---
title: "Fetch a single feature"
method: GET
path: "/collections/{collectionId}/items/{featureId}"
tags: ["Data"]
---

# Fetch a single feature

`GET /collections/{collectionId}/items/{featureId}`

Fetch the feature with id `featureId` in the feature collection with id `collectionId`.

Use content negotiation to request HTML or GeoJSON.

## Path parameters

- `collectionId` string, required
- `featureId` string, required

## Headers

- `If-Match` string
- `If-None-Match` string

## Response `200`

Fetch the feature with id `featureId` in the feature collection with id `collectionId`

- Item — A GeoJSON Feature augmented with foreign members that contain values relevant to a STAC entity
  - `id` string, required — Feature identifier (unique per collection)
  - `links` Link[], required
    - `href` string, url, required
    - `rel` string, required — Relationship between the current document and the linked document. NOTE: the following relations are reserved and automatically generated: `self`, `root`, `parent`, `items`, `collection`, `next`, `previous`
    - `title` string
    - `type` string — The media type of the link target
    - `method` 'GET' | 'POST' — Specifies the HTTP method that the link expects
    - `hreflang` string — The language of the link target
  - `assets` ItemAssets, required — List of Assets attached to this feature.
  - `bbox` number[], required — The bounding box is provided as four numbers: * Lower left corner, coordinate axis 1 * Lower left corner, coordinate axis 2 * Upper right corner, coordinate axis 1 * Upper right corner, coordinate axis 2 The coordinate reference system of the values is WGS84 longitude/latitude (http://www.opengis.net/def/crs/OGC/1.3/CRS84). For WGS84 longitude/latitude the values are in most cases the sequence of minimum longitude, minimum latitude, maximum longitude and maximum latitude. However, in cases where the box spans the antimeridian the first value (west-most box edge) is larger than the third value (east-most box edge). Example: The bounding box of Switzerland in WGS 84 (from 5.96°E to 10.49°E and from 45.82°N to 47.81°N) would be represented in JSON as `[5.96, 45.82, 10.49, 47.81]` and in a query as `bbox=5.96,45.82,10.49,47.81`."
  - `geometry` union, required
    - GeoJsonPoint
      - `type` 'Point', required
      - `coordinates` number[], required — For type "Point", the "coordinates" member is a single position. The coordinate reference system of the values is WGS84 longitude/latitude (http://www.opengis.net/def/crs/OGC/1.3/CRS84).
    - GeoJsonLineString
      - `type` 'LineString', required
      - `coordinates` array[], required — For type "LineString", the "coordinates" member is an array of two or more positions. The coordinate reference system of the values is WGS84 longitude/latitude (http://www.opengis.net/def/crs/OGC/1.3/CRS84).
        - number[]
    - GeoJsonPolygon
      - `type` 'Polygon', required
      - `coordinates` array[], required — For type "Polygon", the "coordinates" member MUST be an array of linear ring coordinate arrays. The coordinate reference system of the values is WGS84 longitude/latitude (http://www.opengis.net/def/crs/OGC/1.3/CRS84).
        - array[]
          - number[]
    - GeoJsonMultiPoint
      - `type` 'MultiPoint', required
      - `coordinates` array[], required — For type "MultiPoint", the "coordinates" member is an array of positions. The coordinate reference system of the values is WGS84 longitude/latitude (http://www.opengis.net/def/crs/OGC/1.3/CRS84).
        - number[]
    - GeoJsonMultiLineString
      - `type` 'MultiLineString', required
      - `coordinates` array[], required — For type "MultiLineString", the "coordinates" member is an array of LineString coordinate arrays. The coordinate reference system of the values is WGS84 longitude/latitude (http://www.opengis.net/def/crs/OGC/1.3/CRS84).
        - array[]
          - number[]
    - GeoJsonMultiPolygon
      - `type` 'MultiPolygon', required
      - `coordinates` array[], required — For type "MultiPolygon", the "coordinates" member is an array of Polygon coordinate arrays. The coordinate reference system of the values is WGS84 longitude/latitude (http://www.opengis.net/def/crs/OGC/1.3/CRS84).
        - array[]
          - array[]
            - number[]
  - `properties` ItemProperties, required — Provides the core metadata fields plus extensions The item's data timing information can be specified either with * One datetime value in the field `datetime` * A datetime range with a `start_datetime` and an `end_datetime` One of the two is required. **Note on STAC extensions:** When a STAC extension is listed in the `stac_extensions` field, certain properties may be required. For example, when using the [Forecast extension](`https://github.com/stac-extensions/forecast`), the `forecast:reference_datetime` property is required.
    - `created` string, date-time, required — RFC 3339 compliant datetime string, time when the object was created
    - `datetime` string, date-time — RFC 3339 compliant datetime string
    - `start_datetime` string, date-time — RFC 3339 compliant datetime string
    - `end_datetime` string, date-time — RFC 3339 compliant datetime string
    - `expires` string, date-time — RFC 3339 compliant datetime string
    - `updated` string, date-time, required — RFC 3339 compliant datetime string, time when the object was updated
    - `title` string — Human readable title of the Feature
    - `forecast:reference_datetime` string, date-time — RFC 3339 compliant datetime string
    - `forecast:horizon` string — ISO 8601 compliant duration
    - `forecast:duration` string — ISO 8601 compliant duration
    - `forecast:variable` string, nullable — Name of the model variable that corresponds to the data. The variables should correspond to the [CF Standard Names](https://cfconventions.org/Data/cf-standard-names/current/build/cf-standard-name-table.html), e.g. `air_temperature` for the air temperature.
    - `forecast:perturbed` boolean, nullable — Denotes whether the data corresponds to the control run (`false`) or perturbed runs (`true`). The property needs to be specified in both cases as no default value is specified and as such the meaning is "unknown" in case it's missing.
  - `stac_version` string, required
  - `stac_extensions` string[] — List of STAC extensions used by this feature. Properties that are not part of the default feature properties (`datetime`, `start_datetime`, `end_datetime`, `title`, `created`, `updated`) must be covered by one of the extensions listed here, otherwise the request is rejected. Additionally, when an extension is listed here, certain properties required by that extension must be present in the `properties` field. For example, when using the Forecast extension, the `forecast:reference_datetime` property is required.
  - `type` 'Feature', required — The GeoJSON type

## Other responses

- `304` — The cached resource was not modified since last request.
- `404` — The specified resource/URI was not found
- `412` — Some condition specified by the request could not be met in the server
- `500` — The request was syntactically and semantically valid, but an error occurred while trying to act upon it

---

[API](https://skmtc.net/geoadmin/apis/the-spatiotemporal-asset-catalog-api-for-data-geo-admin-ch.md) · [All operations](https://skmtc.net/geoadmin/apis/the-spatiotemporal-asset-catalog-api-for-data-geo-admin-ch/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/geoadmin/the-spatiotemporal-asset-catalog-api-for-data-geo-admin-ch/versions/015864bb4d77/schema)