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Node.js applications have become incredibly popular in recent years, thanks to Node’s lightweight and efficient model. However, that efficiency can come back to bite you if your application architecture isn’t designed properly.
A poorly-architected Node app can lead to inconsistent performance, unexpected errors, and difficulty scaling when traffic spikes.
Thankfully, there are several ways to craft a robust, high-performing Node app capable of handling substantial production loads.
Master Async Patterns
Node is famous for its asynchronous, event-driven architecture. While this provides great throughput, the async nature of Node can also produce tricky edge cases or race conditions if your application has a lot of concurrent requests.
Mastering async flow control is critical for performance and stability. Make sure to handle promises correctly, avoid callback hell, and leverage async/await for cleaner async code. Using a control flow library like Async can also greatly help manage async execution.
