Web Services API Versioning

Question

I offer a small Web Services API to my clients which I plan to evolve over time. So I need some sort of versioning, but I can\'t find any information about how you do someth

Answer 1

One of the possibilities is to design all web service operations to have only one parameter of a type that inherits from some abstract type that holds version number. This approach is implemented by eBay web services platform. Something like the following:

  
  ....


  
   
   ....

then use AddCustomerRequestType as a type of only parameter 
in addCustomer web service operation.

Additionally if you work over http you may require to add version as a http GET parameter to web service endpoint url, so you'll be able to detect requested version easily http://server/service?version=1