Stdlib/std.net.http.server.middlewares/PropagateHeaderMiddleware

PropagateHeaderMiddleware

struct PropagateHeaderMiddleware

Middleware for propagating a header from the request to the response.

Example

use std.net.http.server.{
    middlewares.PropagateHeaderMiddleware,
    Router,
};

let app = Router.new().with(PropagateHeaderMiddleware.new(["x-request-id"]));

Implementions

Middleware

Methods

new

pub fn new(headers: [string]): PropagateHeaderMiddleware

[src]

pub fn new(headers: [string]): PropagateHeaderMiddleware {
    return PropagateHeaderMiddleware { headers: headers };
}

Creates a new PropagateHeaderMiddleware middleware.

Creates a new PropagateHeaderMiddleware middleware.

transform

pub fn transform(self, handler: Handler): Handler

[src]

pub fn transform(self, handler: Handler): Handler {
    return handler
        .around(|handler, request| {
            let new_headers: <string, string> = {:};
            for (let key in self.headers) {
                if (let value = request.headers().get(key)) {
                    new_headers.set(key, value);
                }
            }
            let response = try handler.handle(request);
            for (let key, val in new_headers) {
                response.headers().append(key, val);
            }
            return response;
        });
}