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add task solution #183

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23a38c7
add task solution
4xmplme Feb 23, 2026
10d11e9
fix task solution according to ai mentor's suggestion
4xmplme Feb 23, 2026
83a12b8
fix task solution according to ai mentor's suggestion
4xmplme Feb 23, 2026
e94bc89
fix task solution according to ai mentor's suggestion
4xmplme Feb 23, 2026
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90 changes: 88 additions & 2 deletions src/createServer.js
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Original file line number Diff line number Diff line change
@@ -1,8 +1,94 @@
'use strict';

const http = require('http');
const fs = require('fs');
const path = require('path');

function createServer() {
/* Write your code here */
// Return instance of http.Server class
return http.createServer((req, res) => {
if (
req.method === 'GET' &&
(req.url === '/' || req.url === '/index.html')
) {
res.setHeader('Content-Type', 'text/html');
res.statusCode = 200;

res.end(`
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Expense Form</title>
</head>
<body>
<form action="/add-expense" method="POST">
<input type="date" name="date" required>
<input type="text" name="title" required>
<input type="number" name="amount" required>
<button type="submit">Submit</button>
</form>
</body>
</html>
`);

return;
}

if (req.method === 'POST' && req.url === '/add-expense') {
let body = '';

req.on('data', (chunk) => {
body += chunk.toString();
});

req.on('end', () => {
let expense;

try {
// It could be JSON (for tests) or url-encoded (for standard forms)
if (req.headers['content-type'] === 'application/json') {
expense = JSON.parse(body);
} else {
expense = Object.fromEntries(new URLSearchParams(body));
}
} catch (e) {
res.statusCode = 400;
res.end('Invalid request formats');

return;
}

const { date, title, amount } = expense;

if (!date || !title || !amount) {
res.statusCode = 400;
res.end('Missing required fields');

return;
}

const dataPath = path.resolve(__dirname, '../db/expense.json');

fs.writeFile(dataPath, JSON.stringify(expense, null, 2), (err) => {
if (err) {
res.statusCode = 500;
res.end('Internal Server Error');

return;
}

res.statusCode = 200;
res.setHeader('Content-Type', 'application/json');
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@mateacademy-ai-mentor mateacademy-ai-mentor Feb 23, 2026

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The task specifies that the app should 'return an HTML page with well formatted JSON' after receiving and saving the data. Currently, the server sets the Content-Type to application/json and sends the JSON directly. Please modify this to embed the JSON within an HTML structure, ensuring the Content-Type is set to text/html.

res.end(JSON.stringify(expense));
});
});

return;
}

res.statusCode = 404;
res.end('Not Found');
});
}

module.exports = {
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