I Fired My Entire Node.js Stack — Rust Rebuilt It in 3 Weeks (The Ugly Truth)
The author transitioned their API from Node.js to Rust to address performance issues. After the migration, response times improved significantly, but the development process became more complex and time-consuming. The shift resulted in lower costs and better performance, but required a complete change in approach to backend development.
- ▪The API faced 50ms P99 latencies and spiked to 850ms under load.
- ▪After migrating to Rust, P99 latency dropped to 8ms and memory usage decreased from 4GB to 180MB per instance.
- ▪The transition reduced monthly compute costs from $12,000 to $900.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3844864) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } speed engineer Posted on May 26 • Originally published at Medium I Fired My Entire Node.js Stack — Rust Rebuilt It in 3 Weeks (The Ugly Truth) #rust #javascript #node Our API was drowning under 50ms P99 latencies. I rewrote everything in Rust expecting miracles. Got 8ms response times and three months of… I Fired My Entire Node.js Stack — Rust Rebuilt It in 3 Weeks (The Ugly Truth) Our API was drowning under 50ms P99 latencies. I rewrote everything in Rust expecting miracles.
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