boost_uuid4.hpp

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#pragma once
 
/// @file userver/utils/boost_uuid4.hpp
/// @brief @copybrief utils::generators::GenerateBoostUuid()
 
#include <boost/uuid/uuid.hpp>
 
#include <fmt/core.h>
#include <userver/utils/fmt_compat.hpp>
 
USERVER_NAMESPACE_BEGIN
 
namespace utils {
 
/// Generators
namespace generators {
 
/// Generates UUIDv4
boost::uuids::uuid GenerateBoostUuid();
 
}  // namespace generators
 
/// Parse string into boost::uuids::uuid
boost::uuids::uuid BoostUuidFromString(std::string_view str);
 
/// Serialize boost::uuids::uuid to string
std::string ToString(const boost::uuids::uuid&);
 
}  // namespace utils
 
USERVER_NAMESPACE_END
 
template <>
struct fmt::formatter<boost::uuids::uuid> {
  constexpr static auto parse(format_parse_context& ctx)
      -> decltype(ctx.begin()) {
    return ctx.begin();
  }
 
  template <typename FormatContext>
  auto format(const boost::uuids::uuid& uuid,
              FormatContext& ctx) USERVER_FMT_CONST {
    return fmt::format_to(ctx.out(), "{}",
                          USERVER_NAMESPACE::utils::ToString(uuid));
  }
};