metadata.hpp

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#ifndef KAGOME_CORE_RUNTIME_METADATA_HPP
#define KAGOME_CORE_RUNTIME_METADATA_HPP

#include <optional>
#include <outcome/outcome.hpp>
#include "primitives/common.hpp"
#include "primitives/opaque_metadata.hpp"

namespace kagome::runtime {

  class Metadata {
   protected:
    using OpaqueMetadata = primitives::OpaqueMetadata;

   public:
    virtual ~Metadata() = default;

    virtual outcome::result<OpaqueMetadata> metadata(
        const primitives::BlockHash &block_hash) = 0;
  };

}  // namespace kagome::runtime

#endif  // KAGOME_CORE_RUNTIME_METADATA_HPP