async-patterns

You can convert callbacks to async/await by wrapping legacy functions in Promise constructors and invoking them with the async/await syntax. This modernizes Node.js code, eliminating callback hell and enabling cleaner sequential and parallel execution.

Promises, async/await, streams, and event-driven flows are the best async patterns for I/O-bound workloads. They enable non-blocking operations, allowing server-side API services and data processing pipelines to scale efficiently.

Error handling with async/await and Promises uses try/catch blocks to catch rejected Promises. This prevents unhandled rejections and race conditions, providing a reliable way to manage errors in non-blocking Node.js applications.

Use streams instead of async/await when processing large datasets that exceed memory limits. Streams provide event-driven, non-blocking data chunking for data processing pipelines, whereas async/await is better for sequential and parallel execution of smaller I/O tasks.

You can run parallel async operations safely using Promise.all with async/await. This pattern executes concurrent non-blocking I/O tasks while applying consistent error handling to prevent race conditions in server-side Node.js applications.

Event-driven Node.js API services lose data during high traffic when async operations lack proper error handling or sequential execution. Applying async/await patterns and stream-based processing ensures non-blocking workloads handle backpressure correctly.