Chapter 4,6: prettier updates and web framework samples

Chapter04/file-upload/public/form.html

@@ -1,5 +1,5 @@
 <form method="POST" enctype="multipart/form-data">
-    <label for="userfile">File:</label>
-    <input type="file" id="userfile" name="userfile"><br>
-    <input type="submit">
+  <label for="userfile">File:</label>
+  <input type="file" id="userfile" name="userfile" /><br />
+  <input type="submit" />
 </form>

Chapter04/file-upload/server.js

@@ -1,55 +1,58 @@
-const fs = require('fs')
-const http = require('http')
-const path = require('path')
+const fs = require("fs");
+const http = require("http");
+const path = require("path");
 
-const form = fs.readFileSync(path.join(__dirname, 'public', 'form.html'))
+const form = fs.readFileSync(path.join(__dirname, "public", "form.html"));
 
-const formidable = require('formidable')
+const formidable = require("formidable");
 
-
-http.createServer((req, res) => {
-    if (req.method === 'GET') {
-        get(res)
-        return
+http
+  .createServer((req, res) => {
+    if (req.method === "GET") {
+      get(res);
+      return;
     }
-    if (req.method === 'POST') {
-        post(req, res)
-        return
+    if (req.method === "POST") {
+      post(req, res);
+      return;
     }
-    error(405, res)
-}).listen(3000)
+    error(405, res);
+  })
+  .listen(3000);
 
 function get(res) {
-    res.writeHead(200, {
-        'Content-Type': 'text/html'
-    })
-    res.end(form)
+  res.writeHead(200, {
+    "Content-Type": "text/html",
+  });
+  res.end(form);
 }
 
 function post(req, res) {
-    if (!/multipart\/form-data/.test(req.headers['content-type'])) {
-        error(415, res)
-        return
-    }
+  if (!/multipart\/form-data/.test(req.headers["content-type"])) {
+    error(415, res);
+    return;
+  }
 
-    const form = formidable({
-        multiples: true,
-        uploadDir: './uploads'
+  const form = formidable({
+    multiples: true,
+    uploadDir: "./uploads",
+  });
+
+  form.parse(req, (err, fields, files) => {
+    if (err) return err;
+    res.writeHead(200, {
+      "Content-Type": "application/json",
     });
-
-    form.parse(req, (err, fields, files) => {
-        if (err) return err
-        res.writeHead(200, {
-            'Content-Type': 'application/json'
-        });
-        res.end(JSON.stringify({
-            fields,
-            files
-        }))
-    })
+    res.end(
+      JSON.stringify({
+        fields,
+        files,
+      })
+    );
+  });
 }
 
 function error(code, res) {
-    res.statusCode = code
-    res.end(http.STATUS_CODES[code])
-}
+  res.statusCode = code;
+  res.end(http.STATUS_CODES[code]);
+}