Elasticsearch integration with Mongo db

Hi how can I integrate elasticsearch with mongo db

step by step doc is available or not

If you act a more specific question you're more likely to get help. "Integrate ES with MongoDB" can mean many different things.

needto know how to integrate the mongo db wirh elasticsearch and
search documents !

Thanks and Regards

It seems like you want to index the contents of a MongoDB database in ES. Have a look at https://github.com/phutchins/logstash-input-mongodb.