StaticclassProtected_getProtected_getProtectedOptional bulk attribute retrieval for multiple keys. Can be implemented for optimal loading of data. Provides a webmercator extent to limit the lookup if needed. You MUST return a same length array as keys, with undefined for missing attributes.
array of key and feature pairs to retrieve attributes for
Optional_extent: Extentoptional extent in webmercator to limit attribute lookup on certain providers.
Augments a feature with attributes from the provider
Augments multiple features with attributes from the provider
Optionalextent: Extentoptional extent in webmercator to limit attribute lookup on certain providers.
Optional_defaultOptions: UrlIdAttributeProviderOptionsStaticget
Provides attributes for features by fetching data from a URL based on feature IDs. The URL template should contain a {id} placeholder that will be replaced with the encoded feature ID. urlTemplate: 'https://api.example.com/features/{id}' For a feature with ID "123", this would request: https://api.example.com/features/123
The backend should return a JSON object with attribute key-value pairs. { "name": "Feature Name", "description": "Feature description", "value": 42 } If the request fails or returns invalid data, the provider returns undefined.