Fixed bug with json files content being escaped in api

After update to recent grape env['api.format'] does not work any more.
Use content_type for rendering raw json files content

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/api/api.rb b/lib/api/api.rb
index 283f7642f67..9022cf7375a 100644
--- a/lib/api/api.rb
+++ b/lib/api/api.rb
@@ -22,6 +22,8 @@ module API
     end
 
     format :json
+    content_type :txt, "text/plain"
+
     helpers APIHelpers
 
     mount Groups