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‎api-spec/STAC-fragment.yaml

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@@ -125,17 +125,18 @@ components:
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name: time
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in: query
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description: >-
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A time range search that accepts a JSON search object.
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Either a date-time or a period string that adheres to RFC3339. Examples:
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* A date-time: "2018-02-12T23:20:50Z"
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* A period: "2018-02-12T00:00:00Z/2018-03-18T12:31:12Z" or "2018-02-12T00:00:00Z/P1M6DT12H31M12S"
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Only features that have a temporal property that intersects the value of
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`time` are selected.
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If a feature has multiple temporal properties, it is the decision of the
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server whether only a single temporal property is used to determine the
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extent or all relevant temporal properties.
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server whether only a single temporal property is used to determine
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the extent or all relevant temporal properties.
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required: false
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schema:
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$ref: '#/components/schemas/timeRange'
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type: string
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style: form
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explode: false
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schemas:
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searchBody:
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- 39
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- -105
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time:
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gt: "2018-03-15T00:00:00.000Z"
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lt: "2018-06-01T00:00:00.000Z"
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time: "2018-03-15T00:00:00.000Z"
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bboxFilter:
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type: object
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description: Only return items that intersect the provided bounding box.
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type: object
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properties:
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time:
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$ref: '#/components/schemas/timeRange'
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$ref: '#/components/parameters/time'
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intersectsFilter:
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type: object
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description: Only returns items that intersect with the provided polygon.
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description: >-
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A single date-time string that adheres to RFC3339, for example
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1985-04-12T23:20:50.52Z
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timeRange:
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type: object
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properties:
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gt:
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$ref: '#/components/schemas/time'
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lt:
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$ref: '#/components/schemas/time'
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gte:
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$ref: '#/components/schemas/time'
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lte:
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$ref: '#/components/schemas/time'
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itemCollection:
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type: object
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required:

‎api-spec/STAC-standalone.yaml

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@@ -150,27 +150,19 @@ components:
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time:
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name: time
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in: query
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description: >-
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A time range search that accepts a JSON search object.
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description: |
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Either a date-time or a period string that adheres to RFC3339. Examples:
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* A date-time: "2018-02-12T23:20:50Z"
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* A period: "2018-02-12T00:00:00Z/2018-03-18T12:31:12Z" or "2018-02-12T00:00:00Z/P1M6DT12H31M12S"
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Only features that have a temporal property that intersects the value of
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`time` are selected.
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If a feature has multiple temporal properties, it is the decision of the
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server whether only a single temporal property is used to determine the
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extent or all relevant temporal properties.
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server whether only a single temporal property is used to determine
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the extent or all relevant temporal properties.
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required: false
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schema:
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type: object
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properties:
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gt:
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$ref: '#/components/schemas/time'
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lt:
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$ref: '#/components/schemas/time'
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gte:
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$ref: '#/components/schemas/time'
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lte:
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$ref: '#/components/schemas/time'
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type: string
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style: form
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explode: false
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collectionId:
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name: collectionId

‎api-spec/WFS3core+STAC.yaml

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@@ -308,26 +308,18 @@ components:
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name: time
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in: query
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description: >-
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A time range search that accepts a JSON search object.
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Either a date-time or a period string that adheres to RFC3339. Examples:
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* A date-time: "2018-02-12T23:20:50Z"
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* A period: "2018-02-12T00:00:00Z/2018-03-18T12:31:12Z" or "2018-02-12T00:00:00Z/P1M6DT12H31M12S"
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Only features that have a temporal property that intersects the value of
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`time` are selected.
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If a feature has multiple temporal properties, it is the decision of the
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server whether only a single temporal property is used to determine the
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extent or all relevant temporal properties.
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server whether only a single temporal property is used to determine
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the extent or all relevant temporal properties.
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required: false
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schema:
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type: object
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properties:
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gt:
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$ref: '#/components/schemas/time'
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lt:
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$ref: '#/components/schemas/time'
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gte:
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$ref: '#/components/schemas/time'
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lte:
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$ref: '#/components/schemas/time'
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type: string
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style: form
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explode: false
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collectionId:
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name: collectionId

‎api-spec/filters.md

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@@ -6,7 +6,7 @@ and are required to be supported.
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The filters are designed to be simple as possible for a client to construct. To match the default JSON responses the
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encoding of filters is done by default in JSON. This allows clients to support filtering without additional tools. The
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search enpoint will accept application/json format queries, and GET on the collection will support URL encoded JSON. POST
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search endpoint will accept application/json format queries, and GET on the collection will support URL encoded JSON. POST
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search the is recommended way to filter results to avoid the URL encoding issues that can happen with GET.
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Searching using POST will accept a JSON object where the top level keys are specifying which type of filter
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objects may provide a bbox property in addition to geometry, but it should not be used for the bbox filter since
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it is an optional field in GeoJSON.
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example
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###### examples: ######
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POST:
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```
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{
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"bbox": [-180,-90,180,90]
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}
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```
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The temporal query will be based on [RFC 3339](https://tools.ietf.org/html/rfc3339) and should support time ranges as well as equality. To support range
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queries, we are using a simple JSON based language. Ranges will be specified as an object with keys indicating the comparison to use.
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GET:
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```
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?bbox=[-180,-90,180,90]
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```
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The temporal query will be based on [RFC 3339](https://tools.ietf.org/html/rfc3339) and should support time ranges as well as equality. It will compare against the datetime property of the STAC Item.
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###### To find items with an exact date ######
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POST:
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```
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{
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"time": "2007-03-01T13:00:00Z"
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}
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```
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Equality is specified as `{"time": "2018-03-20T16:11:44.353Z"}`
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Before is `{"time":{"lt":"2018-03-20T16:11:44.353Z"}}`
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After is `{"time":{"gt":"2018-03-20T16:11:44.353Z"}}`
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Before with Equality is `{"time":{"lte":"2018-03-20T16:11:44.353Z"}}`
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After with Equality is `{"time":{"gte":"2018-03-20T16:11:44.353Z"}}`
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GET:
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```
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?time=2007-03-01T13:00:00Z
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```
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These queries can be combined to specify a search range:
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###### To specify a time range, use the interval syntax: ######
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POST:
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```
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{
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"time": {
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"gt":"2018-03-15T00:00:00.000Z",
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"lt":"2018-06-01T00:00:00.000Z",
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}
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}
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"time": "2007-03-01T13:00:00Z/2008-05-11T15:30:00Z"
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}
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```
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GET:
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```
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?time=2007-03-01T13:00:00Z/2008-05-11T15:30:00Z
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```
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###### Specify intervals using durations: ######
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`2007-03-01T13:00:00Z/P1Y2M10DT2H30M`
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If time is a period with out a start or end date, the end date is assigned to now:
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`P1Y2M10DT2H30M` is the same as `"P1Y2M10DT2H30M/" + new Date().toISOString()`
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Filter Extensions
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-----------------
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CQL support for generic queries:
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`{"CQL": "CQL Select String"}`
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Time intervals:
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`{"time": "P1Y"}` Assume Duration/now if no time specified?
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`{"time": "2018/P1M"}` Any time in january of 2018
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Adding filters to search
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------------------------

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