$ curl localhost:9200
{
  "status" : 200,
  "name" : "Ezekiel",
  "version" : {
    "number" : "1.2.1",
    "build_hash" : "6c95b759f9e7ef0f8e17f77d850da43ce8a4b364",
    "build_timestamp" : "2014-06-03T15:02:52Z",
    "build_snapshot" : false,
    "lucene_version" : "4.8"
  },
  "tagline" : "You Know, for Search"
}

$ curl -XPUT localhost:9200/_template/test1 -d '{
    "template": "test1-*",
    "settings": {
        "index": {
            "mapper": {
                "dynamic": false
            }
        }
    }
}'
{"acknowledged":true}

$ curl -XGET 'localhost:9200/_template/test1?pretty'
{
  "test1" : {
    "order" : 0,
    "template" : "test1-*",
    "settings" : {
      "index.mapper.dynamic" : "false"
    },
    "mappings" : { },
    "aliases" : { }
  }
}

curl -XGET 'localhost:9200/_template/test1?pretty&flat_settings=false'
{
  "test1" : {
    "order" : 0,
    "template" : "test1-*",
    "settings" : {
      "index.mapper.dynamic" : "false"
    },
    "mappings" : { },
    "aliases" : { }
  }
}