dotnet-async-patterns

Prevent deadlocks in ASP.NET Core by eliminating blocking calls like .Result or .Wait() and properly implementing the Task-based Asynchronous Pattern with full async/await propagation throughout the call stack.

Use ValueTask instead of Task for async optimization in high-frequency hot paths where operations often complete synchronously, avoiding unnecessary heap allocations while maintaining non-blocking I/O.

Propagate CancellationToken in dotnet background services by passing the token down through all asynchronous method signatures, ensuring parallel processing operations halt gracefully during shutdown.

ConfigureAwait improves scalability in Csharp data access layers by reducing unnecessary synchronization context switches, which is critical for non-blocking I/O operations in library code.

The best way to refactor synchronous data access into non-blocking operations is to replace blocking I/O calls with async/await, apply ConfigureAwait, and inject CancellationToken parameters for safe parallelism.

Async parallel processing causes synchronization context issues when mixing blocking calls with async workflows, requiring strict adherence to the Task-based Asynchronous Pattern and proper ConfigureAwait usage.