Function rocket_enumform::from_str [−][src]
pub fn from_str<'a, T>(string: &'a str) -> Result<T, Error> where
T: Deserialize<'a>,
Expand description
Deserialize an instance of type T
from a string of UrlEncoded text.
Always use UrlEncoded
to deserialize UrlEncoded request data.
Example
use rocket::serde::Deserialize;
#[derive(Debug, PartialEq, Deserialize)]
struct Data<'r> {
framework: &'r str,
stars: usize,
}
let string = r#"framework=Rocket&stars=5"#;
let data: Data = rocket_enumform::from_str(string).unwrap();
assert_eq!(data, Data { framework: "Rocket", stars: 5 });
Errors
This conversion can fail if the structure of the input does not match the
structure expected by T
, for example if T
is a struct type but the input
contains something other than a UrlEncoded map. It can also fail if the structure
is correct but T
’s implementation of Deserialize
decides that something
is wrong with the data, for example required struct fields are missing from
the UrlEncoded map or some number is too big to fit in the expected primitive
type.