| Value | Description | 
|---|---|
| first | Insert the new data as the new first entry | 
| last | Insert the new data as the new last entry | 
| before | Insert the new data before the insertion point, as specified by the value of the point parameter | 
| after | Insert the new data after the insertion point, as specified by the value of the point parameter | 
The default value is last.

Note
The insert parameter is supported only for the POST and PUT methods. It is also only supported if the target resource is a data resource, and that data represents a YANG list or leaf-list that is ordered-by user.A point query parameter MUST also
        be present for the insert
        query parameter if the values before or after are used, otherwise a 400 Bad Request status is
        returned.
POST  /rest/restconf/data/ietf-access-control-list:acls/acl=acl/aces?insert=first
    HTTP/1.1
    Host: 10.50.130.172
    Content-Type: application/yang-data+json
    {
        ietf-access-control-list:aces": [    
        {
            "matches": {
                "eth": {          
                    "ethertype": 0       
                }      
            },       
            "name": "ace0",
            "actions": {        
            "forwarding": "drop"     
            }   
       }
      ]
    }
        {
  "ietf-access-control-list:aces": {
    "ace": [
      {
        "actions": {
          "forwarding": "drop"
        }, 
        "matches": {
          "eth": {
            "ethertype": 0
          }
        }, 
        "name": "ace0", 
        "statistics": {
          "matched-packets": 0
        }
      }, 
      {
        "actions": {
          "forwarding": "drop"
        }, 
        "matches": {
          "eth": {
            "ethertype": 1
          }
        }, 
        "name": "ace1", 
        "statistics": {
          "matched-packets": 0
        }
      }, 
      {
        "actions": {
          "forwarding": "drop"
        }, 
        "matches": {
          "eth": {
            "ethertype": 288
          }
        }, 
        "name": "ace2", 
        "statistics": {
          "matched-packets": 0
        }
      }, 
      {
        "actions": {
          "forwarding": "drop"
        }, 
        "matches": {
          "eth": {
            "ethertype": 3
          }
        }, 
        "name": "ace3", 
        "statistics": {
          "matched-packets": 0
        }
      }, 
      {
        "actions": {
          "forwarding": "drop"
        }, 
        "matches": {
          "eth": {
            "ethertype": 4
          }
        }, 
        "name": "ace4", 
        "statistics": {
          "matched-packets": 0
        }
      }
    ]
  }
}