Signing you in…

Response models: filtering output

Response model: API safety and clarity

Suppose you have a User model with 20 fields including hashed_password. When someone requests a profile, you only need username and bio. Instead of manually scrubbing a dict before return, you tell FastAPI: use this reduced schema for the response. FastAPI filters out the rest even if your function returned a full object with secrets.

Content is available with subscription.
Get full access to all courses on the platform for one year with a single payment.
Unlike other platforms that charge per course, here you get everything for one price, and after one year of use there will be no automatic charge for the following year.