Add RESTful examples

examples/07-restful/.htaccess

@@ -0,0 +1,13 @@
+<IfModule mod_rewrite.c>
+  RewriteEngine On
+
+  RewriteCond %{REQUEST_METHOD} ^(TRACE|TRACK)
+  RewriteRule .* - [F]
+
+  RewriteCond %{ENV:REDIRECT_STATUS} 200
+  RewriteRule .* - [L]
+
+  RewriteCond %{REQUEST_FILENAME} !-f
+  RewriteCond %{REQUEST_FILENAME} !-d
+  RewriteRule ^(.*)$ index.php?_path_=$1 [QSA,L]
+</IfModule>

examples/07-restful/index.php

@@ -0,0 +1,87 @@
+<?php
+include __DIR__ . '/../../src/autoload.php';
+
+$app = new \Riverside\Express\Application();
+
+$testVerbs = function(\Riverside\Express\Request $req, \Riverside\Express\Response $res) {
+    if ($req->method == 'HEAD')
+    {
+        $res->end();
+    }
+    $res->json([
+        'method' => $req->method,
+        'content-type' => $req->get("content-type"),
+        'params' => $req->params,
+        'body' => $req->body,
+    ]);
+};
+
+$app->get('/', function($req, $res) {
+    $html = <<<EEE
+<form action="" method="post">
+    <input type="hidden" name="foo" value="bar">
+    <button type="submit" name="method" value="get">GET</button>
+    <button type="submit" name="method" value="head">HEAD</button>
+    <button type="submit" name="method" value="post">POST</button>
+    <button type="submit" name="method" value="put">PUT</button>
+    <button type="submit" name="method" value="patch">PATCH</button>
+    <button type="submit" name="method" value="delete">DELETE</button>
+</form>
+<code id="result"></code>
+<script>
+let method;
+const result = document.querySelector("#result");
+function handleFormSubmit(event) {
+    event.preventDefault();
+    
+    const options = {
+        method: method,
+        headers: {
+            "accept": "application/json"
+        }
+    };
+    if (["post", "put", "patch"].includes(method)) {
+        options.headers["content-type"] = "application/x-www-form-urlencoded";
+        options.body = new URLSearchParams(new FormData(this)).toString();
+    } else if (method === "head") {
+        options.headers.accept = "*/*";
+    }
+    fetch("contact/1", options)
+        .then(function(response) {
+            return response.ok ? (method === "head" ? response.headers : response.json()) : Promise.reject(response);
+        })
+        .then(function(data) {
+            if (method === "head") {
+                const tmp = {};
+                for (let [key, value] of data.entries()) {
+                    tmp[key] = value;
+                }
+                data = tmp;
+            }
+            result.innerText = JSON.stringify(data, null, 4);
+        })
+        .catch(function(reason) {
+            console.warn(reason);
+        });
+}
+
+function handleButtonClick(event) {
+    method = this.value;
+}
+
+[].forEach.call(document.querySelectorAll("button[type='submit']"), function(btn) {
+    btn.addEventListener("click", handleButtonClick);
+});
+document.querySelector("form").addEventListener("submit", handleFormSubmit);
+</script>
+EEE;
+    $res->send($html);
+});
+$app->get('contact/:id', $testVerbs);
+$app->head('contact/:id', $testVerbs);
+$app->post('contact/:id', $testVerbs);
+$app->put('contact/:id', $testVerbs);
+$app->patch('contact/:id', $testVerbs);
+$app->delete('contact/:id', $testVerbs);
+
+$app->run();

examples/index.php

@@ -14,6 +14,7 @@
         <li><a href="04-router/">Router</a></li>
         <li><a href="05-post/">POST method</a></li>
         <li><a href="06-params/">Params</a></li>
+        <li><a href="07-restful/">RESTful</a></li>
     </ul>
 
 </body>