Greentic Interfaces Wasmtime Runtime Helpers

greentic-interfaces-wasmtime provides the Wasmtime integration layer for the Greentic platform. It wires host services into a Wasmtime component linker, offers convenience helpers for building engines, and exposes mapper utilities that bridge the ABI structs published by greentic-interfaces with the richer models from greentic-types.

Feature flags

• stable-wasmtime (default): builds against Wasmtime releases < 38, compatible with the stable Rust channel.
• nightly-wasmtime: switches to Wasmtime 38.0.3, which currently requires the nightly toolchain due to edition 2024 support and fiber features.

Enable the right flag depending on your toolchain:

[dependencies]
greentic-interfaces-wasmtime = { version = "0.1", default-features = false, features = ["nightly-wasmtime"] }

Quick start

use greentic_interfaces_wasmtime::{build_engine, EngineOptions, LinkerBuilder};

let engine = build_engine(EngineOptions::default())?;
let mut linker = LinkerBuilder::new(&engine).finish();
// Register host services as needed:
// greentic_interfaces_wasmtime::add_secrets_store_to_linker(&mut linker, |state| &mut state.secrets)?;

The crate currently focuses on ergonomic wiring and leaves host trait implementations to downstream crates.