I use HERE Maps Routing REST API 7.2. When I try to execute "getlinkinfo", I get the message "linkid prefix not valid".
Here is example of request (use your token and app id):
You should either add a "+" or a "-" for LinkIds and linkAttributes does not support speed category, Also getLinkInfo is a Beta end point, for Speed Limits you can try using the Platform Data Extension API, route.api.here.com/routing/7.2/…