store hashes, not json strings

devops-service/app/api2/helpers/version_2.rb

@@ -36,8 +36,16 @@ module Devops
       # Save information about requests with methods POST, PUT, DELETE
       def insert_statistic msg=nil
         unless request.get?
+          # parse body
           request.body.rewind
-          body = request.body.read
+          raw_body = request.body.read
+          body = begin
+            ::JSON.parse(raw_body)
+          rescue ::JSON::ParserError
+            raw_body
+          end
+
+          # store statistic
           settings.mongo.insert_statistic request.env['REMOTE_USER'], request.path, request.request_method, body, response.status
         end
       end