umari 0.2.1

SDK for building event-sourced WASM components for the Umari runtime
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package umari:command@0.1.0;

/// The command world - what a command module must implement
world command {
    import executor;

    use types.{error, execute-output};
    use umari:common/types@0.1.0.{event-query, json, stored-event};

    /// An optional json schema for the command input.
    export schema: func() -> option<json>;

    /// Build a query from command input to fetch relevant events
    /// This determines what events need to be loaded from the event store
    export query: func(input: json) -> result<event-query, error>;

    /// Execute the command with input and fetched events
    /// Returns events to be emitted/persisted
    export execute: func(input: json, events: list<stored-event>) -> result<execute-output, error>;
}