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task #192

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25 changes: 25 additions & 0 deletions public/index.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>form Data Server</title>
</head>
<body>
<form id="transferForm"
action="/add-expense"
method="post"
enctype="application/x-www-form-urlencoded">
<label for="date">Date:</label>
<input type="date" id="date" name="date" required />

<label for="title">Title:</label>
<input type="text" id="title" name="title" required />

<label for="amount">Amount:</label>
<input type="number" id="amount" name="amount" step="0.01" required />

<button type="submit">Submit</button>
</form>
</body>
</html>
84 changes: 82 additions & 2 deletions src/createServer.js
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Original file line number Diff line number Diff line change
@@ -1,8 +1,88 @@
'use strict';

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

function parseExpense(body, contentType = '') {
// It's for tests, because axios sends JSON instead of x-www-form-urlencoded.
if (contentType.includes('application/json')) {
return JSON.parse(body);
}

return Object.fromEntries(new URLSearchParams(body).entries());
}

function isValidExpense(expense) {
return Boolean(expense.date && expense.title && expense.amount);
}

function createServer() {
/* Write your code here */
// Return instance of http.Server class
const server = http.createServer((req, res) => {
if (req.url === '/') {
fs.readFile(
path.resolve(__dirname, '../public/index.html'),
'utf8',
(err, data) => {
if (err) {
res.writeHead(500, { 'Content-Type': 'text/plain' });
res.end('Bad Request');
} else {
res.writeHead(200, { 'Content-Type': 'text/html' });
res.end(data);
}
},
);
} else if (req.url === '/add-expense' && req.method === 'POST') {
const body = [];

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

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

try {
parsedData = parseExpense(
Buffer.concat(body).toString(),
req.headers['content-type'],
);
} catch (err) {
res.writeHead(400, { 'Content-Type': 'text/plain' });
res.end('Invalid request body');

return;
}

if (!isValidExpense(parsedData)) {
res.writeHead(400, { 'Content-Type': 'text/plain' });
res.end('Missing required fields');

return;
}

fs.writeFile(
path.resolve(__dirname, '../db/expense.json'),
JSON.stringify(parsedData, null, 2),
(err) => {
if (err) {
res.writeHead(500, { 'Content-Type': 'text/plain' });
res.end('Error saving data');
} else {
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify(parsedData));
Comment on lines +73 to +74
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@mateacademy-ai-mentor mateacademy-ai-mentor Apr 2, 2026

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According to the requirements, the server should return an HTML page that displays the well-formatted JSON data. Currently, you are returning a raw JSON response with the Content-Type set to application/json. The content type should be text/html, and the response body should be an HTML document containing the JSON.

}
},
);
});
} else {
res.writeHead(404, { 'Content-Type': 'text/plain' });
res.end('Not Found');
}
});

return server;
}

module.exports = {
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