Thanks for your feedback. have done some trials on Search::Elasticserach too. Module is working fine and looks good but was facing difficulties in making json for attachment (HTML,PDF, DOC file stored in a file system) mapper through the module (not found enough documentation). Probably I am missing something? I am using elastic 1.7 but upcoming version 2 is getting a lot of changes mainly how they index filesystem (river is deprecaited in 2.0) so probably Perl module will also get some updates also documentation.