how to set up arangodb with feather generate custom service (generator-feathers)

I've set up a server with feathers-cli

feathers geneate app

Since there's no default service for Arangodb available I did:

feathers generate service
> A custom service

I'm searching for examples/docs now, on how to link custom service calls like create, find, get etc. to arangodb or any db for that matter.