Austin Gil

Full Spectrum File Uploads

A single large file upload can crash your server. Discover the streaming architecture that prevents this common and critical vulnerability.

Full Spectrum File Uploads
#1about 2 minutes

Understanding the HTTP fundamentals of file uploads

HTTP is the core protocol for sending files online, and browsers provide APIs like HTML and JavaScript to construct these requests for us.

#2about 4 minutes

How to enable file uploads using standard HTML

Use a form with a POST method, a file input, and the multipart/form-data encoding type to create a basic, accessible file upload feature.

#3about 8 minutes

Improving the user experience with JavaScript form submissions

Intercept HTML form submissions with JavaScript to prevent page reloads and create a smoother user experience while maintaining progressive enhancement.

#4about 7 minutes

Receiving and processing uploaded files in Node.js

Avoid loading large files into memory by using streaming libraries like Formidable to efficiently parse multipart form data and save files to disk.

#5about 8 minutes

Reducing storage costs with object storage solutions

Use S3-compatible object storage as a centralized, scalable, and cost-effective solution for storing user-uploaded files instead of server disk space.

#6about 5 minutes

Optimizing file delivery performance with a CDN

A Content Delivery Network (CDN) caches files on servers globally, reducing latency and delivering assets to users much faster.

#7about 17 minutes

Securing file uploads and protecting against malware

Follow security best practices like file name sanitization, size limits, and content validation, and implement a background process for malware scanning.

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