If C++ exceptions are being used in your codebase, it can be cleaner to call functions that throw.
Glaze provides a header glaze_exceptions.hpp, which provides an API to use Glaze with exceptions. This header will be disabled if -fno-exceptions is specified.
Glaze functions that throw exceptions use the namespace
glz::ex
std::string buffer{};
glz::ex::read_json(obj, buffer); // will throw on a read error