How to pass optional API parameters

Question

I would like some guidance on the proper way to specify optional API parameters. For example the listaddresses api command, where I would like to specify a value for start but not one of count. Since the count parameter must be specified before the start parameter, it appears I must specify a value for count (it can't be null) without generating errors. Is this correct?   

Answer 1

Yes, if you want to pass any parameter, you must also pass all the optional parameters before it. You can just pass the default values as shown in the documentation.