Welcome to the file uploads guide! 📁✨ This documentation covers how to handle file uploads in your application, including best practices, common use cases, and technical specifications.
Overview
File uploads are essential for many web applications, allowing users to send files such as images, documents, or data to your server. Most file upload functionality is implemented using multipart/form-data encoding in HTTP requests. 🔐
- Supported File Types: Images (JPEG, PNG), PDFs, text files, and more.
- Maximum Size: Typically limited to 10MB, but configurable.
- Security: Always validate and sanitize user input to prevent malicious uploads. ⚠️
Steps to Implement File Uploads
- Create a Form: Use
<form>
withenctype="multipart/form-data"
<form action="/upload" method="post" enctype="multipart/form-data">
- Add File Input: Include
<input type="file">
in your form<input type="file" name="document">
- Handle on Server: Process the uploaded file using server-side logic. For example, in Node.js:
const file = req.files.document;
Best Practices
- 🔧 Use secure file naming: Avoid user-provided filenames to prevent path traversal attacks.
- 📈 Monitor file size: Implement checks to prevent excessive resource usage.
- 🌐 Provide clear user guidance: Include instructions on acceptable file formats and sizes.
Related Links
- REST API Guide for integrating file upload endpoints
- Security Best Practices to protect your application from vulnerabilities