From f0dfefa58657853f6d7879f081366443563de5e9 Mon Sep 17 00:00:00 2001 From: Sascha Schulz <sschulz@dh-software.de> Date: Mi, 05 Apr 2023 15:34:55 +0200 Subject: [PATCH] finish chapter HTTP and add chapter JSON --- index.html | 208 ++++++++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 203 insertions(+), 5 deletions(-) diff --git a/index.html b/index.html index b75af3c..8207769 100644 --- a/index.html +++ b/index.html @@ -688,14 +688,212 @@ </section> <section> <ul> - <li>Befindet sich auf den OSI-Schichten 5, 6 und 7</li> - <li>Basiert auf dem Anfrage-Antwort-Prinzip</li> - <li>Basiert auf reinem Text</li> + <li>OSI-Schichten 5, 6 und 7</li> + <li>Anfrage-Antwort-Prinzip</li> + <li>Basiert auf einfachem Text</li> </ul> </section> <section> - <p><code>npm install http-server</code></p> - <p><code>npx http-server --port 3000</code></p> + <table> + <tr><th>Version</th><th>Jahr</th></tr> + <tr><th>0.9</th><th>1991</th></tr> + <tr><th>1.0</th><th>1996</th></tr> + <tr><th>1.1</th><th>1999</th></tr> + <tr><th>2.0</th><th>2015</th></tr> + <tr><th>3.0</th><th>2022</th></tr> + </table> + </section> + <section> + <p>Request an www.google.de</p> + <pre> + <code class="http" data-trim data-line-numbers> + GET / HTTP/1.1 + Host: www.google.de + User-Agent: curl/7.88.1 + Accept: */* + </code> + </pre> + </section> + <section> + <p>Response von www.google.de</p> + <pre> + <code class="http" data-trim data-line-numbers> + HTTP/1.1 200 OK + Date: Tue, 04 Apr 2023 15:45:26 GMT + Expires: -1 + Cache-Control: private, max-age=0 + Content-Type: text/html; charset=ISO-8859-1 + Content-Security-Policy-Report-Only: [...] + Server: gws + X-XSS-Protection: 0 + X-Frame-Options: SAMEORIGIN + Set-Cookie: [...] + Accept-Ranges: none + Vary: Accept-Encoding + Transfer-Encoding: chunked + + <!doctype html><html>...</html> + </code> + </pre> + </section> + <section> + <p>Einfach mal testen:</p> + <pre> + <code class="bash" data-trim data-line-numbers> + curl -v --http1.0 http://www.google.de + curl -v --http1.1 http://www.google.de + curl -v --http2 http://www.google.de + curl -v --http2-prior-knowledge http://www.google.de + curl -v --http3 http://www.google.de + </code> + </pre> + </section> + <section> + <p>Verschiedene "Verben" bzw. "Methoden"</p> + <ul> + <li>GET</li> + <li>POST</li> + <li>PUT</li> + <li>PATCH</li> + <li>DELETE</li> + <li>...</li> + </ul> + </section> + <section> + <p>Beispiel:</p> + <pre> + <code class="bash" data-trim data-line-numbers> + git clone https://git.furnco.de/r/public/web-development/examples.git + cd examples/templates/005-http-rest + node index.js + </code> + </pre> + </section> + <section> + <pre> + <code class="text" data-trim data-line-numbers> + curl -X GET -is http://localhost:3000/todo + curl -X POST -H "Content-Type: application/json" -d '{"name": "Einkaufen"}' -is http://localhost:3000/todo + curl -X POST -H "Content-Type: application/json" -d '{"name": "Putzen"}' -is http://localhost:3000/todo + curl -X PUT -H "Content-Type: application/json" -d '{"name": "Schlafen"}' -is http://localhost:3000/todo/1 + curl -X DELETE -is http://localhost:3000/todo/0 + </code> + </pre> + </section> + <section> + <pre> + <code class="text" data-trim data-line-numbers> + HTTP/1.1 200 OK + X-Powered-By: Express + Content-Type: application/json; charset=utf-8 + Content-Length: 13 + ETag: W/"d-KMmUcQ1kigqtwzZnU+jVDkYP3Co" + Date: Wed, 05 Apr 2023 12:05:05 GMT + Connection: keep-alive + Keep-Alive: timeout=5 + + ["Einkaufen"] + </code> + </pre> + </section> + <section> + <pre> + <code class="js" data-trim data-line-numbers=""> + app.get("/todo", (req, res) => { + return res.json(todos); + }); + + // [...] + + app.post("/todo", (req, res) => { + // [...] + return res.json(todos); + // [...] + }); + </code> + </pre> + </section> + <section> + <p><code>GET</code> und <code>POST</code> auf klassischen Webseiten</p> + <pre> + <code class="html" data-trim data-line-numbers> + <form method="post" action="/todo"> + <input name="todo"><button>add</button> + </form> + </code> + </pre> + <p>Beispiel:</p> + <pre> + <code class="bash" data-trim data-line-numbers> + cd examples/templates/006-http-web + node index.js + </code> + </pre> + </section> + </section> + <section> + <section> + <h3>JSON</h3> + </section> + <section> + <ul> + <li><em class="h">J</em>ava<em class="h">S</em>cript <em class="h">O</em>bject <em class="h">N</em>otation</li> + <li>Basiert auf reinem Text</li> + <li>Format zur strukturierten Speicherung von Daten</li> + <li>Attribute müssen immer in doppelte Anführungsstriche (<code>"</code>) gesetzt werden</li> + </ul> + </section> + <section> + <p>Definition eines einfachen Objekts in JS</p> + <pre> + <code class="js" data-trim data-line-numbers> + const o = { + x: 1, + y: 2 + }; + </code> + </pre> + </section> + <section> + <p>Entsprechung in JSON</p> + <pre> + <code class="js" data-trim data-line-numbers> + { + "x": 1, + "y": 2 + } + </code> + </pre> + </section> + <section> + <p>Mögliche Typen</p> + <p> + <ul> + <li>Number (bzw. Integer / Float)</li> + <li>Boolean</li> + <li>String</li> + <li>Array</li> + <li>Object</li> + </ul> + </p> + </section> + <section> + <p>Der äußere Container kann ein Array oder ein Object sein</p> + <pre> + <code class="js" data-trim data-line-numbers> + { + "key": "value", + } + </code> + </pre> + <pre> + <code class="js" data-trim data-line-numbers> + [ + "foo", + "bar" + ] + </code> + </pre> </section> </section> </div> -- Gitblit v1.9.3