how to config url prefix?

[caibirdme]

Our pushgateway endpoint is something like a.b.c.d:1234/foo/bar/metrics/job/<xxx>
So how to add the /foo/bar prefix ?

[LKaemmerling]

Hey @caibirdme,

this is quite simple :)

new PushGateway("a.b.c.d:1234/foo/bar")