typescript-async-patterns

Error handling in async/await uses try-catch blocks to catch Promise rejections and exceptions. Wrap await expressions in try-catch to centralize error propagation, or use .catch() on Promises for structured error recovery and retry logic.

Compose async functions using pipe and chainable operations to build clean pipelines. TypeScript's type system enforces strong typing across composed Promises, ensuring predictable control flow and explicit error propagation between stages.

Async iterators enable type-safe iteration over async streams using for-await-of loops. They maintain strong typing while processing asynchronous data sequences, making them ideal for streaming scenarios and data-fetching pipelines.

Use a safeAsync wrapper to encapsulate Promise-returning functions with explicit error handling and result typing. This pattern maintains strong typing, enables chainable operations, and ensures predictable control flow in async workflows.

Async/await provides clearer control flow and error handling for sequential operations, while Promises excel at composition and parallel execution. Choose async/await for readable synchronous-style code; use Promises for complex multi-operation workflows.

Retry logic requires careful handling of exponential backoff, circuit breaking, and timeout management to avoid cascading failures. Type-safe wrappers help enforce consistent retry semantics, but improper configuration can mask underlying issues or create resource exhaustion.