Trait SchemaValidate 

pub trait SchemaValidate {
    // Required method
    fn schema_metadata() -> SchemaMetadata;
}

Compile-time marker for message types that declare schema metadata.

Publishing methods require this trait in addition to serde::Serialize. That bound ensures a type that is merely serializable cannot be published to a typed liminal channel unless it also declares the schema metadata needed by the bus for publish-time validation.

Implement the trait manually today:

use liminal_sdk::{SchemaMetadata, SchemaValidate};
use serde::Serialize;

#[derive(Serialize)]
struct Created {
    id: String,
}

impl SchemaValidate for Created {
    fn schema_metadata() -> SchemaMetadata {
        SchemaMetadata::new(
            "example.created",
            "1",
            br#"{"type":"object","required":["id"]}"#.as_slice(),
        )
    }
}

A future #[derive(SchemaValidate)] macro is expected to generate this same implementation for supported schema-generation workflows. This crate does not provide a blanket implementation for all serializable types because doing so would remove the compile-time enforcement required by typed channels.

Required Methods

fn schema_metadata() -> SchemaMetadata

Returns this message type’s schema metadata.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors