Learn RUST with Real Code Examples
Updated Nov 17, 2025
Practical Examples
Build a CLI tool using clap
Create a REST API with Axum/Actix
Write a WebAssembly module
Develop a multithreaded task scheduler
Troubleshooting
Fix borrow checker errors
Resolve conflicting lifetimes
Debug type mismatches
Check performance bottlenecks using cargo flamegraph
Testing Guide
Unit tests using #[test]
Integration tests in tests/ folder
Benchmarking with cargo bench
Property testing with proptest
Deployment Options
Static binaries
Cross-compiling to ARM
Deploying to WASM targets
Linux/macOS/Windows compatibility
Tools Ecosystem
Cargo package manager
Rust Analyzer
rustfmt and clippy
Crates.io ecosystem
MIRI and sanitizers
Integrations
FFI with C/C++
Compile to WebAssembly
Integration with Python via PyO3
Use in cloud with AWS Lambda Runtime
Productivity Tips
Use cargo-watch
Master pattern matching
Use Result everywhere for safety
Leverage crates.io effectively
Challenges
Build your own smart pointer
Recreate a mini Axum-like router
Implement a memory allocator
Build a WebAssembly game loop