create a command line lib for any HAFAS client

[sixtyfive]

What an awesomething. How about adding Deutsche Bahn?

[derhuerst]

What an awesomething.

Thanks!

How about adding Deutsche Bahn?

Deutsche Bahn data includes urban public transport, but in a really inaccurate way. Also, those two datasets are hard to bring together, since they have different IDs, names, etc.

Getting something like vbb-cli for DB would work like this:

1. use db-hafas to query the data
2. adapt vbb-rest to make a REST API
3. adapt vbb-client to fetch from the REST API
4. adapt vbb-cli for get a command line client

2 and 3 are optional, as db-cli could use db-hafas directly (having a REST API just makes the client more lightweight).

[derhuerst]

Recently, VBB (urban transport for Berlin) switched to international IDs for the static data and they plan to switch for their API, so hopefully, we'll be able to bring these two together soon!

I'm working on making all my modules compatible with the new IDs, but it takes time.

[sixtyfive]

That sounds like awesome news! Sorry that I couldn't do more than open the FR; live just doesn't permit me any side projects atm. May it grant you a little time here and there! 😄

[derhuerst]

I adapted all modules and fixed all the bugs i could find. still, i don't have too much time, but looking more into Deutsche Bahn and other contries with HAFAS would be interesting. @juliuste might also be interested

[hammer065]

I know several people who would be interested if more cities/regions will be supported.
Also I never noticed any discrepancy between the reality and what the DB-API tells me regarding to urban public transport

[derhuerst]

@hammer065 Writing a separate DB command line client would be entirely possible. But merging both data sources into one client seems infeasible right now.

[hammer065]

@derhuerst A separate db-client would be entirely fine though.
You could use vbb-cli to to develop a standard public transport cli, where you can choose which system you wanna use (vbb, DB, etc.).
This could make the system even more modular.

[derhuerst]

You could use vbb-cli to to develop a standard public transport cli, where you can choose which system you wanna use (vbb, DB, etc.).

Not sure this is necessary. Also not sure if people want to install all the dependencies for all public transport agencies only to be able to choose at runtime.

[derhuerst]

see also #9.

[derhuerst]

Done. hafas-cli contains the general logic to expose a hafas-client@3-compatible API as a command line interface.