Rust Async Patterns

What it does

The rust-async-patterns skill provides guidance on implementing asynchronous programming patterns in Rust, including handling concurrency, managing tasks with tokio, and using async/await effectively. It covers best practices for writing efficient and safe non-blocking code.

When to use it

• Building high-performance backend services that require concurrent I/O operations.
• Developing networked applications or APIs that need to handle multiple requests simultaneously.
• Writing Rust programs that interact with external systems like databases, websockets, or HTTP clients asynchronously.

Key capabilities

• Explains async/await syntax and its usage in Rust.
• Demonstrates how to use tokio for asynchronous task management.
• Covers best practices for error handling in async code.
• Provides examples of common patterns such as futures, streams, and channels.

Example prompts

• "How do I write an async HTTP server in Rust using tokio?"
• "What are the best practices for managing multiple async tasks in a Rust application?"
• "Can you show me how to use async/await with a PostgreSQL database in Rust?"

Tips & gotchas

• Ensure your project is set up with tokio as the runtime by adding it to your Cargo.toml.
• Be mindful of blocking operations—use .spawn_blocking() for CPU-intensive tasks that shouldn't run on the async thread pool.