Update SupplyRequest with identifier {identifier}

{
  "resourceType": "SupplyRequest",
  "id": "simpleorder",
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative with Details</b></p><p><b>id</b>: simpleorder</p><p><b>identifier</b>: Order10284</p><p><b>status</b>: active</p><p><b>category</b>: Central Stock Resupply <span>(Details : {[not stated] code 'central' = 'central', given as 'Central Stock Resupply'})</span></p><p><b>priority</b>: asap</p><p><b>item</b>: Blood collect tubes blue cap <span>(Details : {[not stated] code 'BlueTubes' = 'BlueTubes', given as 'Blood collect tubes blue cap'})</span></p><p><b>quantity</b>: 10</p><p><b>occurrence</b>: 31/12/2016</p><p><b>authoredOn</b>: 31/12/2016</p><p><b>requester</b>: Henry Seven</p><p><b>supplier</b>: Vendor1</p><p><b>reasonCode</b>: Refill due to low stock <span>(Details : {[not stated] code 'stock_low' = 'stock_low', given as 'Refill due to low stock'})</span></p><p><b>deliverFrom</b>: Location 1</p><p><b>deliverTo</b>: GoodHealth Clinic Receiving</p></div>"
  },
  "identifier": [
    {
      "value": "Order10284"
    }
  ],
  "status": "active",
  "category": {
    "coding": [
      {
        "code": "central",
        "display": "Central Stock Resupply"
      }
    ]
  },
  "priority": "asap",
  "itemCodeableConcept": {
    "coding": [
      {
        "code": "BlueTubes",
        "display": "Blood collect tubes blue cap"
      }
    ]
  },
  "quantity": {
    "value": 10
  },
  "occurrenceDateTime": "2016-12-31",
  "authoredOn": "2016-12-31",
  "requester": {
    "display": "Henry Seven"
  },
  "supplier": [
    {
      "display": "Vendor1"
    }
  ],
  "reasonCode": [
    {
      "coding": [
        {
          "code": "stock_low",
          "display": "Refill due to low stock"
        }
      ]
    }
  ],
  "deliverFrom": {
    "display": "Location 1"
  },
  "deliverTo": {
    "display": "GoodHealth Clinic Receiving"
  }
}