Get Started - HERE platform

This section outlines how to quickly get started using the HERE Tour Planning API on the HERE platform.

1. Get a HERE Account
2. Register your App
3. Get an API Key
4. Send a Request

Get a HERE Account

If your organization has signed up for HERE Workspace or HERE Marketplace, contact your organization admin who can invite you to join the HERE platform organization established for your company. You can also request a free trial of the HERE platform if your company does not have an organization established for it. For more information, see the HERE platform pricing.

Register your App

To register your app, follow these steps:

1. Sign in to the HERE platform using your HERE account.
2. Open the Access Manager from the Launcher.
3. On the Apps tab, click Register new app and provide the requested information.
4. Click Register. The platform creates a new app with a unique app ID.

Get an API Key

To get an API key, follow these steps:

1. Sign in to the HERE platform using your HERE account.
2. Open the Access Manager from the Launcher.
3. On the Apps tab, click the app you created in the previous section, Register your App, or an existing group app for which you want to generate an API key.
4. On the Credentials tab, select API Keys then click Create API key to generate a maximum of two API Keys for your application authentication credentials. The API key is created and displayed.

Send a Request

The HERE Tour Planning API supports two types of requests, synchronous and asynchronous. All features are available for both synchronous and asynchronous requests, however synchronous requests have stricter limitations on jobs and fleet sizes.

Complexity of the problem vs. time required to solve it

Certain features make solving a vehicle routing problem more challenging, so that the algorithm needs more time to find a "good" solution. Such features are:

• The amount of jobs and vehicle types: the bigger amount means more complex problem
• Multi jobs
• Pickup and delivery jobs
• Restrictive time windows
• Insufficient total vehicle capacity in comparison to total job demand

Consider using asynchronous request with higher polling interval in such cases.

Synchronous Request

Using the synchronous request involves sending a request to the server and waiting for the response. The synchronous request has a limit of 250 jobs and 35 vehicle types. For larger problems, you can use an asynchronous request.

Create a problem definition and send a solution calculation request to the corresponding endpoint. If the request is valid, the service will start calculating and will return a solution once the calculation is completed. The following is an example of such a request:

POST https://tourplanning.hereapi.com/v3/problems
Authorization: Bearer <TOKEN>
Content-Type: application/json

Body:

{
  "plan": {
    "jobs": [
      {
        "id": "myJob",
        "tasks": {
          "deliveries": [
            {
              "places": [
                {
                  "location": {"lat": 52.46642, "lng": 13.28124},
                  "times": [["2020-07-04T10:00:00.000Z","2020-07-04T12:00:00.000Z"]],
                  "duration": 180
                }
              ],
              "demand": [1]
            }
          ]
        }
      }
    ]
  },
  "fleet": {
    "types": [
      {
        "id": "myVehicleType",
        "profile": "normal_car",
        "costs": {
          "distance": 0.0002,
          "time": 0.005,
          "fixed": 22
        },
        "shifts": [{
          "start": {
            "time": "2020-07-04T09:00:00Z",
            "location": {"lat": 52.52568, "lng": 13.45345}
          },
          "end": {
            "time": "2020-07-04T18:00:00Z",
            "location": {"lat": 52.52568, "lng": 13.45345}
          }
        }],
        "limits": {
          "maxDistance": 300000,
          "shiftTime": 28800
        },
        "capacity": [10],
        "amount": 1
      }
    ],
    "profiles": [{
      "name": "normal_car",
      "type": "car",
      "departureTime": "2020-07-04T09:15:00Z"
    }]
  },
  "configuration": {
    "termination": {
      "maxTime": 2,
      "stagnationTime": 1
    }
  }
}

Example of a response with a calculated solution:

{
  "statistic": {
    "cost": 54.459916,
    "distance": 35277,
    "duration": 5286,
    "times": {
      "driving": 5106,
      "serving": 180,
      "waiting": 0,
      "break": 0
    }
  },
  "tours": [
    {
      "vehicleId": "myVehicle_1",
      "typeId": "myVehicle",
      "stops": [
        {
          "location": {"lat": 52.52568, "lng": 13.45345},
          "time": {
            "arrival": "2020-07-04T09:19:01Z",
            "departure": "2020-07-04T09:19:01Z"
          },
          "load": [1],
          "activities": [
            {
              "jobId": "departure",
              "type": "departure"
            }
          ]
        },
        {
          "location": {"lat": 52.46642, "lng": 13.28124},
          "time": {
            "arrival": "2020-07-04T10:00:00Z",
            "departure": "2020-07-04T10:03:00Z"
          },
          "load": [0],
          "activities": [
            {
              "jobId": "myJob",
              "type": "delivery"
            }
          ]
        },
        {
          "location": {"lat": 52.52568, "lng": 13.45345},
          "time": {
            "arrival": "2020-07-04T10:47:07Z",
            "departure": "2020-07-04T10:47:07Z"
          },
          "load": [0],
          "activities": [
            {
              "jobId": "arrival",
              "type": "arrival"
            }
          ]
        }
      ],
      "statistic": {
        "cost": 54.459916,
        "distance": 35277,
        "duration": 5286,
        "times": {
          "driving": 5106,
          "serving": 180,
          "waiting": 0,
          "break": 0
        }
      }
    }
  ]
}

For a detailed explanation, see Solution.

If a request is not valid, then the corresponding error is returned:

{
  "title": "BAD_REQUEST",
  "status": 400,
  "code": "E613420",
  "cause": "Vehicle's arrival time is earlier than its departure time",
  "action": "Correct arrival time of 'vehicle' to be earlier than its departure",
  "correlationId": "<globally unique id>"
}

Asynchronous Request

The asynchronous request to receive a solution for a problem consists of several steps:

• Request a Solution for the Problem
• Check the Status of the Solution
• Download the Solution

Request a Solution for the Problem

Create a problem definition and send a solution calculation request to the corresponding endpoint:

POST https://tourplanning.hereapi.com/v3/problems/async
Authorization: Bearer <TOKEN>
Content-Type: application/json

Body:

{
  "plan": {
    "jobs": [
      {
        "id": "myJob",
        "tasks": {
          "deliveries": [
            {
              "places": [
                {
                  "location": {"lat": 52.46642, "lng": 13.28124},
                  "times": [["2020-07-04T10:00:00.000Z","2020-07-04T12:00:00.000Z"]],
                  "duration": 180
                }
              ],
              "demand": [1]
            }
          ]
        }
      }
    ]
  },
  "fleet": {
    "types": [
      {
        "id": "myVehicleType",
        "profile": "normal_car",
        "costs": {
          "distance": 0.0002,
          "time": 0.005,
          "fixed": 22
        },
        "shifts": [{
          "start": {
            "time": "2020-07-04T09:00:00Z",
            "location": {"lat": 52.52568, "lng": 13.45345}
          },
          "end": {
            "time": "2020-07-04T18:00:00Z",
            "location": {"lat": 52.52568, "lng": 13.45345}
          }
        }],
        "limits": {
          "maxDistance": 300000,
          "shiftTime": 28800
        },
        "capacity": [10],
        "amount": 1
      }
    ],
    "profiles": [{
      "name": "normal_car",
      "type": "car",
      "departureTime": "2020-07-04T09:15:00Z"
    }]
  },
  "configuration": {
    "termination": {
      "maxTime": 2,
      "stagnationTime": 1
    }
  }
}

The service will return the following response body:

{
    "statusId": "<globally unique id>",
    "href": "https://tourplanning.hereapi.com/v3/status/<same as in statusId>"
}

The elements in the response are:

• statusId — A unique identifier of the status which is used for tracking the solution calculation status and for downloading the solution result.
• href — The URL for polling the status.

Check the Status of the Solution

To get the status of a solution calculation for a given problem ID, use the href obtained when submitting the request:

> GET https://tourplanning.hereapi.com/v3/status/<statusId>
> Authorization: Bearer <token>
---
< HTTP/1.1 200 OK
< Content-Type: application/json

Body:

{
    "status": "pending"
}

If you get status pending or inProgress, then you should keep polling until the calculation is finished and a status of success, timeout, or failure is returned.

A response with success returns a resource link to download the calculated solution:

{
    "status": "success",
    "resource": {
      "resourceId": "<globally unique id>",
      "href": "https://tourplanning.hereapi.com/v3/problems/<same as resourceId>/solution"
    }
}

A response with failure returns an error object:

{
    "status": "failure",
    "error": {
      "message": "There was an error solving the problem"
    }
}

You can use the statusId to get error details via the solution endpoint as described in the following section.

Download the Solution

If the status of a solution calculation is success, the calculated solution is available using the ID provided in the resourceId element which is effectively a problemId:

> GET https://tourplanning.hereapi.com/v3/problems/<problemId>/solution
> Content-Type: application/json

Response body:

{
  "statistic": {
    "cost": 54.459916,
    "distance": 35277,
    "duration": 5286,
    "times": {
      "driving": 5106,
      "serving": 180,
      "waiting": 0,
      "break": 0
    }
  },
  "tours": [
    {
      "vehicleId": "myVehicle_1",
      "typeId": "myVehicle",
      "stops": [
        {
          "location": {"lat": 52.52568, "lng": 13.45345},
          "time": {
            "arrival": "2020-07-04T09:19:01Z",
            "departure": "2020-07-04T09:19:01Z"
          },
          "load": [1],
          "activities": [
            {
              "jobId": "departure",
              "type": "departure"
            }
          ]
        },
        {
          "location": {"lat": 52.46642, "lng": 13.28124},
          "time": {
            "arrival": "2020-07-04T10:00:00Z",
            "departure": "2020-07-04T10:03:00Z"
          },
          "load": [0],
          "activities": [
            {
              "jobId": "myJob",
              "type": "delivery"
            }
          ]
        },
        {
          "location": {"lat": 52.52568, "lng": 13.45345},
          "time": {
            "arrival": "2020-07-04T10:47:07Z",
            "departure": "2020-07-04T10:47:07Z"
          },
          "load": [0],
          "activities": [
            {
              "jobId": "arrival",
              "type": "arrival"
            }
          ]
        }
      ],
      "statistic": {
        "cost": 54.459916,
        "distance": 35277,
        "duration": 5286,
        "times": {
          "driving": 5106,
          "serving": 180,
          "waiting": 0,
          "break": 0
        }
      }
    }
  ]
}

For a detailed explanation, see Solution.

If an error occurs during the problem solving, the error response is returned:

{
    "title": "Unprocessable entity",
    "status": 422,
    "code": "E613000",
    "cause": "E613420, 'Vehicle's arrival time is earlier than its departure time' 'Correct arrival time of 'vehicle' to be earlier than its departure'",
    "action": "",
    "correlationId": "REQ-497fdde4-048d-4db5-9d6e-8e44a952dede"
}