auser

handles VDV AUS subscription and offers the received updates for data consumers

Start service

Specify client attributes and which VDV AUS server to subscribe to.

./auser --client_name client --client_ip X.X.X.X --client_port 80 --server_name server --server_addr http://Y.Y.Y.Y:80

Fetch updates

As a downstream data consumer, send a GET Request to the auser instance

X.X.X.X:80/auser/fetch?since=23

to fetch all updates that arrived since the update with the auser_id = 23. Use since=0 for the initial fetch.

Response:

<AUSNachricht auser_id="42">
<IstFahrt>...</IstFahrt>
<IstFahrt>...</IstFahrt>
<IstFahrt>...</IstFahrt>
...
<IstFahrt>...</IstFahrt>
</AUSNachricht>

The response contains an attribute auser_id in the AUSNachricht XML node. This integer encodes the state of the data consumer after processing the update. The auser_id should be used as the value for since in the next fetch.

Depending on the fetch frequency, updates can get very large. The body_limit parameter can be used to define a maximum size in Bytes for the response body. The default value is 8 MB.