I have a client who has an ASP shopping cart (classic asp) and a Windows based point of sale system both using their own SQL Server databases.
The maker of the Windows point of sale system has a utility that will export the inventory as an XML file and will also retrieve any sales from the shopping cart if it is in their special XML format.
I asked them "where do I make the XML request for the inventory" and they told me it had to be done as a web service. I assumed that their software would either have a place for me to do a POST or GET request for the XML via HTTP or that it would generate it as a file on the hard drive. I have never built a web service, although I have been a developer for more than 15 years, so forgive me for my newbie-ness to this :)
Can anyone get me started with some links or any suggestions on how I can understand this better?
If I understood how I would make a request and allow requests for XML files with a web service, I'm sure I could build it.