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Http

The Krak Http package is a set of utilities for building Http applications. It comes with an implementation agnostic routing system, PSR-7 Response Factories, PSR-7 Server implementation, and a handful of useful middleware for Http applications.

Installation

Install via composer at krak/http

Usage

Response Factories

Every response factory must implement that interface.

Routes

Compiling Routes

Once you've created a set of routes, you can then compile them with a route compiler. These will traverse the hierarchy of routes and flatten them into an iterator with normalized paths.

Dispatch

To dispatch a set of routes, you need to create dispatcher factory, which will create a dispatcher from a set of routes, then you can dispatch a PSR-7 request.

Server

The server is responsible for creating a request, and emitting a response. It's a simple interface:

Middleware

Here are several useful middleware to use within your own applications. Each middleware takes two arguments: A PSR-7 Server Request, and an HttpLink. If you want more documentation on how the Link's work, checkout the Krak\Mw library.

injectRequestAttribute($name, $value)

This will automatically inject an attribute with a name and the given value.

wrap($psr7_middleware)

This will wrap PSR-7 style middleware that use the request and response in the middleware parameters.

serveStatic($root)

This will sit and will check if a file exists at the URI path. If it does, it will serve the file, else it will fall through to the next middleware.

mount($path, $mw)

Mounts a middleware on a path prefix. If the path prefix is matched, then the middleware is invoked.

The above middleware will try to load files on the /assets uri. So GET /assets/app.css will return a css file content if __DIR__ . /path/to/assets/app.css exists in the filesystem.

Tests and Examples

Run tests via: