Remove body member from Request

Per cpp core guidelines, these should be methods.

Tested: on last patchset of the series.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: Ib16479db9d2b68da68e7ad6e825c7e205c64f1de
diff --git a/http/parsing.hpp b/http/parsing.hpp
index df63fca..f16d890 100644
--- a/http/parsing.hpp
+++ b/http/parsing.hpp
@@ -29,7 +29,7 @@
         return JsonParseResult::BadContentType;
 #endif
     }
-    jsonOut = nlohmann::json::parse(req.body, nullptr, false);
+    jsonOut = nlohmann::json::parse(req.body(), nullptr, false);
     if (jsonOut.is_discarded())
     {
         BMCWEB_LOG_WARNING << "Failed to parse json in request";