[GraphHopper] Adding custom weight to edge

[Peter]

> But that means I need to handle the start/end edge separately?

yes, or you waive the GPS exact routing and just route from junction to
junction (with its own drawbacks)

> Right now I still matching on the phone. But for a bigger amount of GPS points it would make sense to do that on the server.
> If I do the matching on the server and as long as I don't reimport from a different osm file the graph should work?

yes, you can reimport the same OSM file, for the same GH version and
configuration then the edge and node IDs should and will be the same.

Peter