Struct Extension 

pub struct Extension<T>(pub T);

Extracts a value from request extensions.

Use this to access arbitrary types injected by middleware or other infrastructure. Unlike State, extensions are per-request.

Example

use typeway_server::Extension;

#[derive(Clone)]
struct RequestId(String);

async fn handler(Extension(id): Extension<RequestId>) -> String {
    format!("Request: {}", id.0)
}

Tuple Fields

0: T

Trait Implementations

impl<T: Clone + Send + Sync + 'static> FromRequestParts for Extension<T>

type Error = (StatusCode, String)

The error type returned when extraction fails.

fn from_request_parts(parts: &Parts) -> Result<Self, Self::Error>

Extract this type from the request parts.