Please help…web services question…?
I have an assignment to complete, and I don’t even understand the question. Please could you try and explain it to me in simple terms…?
Interface Implementation:
For this task you need to code at least one part of your client application to show how your selected
technologies
• implement one or more message exchanges between your client and a web service provider to
retrieve information for use in your client;
• implement one or more user screens to show how data can be requested and retrieved from a
web service provider and then displayed to the user.
I need the bullet points explained. I made an API of Google Maps, BBc News, Yahoo Images and Twitter. I just did this using GET and POST HTTP. I don’t really understand XML messaging etc.
Any help will be GRATELY appreciated.
Thank you =)
Web services exchange data using XML. I like to think of web services as dynamic link libraries for web. A web service is really a collection of functions that return values. Instead of using binary machine instructions to call these methods, XML is exchanged over a network to tell the service to execute a method, and the return results (if any) are returned as XML.
For the first bullet point, you want to write some code that calls a web service method (maybe a twitter or Google Maps method).
For the second bullet point, you want to display the data returned from a web service call.
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Tags: google map api twitter, maps, mashup, twitter, twitter map api, visualization, web2.0