ElasticSearch setup for searching tags

es60_tags_search.js

// DELETE my-index

// PUT my-index
{
  "settings": {
    "analysis": {
      "analyzer": {
        "auto_completion_analyzer": {
          "type": "custom",
          "filter": [
            "lowercase",
            "auto_completion_filter"
          ],
          "tokenizer": "keyword"
        }
      },
      "filter": {
        "auto_completion_filter": {
          // "type": "edge_ngram",
          "type": "ngram",
          "min_gram": 1,
          "max_gram": 24
        }
      }
    }
  },
  "mappings": {
    "product": {
      "properties": {
        "tag": {
          "type": "text",
          "fields": {
            "raw": {
              "type": "keyword"
            },
            "completion": {
              "type": "text",
              "analyzer": "auto_completion_analyzer",
              "search_analyzer": "standard"
            }
          }
        }
      }
    }
  }
}

// POST my-index/product/_bulk
{"index":{}}
{"heroname": "John Deep", tag":"super"}
{"index":{}}
{"heroname": "Johny Stalone", "tag":"supreme"}
{"index":{}}
{"heroname": "Tony Stoned", "tag":"bad"}
{"index":{}}
{"heroname": "Stony Stoned", "tag":"badass"}
{"index":{}}
{"heroname": "Andy Deep", tag":"super"}
{"index":{}}
{"heroname": "Andy Stalone", "tag":"supreme"}
{"index":{}}
{"heroname": "Andy Stoned", "tag":"bad"}
{"index":{}}
{"heroname": "Andy Stored", "tag":"badass"}
{"index":{}}
{"heroname": "Ben Deep", "tag":"SuPeR"}
{"index":{}}
{"heroname": "Ben Stalone", "tag":"sUpReMe"}
{"index":{}}
{"heroname": "Ben Stoned", "tag":"BAD_"}
{"index":{}}
{"heroname": "Ben Stored", "tag":"BaDa$$_"}


//GET my-index/product/_search
{
  "query": {"match_all": {}}
}

// GET my-index/product/_search
{
  "query": {
    "term": {
      "tag.completion": "ad"
    }
  },
  "size": 0,
  "aggs": {
    "suggestions": {
      "terms": {
        "field": "tag.raw"
      }
    }
  }
}