Prefix query in Elasticsearch

prefix.json

{
    "query": {
      "bool": {
        "must": [
          {
            "prefix": {"business_name_filtered": "johukum"}
          }
        ]
      }
    } ,
    "suggest": {
        "namesuggester": {
            "text": "johukum",
            "term": {
                "field": "business_name"
            }
        }
    },
    "from": 0,
    "size": 5,
    "sort": [
        {
            "_geo_distance": {
                "geo": {
                    "lat": 23.761546526247017,
                    "lon": 90.43369546206912
                },
                "order": "asc",
                "unit": "km"
            }
        }
    ]
}