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

SetHeaderMiddleware

struct SetHeaderMiddleware

Middleware for overriding/appending headers to response.

Example

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

let app = Router.new().with(
    SetHeaderMiddleware.new()
        .appending("MyHeader1", "a")
        .appending("MyHeader1", "b")
        .overriding("MyHeader2", "a")
        .overriding("MyHeader2", "b")
);

Implementions

Middleware

Methods

new

pub fn new(): SetHeaderMiddleware

[src]

pub fn new(): SetHeaderMiddleware {
    return SetHeaderMiddleware { actions: [] };
}

Creates a new SetHeader middleware.

Creates a new SetHeader middleware.

overriding

pub fn overriding(self, key: string, value: string): SetHeaderMiddleware

[src]

pub fn overriding(self, key: string, value: string): SetHeaderMiddleware {
    self.actions.push(SetHeaderMiddlewareAction { action: SetHeaderAction.Override, key, value });
    return self;
}

Inserts a header to response.

Inserts a header to response.

If a previous value exists for the same header, it is removed and replaced with the new header value.

appending

pub fn appending(self, key: string, value: string): SetHeaderMiddleware

[src]

pub fn appending(self, key: string, value: string): SetHeaderMiddleware {
    self.actions.push(SetHeaderMiddlewareAction { action: SetHeaderAction.Append, key, value });
    return self;
}

Appends a header to response.

Appends a header to response.

If previous values exist, the header will have multiple values.

transform

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

[src]

pub fn transform(self, handler: Handler): Handler {
    return handler
        .around(|handler, request| {
            let response = try handler.handle(request);
            for (let action in self.actions) {
                if (action.action == SetHeaderAction.Override) {
                    response.headers().set(action.key, action.value);
                } else if (action.action == SetHeaderAction.Append) {
                    response.headers().append(action.key, action.value);
                }
            }
            return response;
        });
}