400 Bad request

[joshuacos1977 (josh)]

@bpricilla

{
   "indexName":"contact",
   "fields":[
      {
         "fieldName":"employeeid",
         "fieldType":"Keyword"
      },
      {
         "fieldName":"firstname"
      },
      {
         "fieldName":"lastname"
      },
      {
         "fieldName":"dob",
         "fieldType":"DateTime"
      }
   ]
}

is my request correct format ?I mean
http://localhost:9800/indices HTTP/1.1