package wasmeld:kv@0.1.0;

interface store {
  variant kv-error {
    invalid-key(string),
    value-too-large(u64),
    operation-failed(string),
  }

  get: func(key: string) -> result<option<list<u8>>, kv-error>;
  set: func(key: string, value: list<u8>) -> result<_, kv-error>;
  delete: func(key: string) -> result<_, kv-error>;
}

world kv-host {
  import store;
}