Does ElasticSearch support define fixed ranking strategy?

Question

Everytime I use the same query, such as code below:

{
"bool": {
    "should": [
        {
          "multi_match" : {
            "query":      "Will Smith",
            "type":       "cross_fields",
            "fields":     [ "first", "last" ],
            "minimum_should_match": "50%" 
          }
        },
        {
          "multi_match" : {
            "query":      "Will Smith",
            "type":       "cross_fields",
            "fields":     [ "*.edge" ]
          }
        }
    ]
}}

Each time I use different query word, but the params are the same.

Does elasticsearch support this kind of strategy we can define, like ranking strategy? Each time I just need to input the query.

Answer 1

Elasticsearch supports template query where you can register a query and pass the query string as a param

Example:

1. Create a .scripts index if it doesn't exists

PUT <server::port>/.scripts

2. Register the query template for the above case

 PUT <server::port>/_search/template/<template_name>
 {    
  "template": {
  "query": {
     "bool": {
        "should": [
           {
              "multi_match": {
                 "query": "{{query_string}}",
                 "type": "cross_fields",
                 "fields": [
                    "first",
                    "last"
                 ],
                 "minimum_should_match": "50%"
              }
           },
           {
              "multi_match": {
                 "query": "{query_string}",
                 "type": "cross_fields",
                 "fields": [
                    "*.edge"
                 ]
              }
           }
        ]
     }
  }    

} }

3. Invoke search template with query_string param

 POST <server::port>/index>/_search/template {    
    "template": {
        "id": "<template_name>"    
    },    
    "params": {
        "query_string": "will smith"    
    }      
 }