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Item Search

Search STAC items with full-featured filtering.

Retrieve items matching filters. Intended as the standard, full-featured query API.

This method is optional to implement, but recommended.

If this endpoint is implemented on a server, it is required to add a link referring to this endpoint with rel set to search and method set to POST to the links array in GET /.

post/search

Request body

bboxnumber[]

Only features that have a geometry that intersects the bounding box are selected. The bounding box is provided as four or six numbers, depending on whether the coordinate reference system includes a vertical axis (elevation or depth):

  • Lower left corner, coordinate axis 1
  • Lower left corner, coordinate axis 2
  • Lower left corner, coordinate axis 3 (optional)
  • Upper right corner, coordinate axis 1
  • Upper right corner, coordinate axis 2
  • Upper right corner, coordinate axis 3 (optional)

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).

If a feature has multiple spatial geometry properties, it is the decision of the server whether only a single spatial geometry property is used to determine the extent or all relevant geometries.

Example: The bounding box of the New Zealand Exclusive Economic Zone in WGS 84 (from 160.6°E to 170°W and from 55.95°S to 25.89°S) would be represented in JSON as [160.6, -55.95, -170, -25.89] and in a query as bbox=160.6,-55.95,-170,-25.89.

datetimestring

Either a date-time or an interval, open or closed. Date and time expressions adhere to RFC 3339. Open intervals are expressed using double-dots.

Examples:

  • A date-time: "2018-02-12T23:20:50Z"
  • A closed interval: "2018-02-12T00:00:00Z/2018-03-18T12:31:12Z"
  • Open intervals: "2018-02-12T00:00:00Z/.." or "../2018-03-18T12:31:12Z"

Only features that have a temporal property that intersects the value of datetime are selected.

If a feature has multiple temporal properties, it is the decision of the server whether only a single temporal property is used to determine the extent or all relevant temporal properties.

collectionsstring[]

Array of Collection IDs to include in the search for items. Only Item objects in one of the provided collections will be searched.

idsstring[]

Array of Item ids to return.

limitinteger

The optional limit parameter limits the number of items that are presented in the response document.

If the limit parameter value is greater than advertised limit maximum, the server shall return the maximum possible number of items, rather than responding with an error.

Only items are counted that are on the first level of the collection in the response document. Nested objects contained within the explicitly requested items shall not be counted.

Minimum = 1. Maximum = 10000. Default = 10.

Example request

{
  "bbox": [
    -110,
    39.5,
    -105,
    40.5
  ],
  "datetime": "2018-02-12T00:00:00Z/2018-03-18T12:31:12Z",
  "limit": 10,
  "fields": {
    "include": [
      "id",
      "properties.eo:cloud_cover"
    ],
    "exclude": [
      "geometry",
      "properties.datetime"
    ]
  },
  "sortby": [
    {
      "field": "properties.eo:cloud_cover",
      "direction": "asc"
    },
    {
      "field": "id",
      "direction": "desc"
    }
  ]
}

Response

A feature collection.

Changes