Gin Is there any way to trim whitespaces from path, query and body parameters before binding?

If user accidentally adds whitespaces in param ex.:

a := struct {
    DateField time.Time `json:"date_field" binding:required`
}

Body:

{
    "date_field": "2022-06-02   "
}

is there any way to remove extra spaces before binding to struct to prevent possible errors?

Comment From: dansimau

I also have the same requirement.

This can be achieved with custom bindings, but I've found myself copy/pasting a lot of internal code just to recreate the builtin binders but with a TrimSpace.

Maybe it would make more sense to be able to hook into the existing binding via pre/post hooks.

Comment From: therox

Or it could be something like strip_whitespace=True in pydantic.

Comment From: Cookiery

Maybe you can handle it in the frontend.

Comment From: jledesma84

@therox did you find anything interesting to solve this?

Comment From: therox

@jledesma84 No, I didn't. I have to use reflect manually to get access to structure field's data.