is any one knows of online link for common webservices problem and solutions like the one below
1.) we have called a webservice and before getting a response from webservice our server has been crashed and restarted later on, do we again have to request (what if every request is paid?) or we can still have some measure to use the response which we have got.
2.) how to implement security to webservice ( if you know of an online link or e-book that would be fine)