Crate spin_sdk 

The Rust Spin SDK.

This crate is the main entry point for building Spin components in Rust. Each capability is exposed as a feature-gated module. All features are enabled by default; disable default-features and pick only what you need to slim down compile times.

The http_service and redis_subscriber attribute macros generate the boilerplate required to expose a component to the Spin runtime.

Re-exports

pub use wasip3;

pub use wasip3::wit_bindgen;

Modules

httphttp

Incoming and outgoing HTTP requests.

key_valuekey-value

Persistent key-value storage. Spin key-value persistent storage.

llmllm

Large-language-model inference.

mqttmqtt

MQTT message publishing. MQTT message publishing.

mysqlmysql

MySQL database access. MySQL relational database storage.

pgpg

PostgreSQL database access. Postgres relational database storage.

redisredis

Redis storage and pub/sub. Redis storage and message publishing.

sqlitesqlite

SQLite database access.

time

Time-related functions.

variablesvariables

Application variable lookup. Component variables must be defined in the application manifest, in the [component.<name>.variables] section. Component variables typically use template syntax to derive values from application variables, which are the only variables that may be overridden directly (for example, on the Spin command line).

Macros

dependencies

Re-export entrypoint macros This macro generates code from a Spin components dependencies using wit-bindgen. During expansion the macro will check for existence of a spin-dependencies.wit in the developers project directory and if it is present (used to indicate the presence of dependencies in the manifest) will invoke wit-bindgen to generate the bindings.

Attribute Macros

http_service

Re-export entrypoint macros Marks an async fn as an HTTP component entrypoint for Spin.

redis_subscriber

Re-export entrypoint macros The entrypoint to a Spin Redis component.