Handling files in JavaScript goes far beyond fs.readFile. In this practical talk, you'll learn how to process large files efficiently using streams, pipeline(), async iterators, and backpressure handling — all without crashing your server. From real-time CSV parsing to ZIP decompression and production-safe file cleanup, we’ll explore powerful patterns that make your Node.js apps faster, safer, and ready for scale.
This talk has been presented at JSNation US 2025, check out the latest edition of this JavaScript Conference.