How pydantic handles if request body is None

[ajay-sudosu]

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• I'm @tiangolo or he asked me directly to create an issue here.

Issue Content

Suppose I have a model:
class User(Basemodel):
name: str
age: str

And I have an endpoint something like:
@app.post("/user", description="User add")
def add_user(add_user_data: User):
so_something()

I am expecting a request body with the user details as show above in pydantic model
Question is how should I handle the case when request body is None

Note:
I am using fastapi add_exception_handler() function to handle the incoming request before reaching it to the endpoint some thing like:

def handle_pydantic_validations(request: Request, exc: ValidationError):
errors = exc.args[0]
error_list = [{error["loc"][1]: error["msg"]} for error in errors]
return make_response(status_code=status.HTTP_400_BAD_REQUEST, body={"body": error_list,
"status_code": status.HTTP_400_BAD_REQUEST})

[YuriiMotov]

Hi!
Could you?:

1. format your question (use "code" block to format code examples)
2. provide minimal example of what you have (but including imports and so on, so that we can just run it)
3. explain more clearly what you want to achieve