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Queryable properties for CQL2

GET
/v1/collections/{collectionId}/queryables
curl --request GET \
--url https://api.satellitedata.net/v1/collections/sentinel-2-l2a/queryables

Returns the JSON Schema of the item properties a CQL2 filter may use on this collection, as the STAC API Filter extension requires. A filter on any other property fails with 400, because pgSTAC would otherwise scan JSON it has no index for.

collectionId
required
string
/^[A-Za-z0-9_.-]+$/

Collection id or alias without a slash, for example sentinel-2-l2a or S2L2A.

Example

sentinel-2-l2a

Queryables.

Media typeapplication/schema+json

Queryables for CQL2 filters (STAC API Filter extension).

object
$schema

JSON Schema dialect.

string
$id

Id of this queryables document.

string format: uri
type
required

Always object.

string
Allowed value: object
title

Title.

string
properties
required

One JSON Schema per queryable property.

object
key
additional properties
object
key
additional properties
any
additionalProperties

False: filters on other properties fail with 400.

boolean

Example

{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://api.satellitedata.net/v1/collections/sentinel-2-l2a/queryables",
"type": "object",
"title": "Sentinel-2 L2A queryables",
"properties": {
"datetime": {
"type": "string",
"format": "date-time"
},
"platform": {
"type": "string",
"enum": [
"sentinel-2a",
"sentinel-2b",
"sentinel-2c"
]
},
"eo:cloud_cover": {
"type": "number",
"minimum": 0,
"maximum": 100
},
"s2:mgrs_tile": {
"type": "string"
},
"s2:processing_baseline": {
"type": "string"
},
"sdn:mask_source": {
"type": "string",
"enum": [
"scl"
]
}
},
"additionalProperties": false
}
X-Request-Id
string

Request id for support and logs.

Example
01JQ7Z3M8R5V2W6X9Y0A1B2C3D
ETag
string

Entity tag; includes the render version.

Example
"r3-9f2c1a"
Cache-Control
string

Caching policy for CloudFront and browsers.

Example
public, max-age=3600, s-maxage=2592000, stale-if-error=604800

No resource has this id.

Media typeapplication/problem+json

RFC 9457 problem details. Every 4xx and 5xx response uses this shape with media type application/problem+json. The type URL opens a documentation page that explains the cause and the fix.

object
type
required

URL of the documentation page for this problem type, stable for the life of /v1.

string format: uri
title
required

Short summary of the problem type. It does not change between occurrences.

string
status
required

HTTP status code, repeated for clients that lose the status line.

integer
>= 400 <= 599
detail
required

Explanation specific to this occurrence, written for a developer.

string
instance

Path of the request that failed.

string
code

Machine-readable problem code; equals the last path segment of type.

string
/^[a-z0-9-]+$/
requestId

Request id, also sent in X-Request-Id. Quote it in support requests.

string
errors

Field-level validation failures, present on 400 and 422.

Array<object>

One field-level failure.

object
pointer
required

JSON Pointer (RFC 6901) into the request body, or the query parameter name.

string
detail
required

What is wrong with that member.

string
retryAfter

Seconds until the request can succeed; equals the Retry-After header.

integer
limits

The limit that was hit and the value requested, for example maxWidth and requestedWidth.

object
key
additional properties
number
unitsEstimated

Units the request would have cost, computed before execution.

number
error

OAuth 2.0 error code (RFC 6749 section 5.2). Present only on /oauth/token responses.

string
Allowed values: invalid_request invalid_client invalid_grant unauthorized_client unsupported_grant_type invalid_scope
error_description

OAuth 2.0 error description. Present only on /oauth/token responses.

string
message

Copy of detail for openEO clients, which read message. Present only on /v1/openeo routes.

string
key
additional properties
any

Example

{
"type": "https://docs.satellitedata.net/problems/not-found",
"title": "Not found",
"status": 404,
"detail": "No item S2C_T15TVK_20260714T170911_L2X in collection sentinel-2-l2a.",
"instance": "/v1/collections/sentinel-2-l2a/items/S2C_T15TVK_20260714T170911_L2X",
"code": "not-found",
"requestId": "01JQ7Z3M8R5V2W6X9Y0A1B2C3D"
}
X-Request-Id
string

Request id for support and logs.

Example
01JQ7Z3M8R5V2W6X9Y0A1B2C3D

A per-minute, concurrency, monthly or per-IP limit was hit. Retry-After says when to retry.

Media typeapplication/problem+json

RFC 9457 problem details. Every 4xx and 5xx response uses this shape with media type application/problem+json. The type URL opens a documentation page that explains the cause and the fix.

object
type
required

URL of the documentation page for this problem type, stable for the life of /v1.

string format: uri
title
required

Short summary of the problem type. It does not change between occurrences.

string
status
required

HTTP status code, repeated for clients that lose the status line.

integer
>= 400 <= 599
detail
required

Explanation specific to this occurrence, written for a developer.

string
instance

Path of the request that failed.

string
code

Machine-readable problem code; equals the last path segment of type.

string
/^[a-z0-9-]+$/
requestId

Request id, also sent in X-Request-Id. Quote it in support requests.

string
errors

Field-level validation failures, present on 400 and 422.

Array<object>

One field-level failure.

object
pointer
required

JSON Pointer (RFC 6901) into the request body, or the query parameter name.

string
detail
required

What is wrong with that member.

string
retryAfter

Seconds until the request can succeed; equals the Retry-After header.

integer
limits

The limit that was hit and the value requested, for example maxWidth and requestedWidth.

object
key
additional properties
number
unitsEstimated

Units the request would have cost, computed before execution.

number
error

OAuth 2.0 error code (RFC 6749 section 5.2). Present only on /oauth/token responses.

string
Allowed values: invalid_request invalid_client invalid_grant unauthorized_client unsupported_grant_type invalid_scope
error_description

OAuth 2.0 error description. Present only on /oauth/token responses.

string
message

Copy of detail for openEO clients, which read message. Present only on /v1/openeo routes.

string
key
additional properties
any

Example

{
"type": "https://docs.satellitedata.net/problems/rate-limited",
"title": "Rate limit exceeded",
"status": 429,
"detail": "This key spent 300 of its 300 units in the current minute.",
"instance": "/v1/process",
"code": "rate-limited",
"requestId": "01JQ7Z3M8R5V2W6X9Y0A1B2C3D",
"retryAfter": 17,
"limits": {
"unitsPerMinute": 300,
"unitsSpentThisMinute": 300
}
}
X-Request-Id
string

Request id for support and logs.

Example
01JQ7Z3M8R5V2W6X9Y0A1B2C3D
Retry-After
integer

Seconds to wait before retrying.

Example
17
RateLimit
string

Remaining units and seconds to reset in the current window (IETF RateLimit header draft).

Example
"units";r=287;t=41
RateLimit-Policy
string

Quota policy of the caller (IETF RateLimit header draft).

Example
"units";q=300;w=60

An unexpected server error. No units are charged.

Media typeapplication/problem+json

RFC 9457 problem details. Every 4xx and 5xx response uses this shape with media type application/problem+json. The type URL opens a documentation page that explains the cause and the fix.

object
type
required

URL of the documentation page for this problem type, stable for the life of /v1.

string format: uri
title
required

Short summary of the problem type. It does not change between occurrences.

string
status
required

HTTP status code, repeated for clients that lose the status line.

integer
>= 400 <= 599
detail
required

Explanation specific to this occurrence, written for a developer.

string
instance

Path of the request that failed.

string
code

Machine-readable problem code; equals the last path segment of type.

string
/^[a-z0-9-]+$/
requestId

Request id, also sent in X-Request-Id. Quote it in support requests.

string
errors

Field-level validation failures, present on 400 and 422.

Array<object>

One field-level failure.

object
pointer
required

JSON Pointer (RFC 6901) into the request body, or the query parameter name.

string
detail
required

What is wrong with that member.

string
retryAfter

Seconds until the request can succeed; equals the Retry-After header.

integer
limits

The limit that was hit and the value requested, for example maxWidth and requestedWidth.

object
key
additional properties
number
unitsEstimated

Units the request would have cost, computed before execution.

number
error

OAuth 2.0 error code (RFC 6749 section 5.2). Present only on /oauth/token responses.

string
Allowed values: invalid_request invalid_client invalid_grant unauthorized_client unsupported_grant_type invalid_scope
error_description

OAuth 2.0 error description. Present only on /oauth/token responses.

string
message

Copy of detail for openEO clients, which read message. Present only on /v1/openeo routes.

string
key
additional properties
any

Example

{
"type": "https://docs.satellitedata.net/problems/internal",
"title": "Internal error",
"status": 500,
"detail": "The request failed on our side and was logged. No units were charged.",
"instance": "/v1/process",
"code": "internal",
"requestId": "01JQ7Z3M8R5V2W6X9Y0A1B2C3D"
}
X-Request-Id
string

Request id for support and logs.

Example
01JQ7Z3M8R5V2W6X9Y0A1B2C3D