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node_form-data #141

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MaksymShevch Mar 25, 2025
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MaksymShevch Mar 26, 2025
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MaksymShevch Mar 26, 2025
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MaksymShevch Mar 26, 2025
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MaksymShevch Mar 27, 2025
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104 changes: 101 additions & 3 deletions src/createServer.js
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Original file line number Diff line number Diff line change
@@ -1,8 +1,106 @@
'use strict';
const fs = require('node:fs');
const http = require('node:http');

const htmlForm = `
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Add expense</title>
</head>
<body>
<h1>Add expense</h1>
<form action="/add-expense" method="POST">
<label for="date">Select a date: </label>
<input id="date" name="date" type="date" required><br><br>
<label for="title">Select a title: </label>
<input id="title" name="title" type="text" required><br><br>
<label for="amount">Select an amount: </label>
<input id="amount" name="amount" type="number" required><br><br>
<input type="submit" value="Submit">
</form>
</body>
</html>
`;

function getData(text, contentType) {
switch (contentType) {
case 'application/json':
return JSON.parse(text);

case 'application/x-www-form-urlencoded':
return text
.split('&')
.map((v) => v.split('='))
.reduce((acc, [key, value]) => {
acc[key] = decodeURIComponent(value);

return acc;
}, {});
}
}

function createServer() {
/* Write your code here */
// Return instance of http.Server class
return http.createServer((req, res) => {
if (req.url === '/') {
res.writeHead(200, 'OK', { 'content-type': 'text/html' });

return res.end(htmlForm);
}

if (['/add-expense', '/submit-expense'].includes(req.url)) {
if (req.method !== 'POST') {
res.writeHead(400, 'Bad Request', { 'content-type': 'text/html' });

return res.end(`${req.method} not allowed for this path`);
}

const chunks = [];

req.on('data', (chunk) => chunks.push(chunk));

req.on('end', () => {
const text = Buffer.concat(chunks).toString('utf-8');
const data = getData(text, req.headers['content-type']);

const keys = Object.keys(data);

if (
keys.length !== 3 ||
!keys.includes('date') ||
!keys.includes('title') ||
!keys.includes('amount')
) {
res.writeHead(400, 'Bad Request', { 'content-type': 'text/plain' });

return res.end(
'The request must include exactly 3 keys: date, title, and amount.',
);
}

const responseData = JSON.stringify(data);

fs.writeFile('./db/expense.json', responseData, (err) => {
if (err) {
res.writeHead(500, 'Server Error', {
'content-type': 'text/plain',
});

return res.end('Something went wrong. Please try again later.');
}

res.writeHead(200, 'OK', { 'content-type': 'application/json' });

res.end(responseData);
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@mateacademy-ai-mentor mateacademy-ai-mentor Mar 25, 2025

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The task description states that the server should return an HTML page with well-formatted JSON, but the current implementation returns JSON data with the content type set to application/json.

You should generate an HTML page with the JSON data embedded within it.

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@MaksymShevch MaksymShevch Mar 26, 2025

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test write exactly application/json

});
});

return;
}

res.writeHead(404, 'Not Found', { 'content-type': 'text/plain' });
res.end('Not Found');
});
}

module.exports = {
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