Aachener Verkehrsverbund (AVV) is the local transport provider of Aachen. This profile adds AVV support to hafas-client.
import {createClient} from 'hafas-client'
import {profile as avvProfile} from 'hafas-client/p/avv/index.js'
const userAgent = 'link-to-your-project-or-email' // adapt this to your project!
// create a client with AVV profile
const client = createClient(avvProfile, userAgent)