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

CatchErrorMiddleware

struct CatchErrorMiddleware

Catch the specified kind of HttpError and convert it into a response.

Example

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

let app = Router.new().with(CatchErrorMiddleware.new(http.NotFound, |req, e| {
    return Response.text(`Fancy ${e.status()} with ${e.source()} from ${req.uri().path()}`);
}));

Implementions

Middleware

Methods

new

pub fn new(status: StatusCode, f: |(Request, HttpError)|: Response): CatchErrorMiddleware

[src]

pub fn new(status: StatusCode, f: |(Request, HttpError): Response throws|): CatchErrorMiddleware {
    return CatchErrorMiddleware { status, f };
}

Creates a new CatchError middleware.

Creates a new CatchError middleware.

transform

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

[src]

pub fn transform(self, handler: Handler): Handler {
    return handler
        .around(|handler, request| {
            let resp: Response? = nil;
            do {
                resp = try handler.handle(request);
            } catch(e: HttpError) {
                if (e.status() == self.status) {
                    return try (self.f)(request, e);
                }
                throw e;
            }
            return resp!;
        });
}