the security rules that matter.
By the end of today you can
- Protect endpoints with an API key header
- Hash and check passwords with bcrypt, never storing plain text
- Issue JWT access tokens from a login endpoint with OAuth2PasswordRequestForm
- Require a logged-in user with OAuth2PasswordBearer and a current-user dependency
- Tell 401 from 403, and follow basic security rules
What's inside
- 4 sections
- 2 diagrams and mind maps
- 3 code examples you can run
- 5-question quiz
- 1API keys
- 2Passwords: hash them
- 3Logins with tokens
- 4Security rules that matter
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