本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# 如何尋找turn-by-turn路由
<a name="how-to-find-turn-by-turn-route"></a>

CalculateRoutes API 可協助您尋找原始伺服器和目的地之間的最佳路由，以及驅動程式休息的最佳機會。它支援交通模式，例如汽車、卡車、行人和摩托車。它還支援最多 25 個航點 （中途停靠點），包括原始伺服器和目的地，只有幾個限制條件。

## 潛在的使用案例
<a name="potential-use-cases-turn-by-turn"></a>
+ **建立導覽行動應用程式：**使用 API turn-by-turn導覽指示。
+ 在 **Web 平台上顯示指示：**顯示 Web 應用程式的詳細路由指引，以協助您導覽。

## 範例
<a name="calculate-routes-examples-turn-by-turn"></a>

### 使用 Car TravelMode 計算路由
<a name="calculate-routes-car-mode-turn-by-turn"></a>

------
#### [ Sample request ]

```
{
    "Origin": [
        -123.118105,
        49.282423
    ],
    "Destination": [
        -123.020098,
        49.232872
    ],
    "TravelStepType": "TurnByTurn",
    "TravelMode": "Car"
}
```

------
#### [ Sample response ]

```
{
    "LegGeometryFormat": "FlexiblePolyline",
    "Notices": [],
    "Routes": [
        {
            "Legs": [
                {
                    "Geometry": {
                        "Polyline": "Redacted"
                    },
                    "TravelMode": "Car",
                    "Type": "Vehicle",
                    "VehicleLegDetails": {
                        "Arrival": {
                            "Place": {
                                "Position": [-123.0203051, 49.2328499]
                            }
                        },
                        "Departure": {
                            "Place": {
                                "Position": [-123.1180883, 49.2824349]
                            }
                        },
                        "TravelSteps": [
                            {
                                "Distance": 1288,
                                "Duration": 102,
                                "Type": "Depart",
                                "NextRoad": {
                                    "RoadName": "W Georgia St",
                                    "RouteNumber": "HWY-1A"
                                }
                            },
                            {
                                "Distance": 262,
                                "Duration": 24,
                                "Type": "Keep",
                                "NextRoad": {
                                    "RoadName": "Main St",
                                    "RouteNumber": "HWY-1A"
                                }
                            },
                            {
                                "Distance": 1356,
                                "Duration": 134,
                                "Type": "Turn",
                                "NextRoad": {
                                    "RoadName": "Main St",
                                    "RouteNumber": "HWY-1A"
                                }
                            },
                            {
                                "Distance": 7092,
                                "Duration": 568,
                                "Type": "Keep",
                                "NextRoad": {
                                    "RoadName": "Kingsway",
                                    "RouteNumber": "HWY-1A"
                                }
                            },
                            {
                                "Distance": 65,
                                "Duration": 26,
                                "Type": "Turn"
                            },
                            {
                                "Distance": 0,
                                "Duration": 0,
                                "Type": "Arrive"
                            }
                        ]
                    }
                }
            ]
        }
    ]
}
```

------
#### [ cURL ]

```
curl --request POST \
  --url 'https://routes.geo.eu-central-1.amazonaws.com/v2/routes?key=Your_key' \
  --header 'Content-Type: application/json' \
  --data '{
  "Origin": [
    -123.118105,
    49.282423
  ],
  "Destination": [
    -123.020098,
    49.232872
  ],
  "TravelStepType": "TurnByTurn",
  "TravelMode": "Car"
}'
```

------
#### [ AWS CLI ]

```
aws geo-routes calculate-routes --key ${YourKey} \
--origin -123.118105 49.282423 \
--destination -123.020098 49.232872 \
--travel-step-type "TurnByTurn" \
--travel-mode "Car"
```

------