How to add optional parameters in a PDU

[skytreader]

Are optional parameters currently supported? I've been looking at the PDU class and it seems that the optionalParams field is initialized but not used for anything else. Maybe I'm looking at the wrong place?

(I'm willing to contribute if this is not yet supported but just making sure I don't reinvent anything. :) )

[theduderog]

Yes, optional parameters are supported. For SubmitSM, for example, you can see the list here:

https://github.com/mozes/smpp.pdu/blob/master/smpp/pdu/operations.py#L120-L148

To create a PDU with an optional parameter, you can pass the optional param as a keyword argument in the same way that you pass mandatory parameters.

pdu = SubmitSM(9284,
    service_type='',
    source_addr_ton=AddrTon.ALPHANUMERIC,
    source_addr_npi=AddrNpi.UNKNOWN,
   ...
  user_message_reference=9999 #this is an optional parameter
)

[skytreader]

Great. Thanks for that pointer!