如何从这里地图根据 wse api 对列表进行排序

问：

我正在后端 API 的 listView.builder 中显示带有时间的订单列表，但我需要从这里地图从 WSE API 的序列基础上对该列表进行排序，并希望显示与 mylist 互连的时间，这是我的模型List<Order> allOrderList; `

class Order {
  Order({
    this.id,
    this.fname,
    this.lname,
    this.streetAddress,
   this.city,
    this.state,
    this.zip,
    this.phone,
    this.orderId,
    this.storeId,
    this.statusKey,
    this.isBad,
this.Lat,
this.Lng,  
  });

  dynamic id;
  dynamic fname;
  dynamic lname;
  dynamic streetAddress;
dynamic city;
  dynamic state;
  int? zip;
  dynamic phone;
dynamic orderId;
  dynamic storeId;
  dynamic Lat;
  dynamic Lng;
  factory Order.fromJson(Map<String, dynamic> json) => Order(
        id: json["_id"],
        fname: json["fname"],
        lname: json["lname"],
        streetAddress: json["street_address"],
         city: json["city"],
        state: json["state"],
        zip: json["zip"],
        phone: json["phone"],
       orderId: json["order_id"],
        storeId: json["store_id"],
        totalBoxes: json["total_boxes"],
        Lat: json["lat"].toDouble(),
        Lng: json["lng"].toDouble(),
        
      );

  Map<String, dynamic> toJson() => {
        "_id": id,
        "fname": fname,
        "lname": lname,
        "street_address": streetAddress,
        "city": city,
        "state": state,
        "zip": zip,
        "phone": phone,
        "order_id": orderId,
        "store_id": storeId,
        "lat": Lat,
        "lng": Lng,
      
      };
}

这是 WSE 地图 API 的示例 `

{
    "results": [{
        "waypoints": [{
            "id": "WiesbadenCentralStation",
            "lat": 50.0715,
            "lng": 8.2434,
            "sequence": 0,
            "estimatedArrival": null,
            "estimatedDeparture": "2014-12-09T09:30:00+01:00",
            "fulfilledConstraints": []
        },
        {
            "id": "FranfurtCentralStation",
            "lat": 50.1073,
            "lng": 8.6647,
            "sequence": 1,
            "estimatedArrival": null,
            "estimatedDeparture": "2014-12-09T10:01:02+01:00",
            "fulfilledConstraints": []
        },
        {
            "id": "HanauCentralStation",
            "lat": 50.1218,
            "lng": 8.9298,
            "sequence": 2,
            "estimatedArrival": null,
            "estimatedDeparture": "2014-12-09T10:30:43+01:00",
            "fulfilledConstraints": []
        },
        {
            "id": "FrankfurtAirport",
            "lat": 50.0505,
            "lng": 8.5698,
            "sequence": 3,
            "estimatedArrival": null,
            "estimatedDeparture": "2014-12-09T10:56:10+01:00",
            "fulfilledConstraints": []
        },
        {
            "id": "DarmstadtCentralStation",
            "lat": 49.8728,
            "lng": 8.6326,
            "sequence": 4,
            "estimatedArrival": null,
            "estimatedDeparture": "2014-12-09T11:16:55+01:00",
            "fulfilledConstraints": []
        },
        {
            "id": "MainzCentralStation",
            "lat": 50.0021,
            "lng": 8.259,
            "sequence": 5,
            "estimatedArrival": null,
            "estimatedDeparture": null,
            "fulfilledConstraints": []
        }],
        "distance": "169262",
        "time": "8362",
        "interconnections": [{
            "fromWaypoint": "WiesbadenCentralStation",
            "toWaypoint": "FranfurtCentralStation",
            "distance": 36461.0,
            "time": 1862.0
        },
        {
            "fromWaypoint": "FranfurtCentralStation",
            "toWaypoint": "HanauCentralStation",
            "distance": 34485.0,
            "time": 1781.0
        },
        {
            "fromWaypoint": "HanauCentralStation",
            "toWaypoint": "FrankfurtAirport",
            "distance": 33489.0,
            "time": 1527.0
        },
        {
            "fromWaypoint": "FrankfurtAirport",
            "toWaypoint": "DarmstadtCentralStation",
            "distance": 26905.0,
            "time": 1245.0
        },
        {
            "fromWaypoint": "DarmstadtCentralStation",
            "toWaypoint": "MainzCentralStation",
            "distance": 37922.0,
            "time": 1947.0
        }],
        "description": "Targeted best time; with improvement for traffic"
    }],
    "8.1.11s": [],
    "processingTimeDesc": "1345ms",
    "responseCode": "200",
    "warnings": null,
    "requestId": null
}

` WSE API 中的 ID 是我的街道地址，我通过 WSE URL 发送，如 https://wps.hereapi.com/2/findsequence.json?app_id=my_app_id&app_code=myapp_code&start=Starting%20Location;37.785834,-122.406417&destination1=Ss%20Br0;37.35507,-82.81066&destination2=Ff%20John%20A%20Santore%20Way1;40.63348,-74.1043&destination3=Gorlitz%20Ct2;41.34471,-74.16784&improveFor=distance&mode=fastest;car;traffic:disabled;

我确实尝试了很多解决方案，但没有任何效果。