post
https://smap.hereapi.com/v8/maps/attributes/path
The path endpoint can be used to enrich a given continuous route path with HERE Map content attributes. For POST requests, send the large path parameters (segmentRefs, segments, links or flexiblePolyline) in an application/x-www-form-urlencoded request body instead of the query string. Authentication apiKey must - and basic configuration parameters can remain in the query string.