dpp-plugin-traits

Host/guest ABI contract for Odal Node Wasm sector plugins.

no_std compatible. Defines the interface between the platform runtime (the Wasmtime host in dpp-engine) and sector-specific compliance rules compiled to wasm32-wasip1. This crate contains no business logic — only the shared types that both sides of the boundary agree on.

When to use this crate

You are authoring a new sector plugin (a Rust crate compiled to Wasm) and need the DppSectorPlugin trait.
You are building a Wasmtime host that loads sector plugins and need the ABI types for capability negotiation and field error reporting.

Example

use dpp_plugin_traits::{DppSectorPlugin, PluginMeta, PluginFieldError, AbiVersion};

struct BatteryPlugin;

impl DppSectorPlugin for BatteryPlugin {
    fn meta(&self) -> PluginMeta {
        PluginMeta {
            name: "sector-battery".into(),
            version: "0.1.0".into(),
            sector: "battery".into(),
            abi: AbiVersion::CURRENT,
            capabilities: Default::default(),
            schema_constraint: None,
        }
    }

    fn validate(&self, data: &[u8]) -> Vec<PluginFieldError> {
        // sector-specific validation logic
        vec![]
    }
}

Relationship to other crates

This crate has no workspace dependencies — it is self-contained by design so that plugin authors have a minimal, stable dependency.

Minimum Rust version

1.96 (MSRV is enforced in CI)

License