[root@sandbox views]# cat files.json
[ {
"ViewInstanceInfo" : {
    "properties" : {
	"webhdfs.url" : "webhdfs://dataworker.hortonworks.com:50070"
    }
  }
} ]
[root@sandbox views]# curl -X POST --user admin:admin -H X-Requested-By:123 127.0.0.1:8080/api/v1/views/FILES/versions/0.1.0/instances/MyFiles --data "@files.json"
{
  "status" : 400,
  "message" : "{\"propertyResults\":{\"dataworker.defaultFs\":{\"valid\":false,\"detail\":\"No property values exist for the required parameter dataworker.defaultFs.\"}},\"valid\":false,\"detail\":\"The instance has invalid properties.\"}"
}[root@sandbox views]#