Struct Json 

pub struct Json<T>(pub T)
where
    T: for<'de> Deserialize<'de> + Send;

Represented as json data

when post as a application/json, we can using this struct to inject data, note: the struct must impl serde::Deserialize and Send

Example

#[derive(Deserialize, Debug)]
struct Params {
    name: String,
    zip: String,
}

pub async fn handle(Json(params) : Json<Params>) -> String {
    format!("received params: {:?}", params)
}

Tuple Fields

0: T

Trait Implementations

impl<T> FromRequest for Json<T>

where T: for<'de> Deserialize<'de> + Send,

Extracts JSON data from request body

This implementation expects the request body to be valid JSON and deserializes it into the target type using serde_json.

type Output<'r> = Json<T>

type Error = ParseError

async fn from_request<'r>( req: &'r RequestContext<'_, '_>, body: OptionReqBody, ) -> Result<Self::Output<'r>, Self::Error>