Add multi_match to Elastic Search Function Score Query

Question

Currently, I am only querying the "content" of a web page stored in elastic search for a keyword match. I would like to add the title to that equation. I am using the top code (under "MARRY THIS") and would like to somehow insert the bottom code ("WITH THIS") but can't seem to find an explanation on how to do so.

MARRY THIS

{
    "query": {
        "function_score": {
            "query": {
                "match": {
                    "content": "keyword"
                }
            },
            "functions": [{
                "field_value_factor": {
                    "field": "obls",
                    "factor": 0.5,
                    "modifier": "ln2p"
                }
            }]
        }
    },
    "from": "0",
    "size": "100"
}

WITH THIS

{
  "multi_match" : {
    "query":    "keyword", 
    "fields": [ "title^3", "content" ] 
  }
}

Thanks in advance!

Answer 1

I figured it out after a lot of trial and error, it looks like this:

{
    "query": {
        "function_score": {
            "query": {
                "multi_match": {
                    "query": "baseball",
                    "fields": ["content", "title"]
                }
            },
            "functions": [{
                "field_value_factor": {
                    "field": "obls",
                    "factor": 0.5,
                    "modifier": "ln2p"
                }
            }]
        }
    },
    "from": "10",
    "size": "100"
}