Here is one breakdown: Front-end tier -> User Interface layer usually consisting of a mix of HTML, Javascript, CSS, Flash, and various server-side code like ASP.Net, classic ASP, PHP, etc. Think of this as being closest to the user in terms of code. Middleware, middle-tier -> One tier back, generally referred to as the “plumbing” … Read more
Although REST is stateless, it has state transfer in its name. It’s a little bit confusing to everyone. Stateless When you open a web page in the browser, you will act as a service consumer and the www server will act as a service provider to serve you with a webpage. If it is a … Read more
If you’re using Eclipse, just have your WSDL in a .wsdl file, eclipse will validate it automatically. From the Doc The WSDL validator handles validation according to the 4 step process defined above. Steps 1 and 2 are both delegated to Apache Xerces (and XML parser). Step 3 is handled by the WSDL validator and … Read more
Is Web Service a higher level representation of RPC? Yes, it is. A web service is a specific implementation of RPC. At its lowest level, Web Service connects to the Socket, using the HTTP protocol, to negotiate sending a payload that is executed in a remote space (remote space can be the same computer). All … Read more
The reason this is out of scope for the specification is the wide range of ways to accomplish this connection between the two entities. The main question is how complex is your deployment. For example, do you have one server managing authentication and access, and a set of discrete services each with its own servers … Read more
There’s another, very secure method. It’s client certificates. Know how servers present an SSL Cert when you contact them on https? Well servers can request a cert from a client so they know the client is who they say they are. Clients generate certs and give them to you over a secure channel (like coming … Read more
Yahoo’s api provides a CSV dump: Example: http://finance.yahoo.com/d/quotes.csv?s=msft&f=price I’m not sure if it is documented or not, but this code sample should showcase all of the features (namely the stat types [parameter f in the query string]. I’m sure you can find documentation (official or not) if you search for it. http://www.goldb.org/ystockquote.html Edit I found … Read more
Unfortunately the tempuri.org URL now just redirects to Bing. You can see what it used to render via archive.org: https://web.archive.org/web/20090304024056/http://tempuri.org/ To quote: Each XML Web Service needs a unique namespace in order for client applications to distinguish it from other services on the Web. By default, ASP.Net Web Services use http://tempuri.org/ for this purpose. While … Read more
Can some body explain me the differences between a Document style and RPC style webservices? There are two communication style models that are used to translate a WSDL binding to a SOAP message body. They are: Document & RPC The advantage of using a Document style model is that you can structure the SOAP body … Read more