[−][src]Type Definition rocket::request::FormError
type FormError<'f> = FormDataError<'f, FormParseError<'f>>;
Alias to the type of form errors returned by the FromData
implementations of Form<T>
where the FromForm
implementation for T
was derived.
This alias is particularly useful when "catching" form errors in routes.
Example
use rocket::request::{Form, FormError, FormDataError}; #[derive(FromForm)] struct Input { value: String, } #[post("/", data = "<sink>")] fn submit(sink: Result<Form<Input>, FormError>) -> String { match sink { Ok(form) => form.into_inner().value, Err(FormDataError::Io(_)) => "I/O error".into(), Err(FormDataError::Malformed(f)) | Err(FormDataError::Parse(_, f)) => { format!("invalid form input: {}", f) } } }