Technical Specification
API Reference
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. Click into each endpoint to learn more.
OS NGD API – Features landing page
Ordnance Survey National Geographic Database API – Features landing page.
OS NGD API – Features conformance page
Ordnance Survey National Geographic Database API – Features conformance page.
Get list of all OS NGD feature collections
Get a list of all the available OS NGD feature collections
All Ordnance Survey National Geographic Database feature collections.
Get a single OS NGD feature collection
Get information about an OS NGD feature collection
A known collection ID.
"bld-fts-building-1"
A single Ordnance Survey National Geographic Database feature collection.
Get schema for a single OS NGD feature collection
A known collection ID.
"bld-fts-building-1"
Schema for an Ordnance Survey National Geographic Database feature collection.
Get a list of queryable attributes for this feature collection
A known collection ID.
"bld-fts-building-1"
A list of queryable attributes and their types for this feature collection.
Retrieve features in the feature collection
A known collection ID.
"bld-fts-building-1"
A list of features in a feature collection.
Retrieve a feature from the feature collection
A known collection ID.
"bld-fts-building-1"
A feature ID which is the identifier(id) for the feature.
"11111111-1111-1111-1111-111111111111"
A single feature in the feature collection.
Use of CQL Operators
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:
Operator Type | Supported Operators |
---|---|
Comparison |
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Logical |
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Array |
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Spatial |
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