FastAPI - Request Body and POST requests | Pydantic pre-validators 

Thanks a lot! Appreciate it! I love Aphex/BoC and similar artists - and that music is what I go for when coding too, often!

Yes, use the new field_validator function: class BandCreate(BandBase): @field_validator("genre", mode='before') def title_case_genre(cls, value): return value.title()

It is - you have to change the code to: from pydantic import BaseModel, field_validator @field_validator('genre', mode='before') @classmethod

Thank you as always!

Thanks as always man!!

Thanks a lot for the nice comment, cheers!

Thanks!

You can apply validation for each field in the Pydantic model that defines the data expected from the body. That data will be converted to an instance of the Model used as a parameter, and will either pass/fail validations defined in the model (constraints, type-conversions, custom validator functions, etc). You could perform further validation in the handler function too, if you'd like (check for HTML, SQL, etc). Any input sent to the database should be sanitized of course... will look at that later in the series!

I mostly went security wise; normally, it's a terrible idea to just trust what you receive and do something with it

Thanks a lot!

Yes, definitely! Need to prepare some more, and I've started with a full-stack app too that uses FastAPI.

@@bugbytes3923 can you create a video on database integration, as you said in the video