Work with Features

Read Features in a Space by ID

The following request queries a single feature using the ID of the feature.

Request

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GET /spaces/{spaceId}/features/{featureId}

Response

{
  "type": "Feature",
  "id": "{featureId}",
  "geometry":
  {
    "type": "Point",
    "coordinates":
    [
      -2.960847,
      53.430828
    ]
  },
  "properties":
  {
    "name": "Anfield",
    "@ns:com:here:xyz":
        {
          "tags":
             [
               "football",
               "stadium"
             ]
        },
        "amenity": "Football Stadium",
        "capacity": 54074,
        "popupContent": "Home of Liverpool Football Club"
  }
}

Read Features of a Space

For querying multiple features in a space use the following request:

Request

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GET /spaces/[spaceId}/features?id={featureId1},{featureId2},{featureId3}

Response

{
    "type": "FeatureCollection",
    "features":
    [
      {
        "type": "Feature",
        "geometry":
        {
          "type": "Point",
          "coordinates":
          [
            -2.960847,
            53.430828
          ]
        },
        "properties":
        {
           "@ns:com:here:xyz":
           {
             "tags":
             [
               "football",
               "stadium"
             ]
            },
            "name": "Anfield",
            "amenity": "Football Stadium",
            "capacity": 54074,
            "popupContent": "Home of Liverpool Football Club"
          }
      }
    ]
}

Get a Feature Count and other statistics

Here is an example of getting the number of features in a space, the size and a list of tags on the space.

Request

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GET /spaces/{spaceId}/statistics

Response

{
  "type": "StatisticsResponse",
  "count": {
    "value": 29208,
    "estimated": true
  },
  "byteSize": {
    "value": 108364,
    "estimated": true
  },
  "bbox": {
    "value": [
      -10,
      -10,
      10,
      10
    ],
    "estimated": true
  },
  "geometryTypes": {
    "value": [
      "Point"
    ],
    "estimated": true
  },
  "properties": {
    "value": [
      {
        "key": "Route",
        "count": 29208,
        "searchable": true
      },
      {
        "key": "Route Type",
        "count": 29208,
        "searchable": true
      }
    ],
    "estimated": true,
    "searchable": "PARTIAL"
  },
  "tags": {
    "value": [
      {
        "key": "PuneBusStop",
        "count": 29208
      }
    ]
  }
}

Create/Replace Features

To create features in a space or to replace existing ones you can use the following request.

Warning

Existing features will be completely erased by using this PUT request.

To keep already existing features, use this request.

Request

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PUT /spaces/{spaceId}/features

with the following body

{
    "type": "FeatureCollection",
    "features":
    [
      {
        "type": "Feature",
        "geometry":
        {
          "type": "Point",
          "coordinates":
          [
            -2.960847,
            53.430828
          ]
        },
        "properties":
        {
          "@ns:com:here:xyz":
          {
            "tags":
            [
              "football",
              "stadium"
            ]
          },
          "name": "Anfield",
          "amenity": "Football Stadium",
          "capacity": 54074,
          "popupContent": "Home of Liverpool Football Club"
        }
      }
  ]
}

Response

{
    "type": "FeatureCollection",
    "features":
    [
      {
        "type": "Feature",
        "id": "BfiimUxHjj",
        "geometry":
        {
          "type": "Point",
          "coordinates":
          [
            -2.960847,
            53.430828
          ]
        },
        "properties":
        {
          "name": "Anfield",
          "@ns:com:here:xyz":
          {
             "createdAt": 1517504700726,
             "updatedAt": 1517504700726,
             "space": "x-demospace",
             "tags":
             [
               "football",
               "stadium"
             ]
           },
           "amenity": "Football Stadium",
           "capacity": 54074,
           "popupContent": "Home of Liverpool Football Club"
         }
      }
   ]
}

Modify Features

This is an example for modifying existing features using a POST request.

Request

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POST /spaces/{spaceId}/features

with the following body

{
    "type": "FeatureCollection",
    "features":
    [
      {
        "type": "Feature",
        "geometry":
          {
            "type": "Point",
            "coordinates":
            [
              -2.960847,
              53.430828
            ]
          },
          "properties":
          {
            "@ns:com:here:xyz":
            {
              "tags":
              [
                "football",
                "stadium"
              ]
            },
            "name": "Anfield",
            "amenity": "Football Stadium",
            "capacity": 54074,
            "popupContent": "Home of Liverpool Football Club"
          }
        }
    ]
}

Response

{
    "type": "FeatureCollection",
    "features":
    [
      {
        "type": "Feature",
        "id": "BfiimUxHjj",
        "geometry":
        {
          "type": "Point",
          "coordinates":
          [
            -2.960847,
            53.430828
          ]
        },
        "properties":
        {
          "name": "Anfield",
          "@ns:com:here:xyz":
          {
            "createdAt": 1517504700726,
            "updatedAt": 1517504700726,
            "space": "x-demospace",
            "tags":
            [
              "football",
              "stadium"
            ]
          },
          "amenity": "Football Stadium",
          "capacity": 54074,
          "popupContent": "Home of Liverpool Football Club"
        }
      }
  ]
}

Partially Update Features in Space

This request contains only the feature properties you want to add, update or delete.

  • If the property does not yet exist in the latest version of the feature it is added.
  • If the property has another value of the latest version of the feature it is updated to the value in the request
  • If the property value is null in the request, the property is deleted from the feature object

Request

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PATCH /spaces/{spaceId}/features?id={featureId1},{featureId2},{featureId3}

A PATCH request needs something like the following body

{
    "type": "Feature",
    "id": "string",
    "geometry":
    {
      "type": "string"
    },
    "properties":
    {
       "@ns:com:here:xyz":
       {}
    },
    "bbox":
    [
      -100.1,
      -1.1,
      100.1,
      1.1
    ]
}

Response

{
  "type": "FeatureCollection",
  "features":
  [
    {
      "type": "Feature",
      "id": "BfiimUxHjj",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -2.960847,
          53.430828
        ]
      },
      "properties": {
        "name": "Anfield",
        "@ns:com:here:xyz": {
          "createdAt": 1517504700726,
          "updatedAt": 1517504700726,
          "space": "x-demospace",
          "tags": [
            "football",
            "stadium"
          ]
        },
        "amenity": "Football Stadium",
        "capacity": 54074,
        "popupContent": "Home of Liverpool Football Club"
      }
    }
  ]
}

Validation Errors

If you are using the validation feature, you sometimes will get an error message when uploading or modifying features, such as the following:

{
  "type": "FeatureCollection",
  ...
  "features": [],
  "failed": [
    {
      "id": null,
      "position": 0,
      "message": "Feature on position 0 has JSON schema validations errors/warnings.\n[[1,151][/properties] The object must have a property whose name is \"city\"., [1,151][/properties] The object must have a property whose name is \"employees\"., [1,151][/properties] The object must have a property whose name is \"name\"., [1,151][/properties] The object must have a property whose name is \"country\".]"
    }
  ]
}

The failed property contains all the features that schema validation rejected.
The id is the id you sent. If you did not send one, the id will be null as in the example.
Position is the position (zero-based) in the uploaded feature collection.
The message contains the schema validation errors with a detailed description of what does not confirm to your schema.

Search a Space for Features

There are two ways of searching a space. /search is one, the other is /iterate. This does not order the results and it does not enable you to continue the search.

Request

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GET /spaces/{spaceId}/search

Response

{
    "type": "FeatureCollection",
    "features":
    [
      {
        "type": "Feature",
        "id": "BfiimUxHjj",
        "geometry":
        {
          "type": "Point",
          "coordinates":
          [
            -2.960847,
            53.430828
          ]
        },
        "properties":
        {
          "name": "Anfield",
          "@ns:com:here:xyz":
          {
            "createdAt": 1517504700726,
            "updatedAt": 1517504700726,
            "space": "x-demospace",
            "tags":
            [
              "football",
              "stadium"
            ]
          },
          "amenity": "Football Stadium",
          "capacity": 54074,
          "popupContent": "Home of Liverpool Football Club"
        }
      }
    ]
}

Iterate Features from Specific Spaces

This is the second way to search a space (the other is /search). Iterate allows you to iterate over all the matching features with the handle handle as a query parameter

Request

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GET /spaces/{spaceId}/iterate

Response

{
    "type": "FeatureCollection",
    "features":
    [
      {
        "type": "Feature",
        "id": "BfiimUxHjj",
        "geometry":
        {
          "type": "Point",
          "coordinates":
          [
            -2.960847,
            53.430828
          ]
        },
        "properties":
        {
          "name": "Anfield",
          "@ns:com:here:xyz":
          {
            "createdAt": 1517504700726,
            "updatedAt": 1517504700726,
            "space": "x-demospace",
            "tags":
            [
              "football",
              "stadium"
            ]
           },
           "amenity": "Football Stadium",
           "capacity": 54074,
           "popupContent": "Home of Liverpool Football Club"
          }
      }
  ]
}

Delete Multiple Features

You can remove specific features by sending this request with their feature IDs

Request

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DELETE /spaces/{spaceId}/features?id={id1},{id2}

Response

HTTP/1.1 204 No Content

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