Via

Via is a simple and scalable router inspired by express.

This is the very first version, use with caution !

Needed

• PHP 5.3+
• (optional) URL rewriting
• Composer.

Installation with composer

• composer require bafs/via dev-master
• composer install

---

• Using Via
• Advanced usage
• Documentation
  • Router
  • Request
  • Response

Using Via

Complete Hello World example

<?php

use Via\Router;

require 'vendor/autoload.php';

$app = new Router();

$app->get('', function($req, $res) {
    $res('Hello world !');
});

$app(); // run the router

Simple route

$app->get('/test', function($req, $res) {
	$res('Test OK'); // print 'Test OK'
	$res->send('Test OK'); // Same as above
});

With parameters

$app->post('/test/:var', function($req, $res) {
	$res($req('var'));
	$res($req->params->var)); // Same as above
});

Multiple methods

$app->on(['GET', 'POST'], '/test', function() {
	// ...
});

Match multiple routes

// Match both (print '12')
$app->get('/test', function($req, $res, $next) {
	$res('1');
	$next(); // Continue to test next routes
});

$app->get('/test', function($req, $res) {
	$res('2');
});

Using namespaces

$app->with('/sub', function($app) {

	$app->with('/a', function($app) {
		// inside /sub/a

		$app->get('/test', function($req, $res){
			// match /sub/a/test
		});
	});
});

Use basic Via engine

$app->get('/test', function($req, $res, $next) {
	// You can use $title inside view.html
	$html = $res->render('view.html', ['title' => 'My Title']);
	$res->send($html);
});

Advanced usage

Using function will call $next() automatically

$app->using(function($req, $res) {
	$res->contentType('text/plain');
	$res->set('X-Custom-Header', 'test');
	// will continue to next route
});

// ...

With specific method

class A {
	function b($req, $res) {...}
}

$app->get('/', 'A@b');

Handle a controller

class MyController {
	function getUser($req, $res) {...}

	function postUser($req, $res) {...}
}

$app->get('/test/@@', 'MyController');

// GET /test/user will call "getUser"
// POST /test/user will call "postUser"

With regular expression

// GET /reg/F00D will print "F00D"
$app->get('R/reg/([0-9A-F]+)', function($req, $res, $next) {
	$res($req(0));
});

---

Documentation

Router (app)

get(string $route, function $callback)

Add a route with GET verb

post(string $route, function $callback)

Add a route with POST verb

put(string $route, function $callback)

Add a route with PUT verb

delete(string $route, function $callback)

Add a route with DELETE verb

on(string|array $verb, string $route, function $callback)

Add a route (can use muliple verb)

all(function $callback)

Add a route that always match

using(function $callback)

Add a route that always match and go to next

with(string $namespace, function $callback)

Add a namespace (prefix all routes)

get(string $name)

Get value from container

set(string $name, mixed $value)

Set value in app container

render(string $view, array $data)

Render a view

• $res->render("user.html", ["title" => "User"]); In template we can use: <title><?=$title?></title>

Request

Fields

• $params Parameters mapped from URL
• $query Queries mapped from URL
• $cookies Cookies
• $body Proprieties from POST
• $ip Get remote IP address
• $path Get requested URL path
• $xhr Check if request was done with 'XMLHttpRequest'
• $verb HTTP verb (method)
• $url Get current URL

get(string $field)

Get a specific header

• $req->header('host');
• $req->header(...); alias

param(string $name)

Return if exists (in order) $req->params->$name, $req->body->$name or $req->query->$name

• $req->param('str');
• $req(...); alias

is(string $type)

Check if mime type is in header

• $req->is('html');

[static] getRelativeURIToRoot()

Return path relative to root (eg. useful for assets in views)

[static] isRewriteActive()

Check if rewrite engine is active (rewrite can be enable but no active !)

Response

send([int $status], string $message)

Send output buffer

• $res->send('text');
• $res->send(404, 'Not found');
• $res->send(new MyObj()); print json
• $res(...); alias of $res->send(...);

json([int $status], string $json)

Send output buffer and force json content-type

• $res->json("{ user: 'Mario' }");

ssend([int $status], string $message)

Same as send but encode special html chars

redirect([int $status], string $url)

Redirect client to specific url

• $res->redirect('http://cern.ch');
• $res->redirect(301, '/test');

download(string $path, [string $filename, string $contentType])

Force to download a specific file

• $res->download('myImage.png');
• $res->download('CV_en_v4.pdf', 'Smith_CV.pdf');

file($filename, [$content])

Read or write file

• $res->file('myImage.png'); Read file
• $res->file('file.txt', $data); Write data

contentType(string $type)

• $res->contentType('text/plain'); Set 'Content-Type' header to text/plain

set(string $field, string $value)

Set header parameters

• $res->set('Content-Type', 'text/plain'); Set 'Content-Type' header to text/plain

•    'Content-Type' => 'text/plain',
     'ETag' => '10000'
   ]);```
  
  

status(int $code)

• $res->status(404);

cookie(string $name, [string $value, array $options])

• $res->cookie("TestCookie", "something", ["maxAge" => 3600, "secure" => true]);

clearCookie(string $name, [array $options])

• $res->clearCookie("TestCookie"); Clear 'TestCookie' cookie

render(string $view, array $data)

Alias of render in "Router"

Dev

To run the tests, go to the test folder, edit URL constant (run.php line 10) and run php run.php.