diff --git a/public/index.html b/public/index.html
new file mode 100644
index 0000000..c52a978
--- /dev/null
+++ b/public/index.html
@@ -0,0 +1,43 @@
+
+
+
+
+ Form data
+
+
+ Form data for expense
+
+
+
diff --git a/src/createServer.js b/src/createServer.js
index 1cf1dda..0cb8201 100644
--- a/src/createServer.js
+++ b/src/createServer.js
@@ -1,8 +1,126 @@
'use strict';
+const http = require('node:http');
+const fs = require('node:fs');
+const path = require('node:path');
+
function createServer() {
- /* Write your code here */
- // Return instance of http.Server class
+ const server = http.createServer((req, res) => {
+ const reqUrl = new URL(req.url || '', `http://${req.headers.host}`);
+ const pathname = reqUrl.pathname;
+
+ if (req.method === 'GET' && pathname === '/') {
+ const indexPath = path.resolve('public', 'index.html');
+
+ res.statusCode = 200;
+ res.setHeader('Content-Type', 'text/html');
+ fs.createReadStream(indexPath).pipe(res);
+
+ return;
+ }
+
+ if (req.method === 'GET' && pathname === '/add-expense') {
+ res.statusCode = 400;
+
+ return res.end('Only POST method allowed');
+ }
+
+ if (req.method === 'POST' && pathname === '/add-expense') {
+ let body = '';
+
+ req.on('data', (chunk) => {
+ body += chunk.toString();
+ });
+
+ req.on('end', () => {
+ try {
+ const contentType = req.headers['content-type'];
+ let dataObj;
+
+ if (contentType.includes('application/json')) {
+ dataObj = JSON.parse(body);
+ } else if (
+ contentType.includes('application/x-www-form-urlencoded')
+ ) {
+ const parsed = new URLSearchParams(body);
+
+ dataObj = Object.fromEntries(parsed.entries());
+ } else {
+ res.writeHead(400, { 'Content-Type': 'text/plain' });
+
+ return res.end('Unsupported content type');
+ }
+
+ const { date, title, amount } = dataObj;
+
+ if (!date || !title || !amount) {
+ res.writeHead(400, { 'Content-Type': 'text/plain' });
+
+ return res.end('Invalid data format');
+ }
+
+ const dbDir = path.resolve('db');
+
+ if (!fs.existsSync(dbDir)) {
+ fs.mkdirSync(dbDir, { recursive: true });
+ }
+
+ const filePath = path.join(dbDir, 'expense.json');
+
+ fs.readFile(filePath, (err, fileData) => {
+ let newDataForFile;
+
+ if (!err && fileData.length > 0) {
+ try {
+ const temp = JSON.parse(fileData);
+
+ if (Array.isArray(temp)) {
+ temp.push(dataObj);
+ newDataForFile = temp;
+ } else if (
+ typeof temp === 'object' &&
+ temp !== null &&
+ Object.keys(temp).length > 0
+ ) {
+ newDataForFile = [temp, dataObj];
+ } else {
+ newDataForFile = dataObj;
+ }
+ } catch (e) {
+ newDataForFile = dataObj;
+ }
+ } else {
+ newDataForFile = dataObj;
+ }
+
+ fs.writeFile(
+ filePath,
+ JSON.stringify(newDataForFile, null, 2),
+ (error) => {
+ if (error) {
+ res.writeHead(500, { 'Content-Type': 'text/plain' });
+
+ return res.end(`Server error: ${error}`);
+ }
+ res.writeHead(200, { 'Content-Type': 'application/json' });
+ res.end(JSON.stringify(dataObj));
+ },
+ );
+ });
+ } catch (e) {
+ res.writeHead(400, { 'Content-Type': 'text/plain' });
+ res.end(`Invalid request body: ${e.message}`);
+ }
+ });
+
+ return;
+ }
+
+ res.statusCode = 404;
+ res.end('Not found');
+ });
+
+ return server;
}
module.exports = {