wit-wire.wit

package metatype:wit-wire;

interface typegate-wire {
  hostcall: func(op-name: string, json: string) -> result<string, string>;
}

interface mat-wire {
  type json-str = string;

  record mat-info {
    op-name: string,
    mat-title: string,
    mat-hash: string,
    mat-data-json: string,
  }

  record init-args {
    metatype-version: string,
    expected-ops: list<mat-info>
  }

  record init-response {
    ok: bool
  }

  variant init-error {
    version-mismatch(string),
    unexpected-mat(mat-info),
    other(string)
  }

  init: func(args: init-args) -> result<init-response, init-error>;

  record handle-req {
    op-name: string,
    in-json: json-str,
  }

  variant handle-err {
    no-handler,
    in-json-err(string),
    handler-err(string),
  }

  handle: func(req: handle-req) -> result<json-str, handle-err>;
}

world wit-wire {
  import typegate-wire;

  export mat-wire;
}