Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
This is an older version of Boost and was released in 2018. The current version is 1.89.0.
The type of container used for the body.
using value_type = std::basic_string< CharT, Traits, Allocator >;
This determines the type of http::message::body when this body type is used
with a message container.