Re: [Boost-users] [json] Using boost.json with boost.beast

On Tue, 22 Dec 2020 at 21:25, Richard Hodges wrote:

On Tue, 22 Dec 2020 at 21:21, Sean Farrow via Boost-users < boost-users@lists.boost.org> wrote:

...

Hi,

Are there any samples of using boost.json to deserialize boost.beast responses?

Not in the documentation of the two libraries as they are treated as separate self-contained concerns.

However it’s quite trivial.

Here's a simple example: extern void use_json(boost::json::value const& jv); void handle_read_text(boost::beast::flat_buffer& buf) { auto range = buf.data(); auto chars = boost::json::string_view( reinterpret_cast(range.data()), range.size()); auto dom = boost::json::parse(chars); use_json(dom); } https://godbolt.org/z/bxcKea The maintainers of beast and json are always available on the cpplang slack, in channel #beast. The data() member of a flat_buffer contains a pointer and a size. Cast the

pointer to const char * and use it and the size to construct a json::string_view. From there you can call json::parse to get your json::value.

Thanks,

...

Sean. _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users

-- Richard Hodges hodges.r@gmail.com office: +442032898513 home: +376841522 mobile: +376380212

-- Richard Hodges hodges.r@gmail.com office: +442032898513 home: +376841522 mobile: +376380212