http-aws-es | Use the elasticsearch-js client with Amazon ES | AWS library

I am trying to query an AWS ElasticSearch Domain from a Lambda worker.

To do so, I am using http-aws-es and the main javascript client for Elastic Search.

I query documents with the following relevant fields:

• A ref field - String
• A status field - String ENUM (REMOVED, BLOCKED, PUBLISHED, PENDING, VERIFIED)
• A field field - String Array
• A thematics field - String Array

What I want to achieve is:

1. Filter all documents that are not either PUBLISHED or VERIFIED or where the ref field is set
2. Return the best matches with my keywwords argument (string array) relatively to values in field and thematics
3. Sort to put documents with PUBLISHED status first
4. Limit the number of results to 20

I found the more_like_this operator, and gave it a try. I build step by step my query and the actual version, at least, doesn't return an error, but no documents are returned. It still misses the ref filter + #3 and #4 from above. Here is the query :