db-rest stations search: fall back to HAFAS

[HMABUHABIB]

I'm not able to get the train station id for the local train station
it's working https://2.db.transport.rest/stations?query=bielefeld
Not working https://2.db.transport.rest/stations?query=bielefeld Lohmannshof
it was working last week can you please check it

[derhuerst]

db-stations, the underlying data source for the stations search, doesn't contain it anymore:

npm install db-stations
cat node_modules/db-stations/full.ndjson | jq .name | grep -i bielefeld

Bielefeld Ost
Bielefeld Hbf
Brake (b Bielefeld)
Steinhagen (Westf) Bielefelder Straße
Bielefeld-Senne

db-stations only contains DB-operated stations, while their DB HAFAS endpoint knows many other stations operated by other providers. In the mentioned case the API should fall back to the HAFAS endpoint to find it.

[derhuerst]

cc @juliuste, In case he's taking of this anyways…