Struct PostMiddleware

Source

pub struct PostMiddleware<B, E> { /* private fields */ }

Expand description

The post middleware type. Refer to Post Middleware for more info.

This PostMiddleware<B, E> type accepts two type parameters: B and E.

The B represents the response body type which will be used by route handlers and the middlewares and this body type must implement the HttpBody trait. For an instance, B could be hyper::Body type.
The E represents any error type which will be used by route handlers and the middlewares. This error type must implement the std::error::Error.

Implementations§

Source §

impl<B: HttpBody + Send + Sync + 'static, E: Into<Box<dyn Error + Send + Sync>> + 'static> PostMiddleware<B, E>

Source

pub fn new<P, H, R>(path: P, handler: H) -> Result<PostMiddleware<B, E>>
where P: Into<String>, H: Fn(Response) -> R + Send + Sync + 'static, R: Future<Output = Result<Response, E>> + Send + 'static,

Creates a post middleware with a handler at the specified path.

§Examples

use routerify::{Router, Middleware, PostMiddleware};
use hyper::{Response, Body};
use std::convert::Infallible;

let router = Router::builder()
     .middleware(Middleware::Post(PostMiddleware::new("/abc", |res| async move { /* Do some operations */ Ok(res) }).unwrap()))
     .build()
     .unwrap();

Source

pub fn new_with_info<P, H, R>( path: P, handler: H, ) -> Result<PostMiddleware<B, E>>
where P: Into<String>, H: Fn(Response, RequestInfo) -> R + Send + Sync + 'static, R: Future<Output = Result<Response, E>> + Send + 'static,

Creates a post middleware which can access request info e.g. headers, method, uri etc. It should be used when the post middleware trandforms the response based on the request information.

§Examples

use routerify::{Router, Middleware, PostMiddleware, RequestInfo};
use hyper::{Response, Body};
use std::convert::Infallible;

async fn post_middleware_with_info_handler(res: Response<Body>, req_info: RequestInfo) -> Result<Response<Body>, Infallible> {
    let headers = req_info.headers();
     
    // Do some response transformation based on the request headers, method etc.
     
    Ok(res)
}

let router = Router::builder()
     .middleware(Middleware::Post(PostMiddleware::new_with_info("/abc", post_middleware_with_info_handler).unwrap()))
     .build()
     .unwrap();