Chapter 4,6: prettier updates and web framework samples

Chapter04/post-server/json-server.js

@@ -1,56 +1,57 @@
-const http = require('http')
-const fs = require('fs')
-const path = require('path')
+const http = require("http");
+const fs = require("fs");
+const path = require("path");
 
-const form = fs.readFileSync(path.join(__dirname, 'public', 'form.html'))
+const form = fs.readFileSync(path.join(__dirname, "public", "form.html"));
 
-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 (req.headers['content-type'] !== 'application/json') {
-        error(415, res)
-        return
+  if (req.headers["content-type"] !== "application/json") {
+    error(415, res);
+    return;
+  }
+
+  let input = "";
+
+  req.on("data", (chunk) => {
+    input += chunk.toString();
+  });
+
+  req.on("end", () => {
+    const parsed = JSON.parse(input);
+
+    if (parsed.err) {
+      error(400, "Bad Request", res);
+      return;
     }
 
-    let input = '';
-
-    req.on('data', chunk => {
-        input += chunk.toString()
-    })
-
-    req.on('end', () => {
-        const parsed = JSON.parse(input)
-
-        if (parsed.err) {
-            error(400, 'Bad Request', res)
-            return
-        }
-
-        console.log('Received data: ', parsed)
-        res.end('{"data": ' + input + "}")
-    })
-
+    console.log("Received data: ", parsed);
+    res.end('{"data": ' + input + "}");
+  });
 }
 
 function error(code, res) {
-    res.statusCode = code
-    res.end(http.STATUS_CODES[code])
-}
+  res.statusCode = code;
+  res.end(http.STATUS_CODES[code]);
+}