problem use tinyobjloader load model

Hello,
i’m importing model from wavefront by using https://github.com/syoyo/tinyobjloader
to view model on iphone , but no thing rendered , i can’t figure what i am doing wrong.
i used solution of lummxx in thread : https://www.opengl.org/discussion_boards/showthread.php/184817-Cant-figure-out-what-im-doing-wrong-with-indexes?highlight=

Thank you for help.
here is code : https://gist.github.com/siliconprime-chinh/e0d1b560aec90dc81df0.