Friday, 25 April 2008

Silverlight HTTPRequest

I need to make my silverlight app talk to a REST web service. Daniel Moth provides the answers in a timely way for me. So follow that link to get the info direct from him. I am going to post the links from his site here. For me, so I don't loose any of this information.

The High Level Statement
Broadly speaking there are 4 options (which you can combine of course) to satisfy the requirement:
1. Call self-describing services such as asmx, WCF, Java services or anything else conforming to SOAP. This is what is mostly used in the enterprise space and you can imagine behind the service a database so the service is a facade into that.
2. Call URL-based services (aka POX or REST) where you must construct the URL yourself by piecing information you read from the service's documentation and then parsing the results that come back which is typically a lamp of XML or JSON. Think e.g. services from amazon, ebay, flickr, youtube, digg etc
3. Consume RSS or ATOM feeds. Hopefully I don't have to give examples of syndication here ;)
4. Raw sockets where communication takes place over the TCP channel.

Links Covering the 4 Sub-Topics Above
- Quickstart on Building a WCF Web Service and Accessing It by Using a Proxy
- Quickstart on Sending and Receiving Plain XML Messages
- Quickstart on Accessing Syndication Feeds with Silverlight
- MSDN Documentation on Working with Sockets
- Karen's post on Silverlight's HTTP Networking Stack
- Wilco's post on HttpWebRequest in Silverlight
- Mahjayar's post on Rundown of webservices-related Functionality in Beta 1
- Mike's post on Silverlight 2 and Sockets
- Tim's post on Calling Web Services in Silverlight 2
- MSDN Documentation on Accessing Web Services in Silverlight (6 rich sub sections)

"I only have 1 hour and 5 minutes to look into this stuff, where should I go?"
You need to watch the session from MIX titled "Working with Data and Web Services in Microsoft Silverlight 2" delivered by Eugene. The direct link to the WMV file is here (save as).

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