Backend development: Rust

Sefism.Backend development: Rust

Tauseef Fayyaz

A to Z

Glossary

Every concept in this sheet, plus the smaller terms it uses. Select a concept to open its card.

A

async/await on Tokio: An async function returns a future, which does nothing until it is awaited.
Axum routers, extractors and IntoResponse: An Axum handler is an async function whose arguments are extractors: Path, Query, Json and State pull typed values out of the request.

C

Cargo, crates and features: Cargo builds, tests and runs Rust code.

G

Git commits and branches: Git records snapshots of your project as commits.

O

Ownership and borrowing: Every value has one owner and is dropped when the owner goes out of scope.

P

Pull requests: A pull request proposes merging a branch into main and shows the diff, CI results and review comments in one place.

R

Result, Option and the ? operator: A function that can fail returns Result<T, E>, and a value that may be missing is an Option<T>.

S

Shared state: Arc, Mutex, Send and Sync: Arc<T> shares one value between tasks by counting references, and Mutex<T> or RwLock<T> lets them change it one at a time.
SQLx: checked queries and a pool: SQLx runs plain SQL asynchronously.
Structs, enums and pattern matching: Structs group named fields.

T

Terminal essentials: A shell runs commands such as cd, ls, cat, grep and curl, and pipes (|) feed one command's output into the next.
Traits and generics: A trait lists methods a type promises to have, implemented with impl Trait for Type.