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Spin QuickStart

setup Spin binary to be used

% spin templates install --git https://github.com/fermyon/spin

% mkdir sample-http-rust ; cd sample-http-rust

% spin new http-rust
  Project description: a sample Spin HTTP Component in Rust
  Project name: sample-http-rust
  HTTP base: /
  HTTP path: /demo

% tree .
[drwxr-xr-x abhishekkr 4.0K]  .
├── [-rw-r--r-- abhishekkr  682]  "Cargo.toml"
├── [-rw-r--r-- abhishekkr  414]  "spin.toml"
└── [drwxr-xr-x abhishekkr 4.0K]  "src"/
    └── [-rw-r--r-- abhishekkr  369]  "lib.rs"

  • spin.toml defines [[component]] with /demo route trigger & source for sample_http_rust.wasm

  • src/lib.rs has #http_component macro annotated over fn sample_http_rust

  • spin build to compile source; spin buil --up to compile and start the app; spin up to just run

  • http://127.0.0.1:3000/demo as default serve

  • for detailed logs use export RUST_LOG=spin=trace

  • can add more components via spin.toml

  • can have different component under different projects; with an external spin.toml; as under sample-app