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Explore Realtime aspects of Open Data, with the Transport API as an example. Realtime means: an event in the system that is of immediate commercial or human interest (i.e has possible consequences).

RealTime PubSub Engine for Opendata based on HTML5 Websockets

  • Initiator: @der_graf
  • Opendata-PubSub is a Websocket handler written in Erlang
  • It lets clients subscribe to certain event classes via Javascript (websockets), and pushes updates if these events occur
  • It polls the Transport API for realtime events (transforming pulls into pushes)

Extend and improve the Realtime aspects of the Transport API

  • Examples: delay, change of departing platform
  • By that provide a simpler interface for realtime info (extracting it out of the Prognosis object etc)
  • Write a service that lets you subscribe to those events (Opendata-PubSub)

The RealTime PubSub Engine and the Protocol Extension can be the infrastructure for automatic pushes of RealTime info to an unlimited number of clients.

Build a Command Line Interface for the Transport Data

  • Testing with Travis CI
  • Documentation for Stationboard
  • Added train/bus number
  • Caching
  • Fixed Timezone, JSON-Header
  • Nearby station search (In progress)
  • project/transport_api.1333198507.txt.gz
  • Last modified: 2012/03/31 00:00
  • (external edit)