Random score combine with boost?

Elastic Stack Elasticsearch
1

I am building a iOS app with Firebase, and using ElasticSearch as a search engine to get more advanced queries.

I am trying to achieve a system where I can get a random record from the index, based on a query. I have already got this working using the "random_score" function with a seed.

So all documents should right now have equal chance of being selected. Is it possible to add a boost or something(sorry, I am new to ES)?

Let's say the the document has the field "boost_enabled" and it set to true, the document will be 3 times more likely to be selected, so "increasing" the chance of being selected as a random?

So in theory it should look like this:

Documents that matches the query:

"document1"
"document2"
"document3"
They all have an equal chance of being selected (33%)

What I wish to achieve is if "document1" has the field "boost_enabled" = true

It should look like this:

"document1"
"document1"
"document1"
"document2"
"document3"
So now "document1" is 3 times more likely to be selected as the random record.

Would really appreciate some help.

/ Mads

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