[GraphHopper] Indicate heading to GraphHopper

[Vivek Nallur]

Hi everyone,

We are trying to run a traffic simulation with GraphHopper providing the
'backend routing'. Essentially, thousands of taxis (agents) make a query
for their route and then depending on the directions returned by GH,
start to move inside a map. Now, from a taxi's perspective, it's quite
important to get a route that's aware of the direction that the taxi is
currently facing (due to possible one-way/two-streets). How does one
indicate to GH, that the taxi is facing in a particular direction?

Is there something we're missing in the API?

regs
Vivek