Integration elasticsearch in Hapijs based API

Elastic Stack Elasticsearch
1

I am developing an api using hapijs. My backend server is mysql. I wanted to use elastic search in my project. If anyone give me some advice on following scenarios that would be very much helpful for me. I am new both hapijs and elastic search.

  1. Integration with hapijs
  2. indexing mysql preexisting table
  3. How to use elastic search in api handler in hapijs