WSDL stands for "Web Services Description Language". Although
designed to be flexible enough to describe many types of web services, it is most often used to describe SOAP web
services.
A WSDL file is just that: a file. More specifically, it's an XML file. It usually lives on the same server you use to
access the SOAP web services it describes, although there's nothing special about it. Later in this chapter, we'll
download the WSDL file for the Google API and use it locally. That doesn't mean we're calling Google locally; the
WSDL file still describes the remote functions sitting on Google's server.
A WSDL file contains a description of everything involved in calling a SOAP web service:
• The service URL and namespace
• The type of web service (probably function calls using SOAP, although as I mentioned, WSDL is flexible
enough to describe a wide variety of web services)
• The list of available functions
• The arguments for each function
• The datatype of each argument
• The return values of each function, and the datatype of each return value
In other words, a WSDL file tells you everything you need to know to be able to call a SOAP web service.
designed to be flexible enough to describe many types of web services, it is most often used to describe SOAP web
services.
A WSDL file is just that: a file. More specifically, it's an XML file. It usually lives on the same server you use to
access the SOAP web services it describes, although there's nothing special about it. Later in this chapter, we'll
download the WSDL file for the Google API and use it locally. That doesn't mean we're calling Google locally; the
WSDL file still describes the remote functions sitting on Google's server.
A WSDL file contains a description of everything involved in calling a SOAP web service:
• The service URL and namespace
• The type of web service (probably function calls using SOAP, although as I mentioned, WSDL is flexible
enough to describe a wide variety of web services)
• The list of available functions
• The arguments for each function
• The datatype of each argument
• The return values of each function, and the datatype of each return value
In other words, a WSDL file tells you everything you need to know to be able to call a SOAP web service.
Comments
Post a Comment
https://gengwg.blogspot.com/