boost::taar::multipart_boundary — Extract the boundary parameter of a multipart/form-data Content-Type.
multipart/form-data
// In header: <boost/taar/core/multipart.hpp> std::optional< std::string > multipart_boundary(std::string_view content_type);
Returns:
The boundary, or std::nullopt if content_type is not multipart/form-data or lacks a boundary.
std::nullopt
