Technical Specification
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OS NGD API – Features Technical Specification provides an overview of the endpoints available, as well as the parameters that can be used with each endpoint. The Technical Specification is intended to be used by customers who want to integrate with the API. The service offers the following endpoints:
The OS NGD API – Features supports a generic filter grammar called Common Query Language (CQL) for specifying enhanced filter criteria to return a subset of features. CQL is written using a familiar text-based syntax, making it more readable and better-suited for creating complex filters.
The following table documents the supported operators:
Comparison
EQUAL TO [ = ], LESS THAN [ < ], LESS THAN OR EQUAL TO [ <= ], GREATER THAN [ > ], GREATER THAN OR EQUAL TO [ >= ], ISNULL, LIKE, IN, BETWEEN
Logical
AND, OR, NOT [ <> ]
Array
AEQUALS, ACONTAINS, ACONTAINEDBY, AOVERLAPS
Spatial
INTERSECTS
Landing page
OS NGD API – Features landing page
Conformance
List the OS NGD API – Features conformance to the OGC API - Features specification.
Collections
Get a list of all the available OS NGD feature types.
Collection
Get information about a specific OS NGD feature type.
Schema
Get the schema for a specific OS NGD feature type.
Queryables
Get a list of queryable attributes for a specific OS NGD feature type.
Features
Get features in an OS NGD feature type.
Feature
Get a specific feature in an OS NGD feature type by its OSID.