example_suggester.txt

POST test/_doc
{
  "category_suggest": {
    "input": [
      "Automotive",
      "Auto"
    ]
  }
}

POST test/_doc
{
  "category_suggest": {
    "input": [
      "Automotive",
      "Car"
    ]
  }
}

GET test/_search
{
  "_source": false, 
  "suggest": {
    "suggestions": {
      "prefix": "aut",
      "completion": {
        "field": "category_suggest",
        "size": 5,
        "skip_duplicates": false
      }
    }
  }
}

DELETE test

PUT test
{
  "settings": {
    "index": {
      "analysis": {
        "analyzer": {
          "autocomplete_analyzer": {
            "type": "custom",
            "tokenizer": "standard",
            "filter": [
              "lowercase"
            ]
          }
        }
      }
    }
  },
  "mappings": {
    "properties": {
      "name": {
        "type": "text"
      },
      "category": {
        "type": "text"
      },
      "category_suggest": {
        "type": "completion",
        "analyzer": "autocomplete_analyzer"
      }
    }
  }
}