FastAPI - Authentication and Security
In FastAPI, which class should you use to create a dependency that extracts a Bearer token from the Authorization header for OAuth2 authentication?
In FastAPI, which class should you use to create a dependency that extracts a Bearer token from the Authorization header for OAuth2 authentication?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Understand OAuth2 token extraction
FastAPI provides specific classes to handle OAuth2 token extraction from headers.Step 2: Identify the correct class
OAuth2PasswordBearer is designed to extract Bearer tokens from the Authorization header.Final Answer:
OAuth2PasswordBearer -> Option BQuick Check:
OAuth2PasswordBearer is the standard for Bearer token dependencies in FastAPI. [OK]
Quick Trick: Use OAuth2PasswordBearer for Bearer token dependencies [OK]
Common Mistakes:
MISTAKES- Confusing OAuth2PasswordBearer with HTTPBasicCredentials
- Using APIKeyHeader which is for API keys, not Bearer tokens
- Selecting OAuth2AuthorizationCodeBearer which is for authorization code flow
Master "Authentication and Security" in FastAPI
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