csharp-async-patterns

To avoid async void in C#, use async Task for event handlers and apply proper error handling with try-catch blocks. This ensures exceptions propagate correctly and prevents application crashes from unobserved asynchronous failures.

The best way to use ConfigureAwait and CancellationToken in C# is to pass tokens through method parameters and apply ConfigureAwait(false) in library code. This maximizes throughput and allows cooperative cancellation of async operations.

You should use ValueTask instead of Task in C# when an asynchronous operation frequently completes synchronously. This reduces heap allocations and optimizes performance in high-throughput data layers and scalable services.

To use IAsyncEnumerable for asynchronous streams in C#, return IAsyncEnumerable<T> from your method and iterate with await foreach. This enables efficient, real-time asynchronous data streaming without buffering entire collections.

Your C# async code blocks the thread when using synchronous calls like .Result or .Wait() instead of await. Refactoring blocking methods into proper async/await patterns restores responsiveness and prevents deadlocks.

Yes, you can use async factory patterns in C# by creating static async methods that initialize objects asynchronously. This pattern is essential for scalable services requiring asynchronous data loading during construction.