Rants Tagged with “Data Services”
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I got to spend some time with Scott Hanselman on his Podcast (Hanselminutes) discussing Astoria and how it *not* just exposing your database to the Internet.We delved into REST and how Astoria and Silverlight are a good mix for the right application.
Check it out when you have a chance.
ADO.NET Data Services Silverlight Extensions now released. This library is used in Silverlight 2.0 projects to access Astoria without all the headaches of serialization. Check it out!
I will be updating my http://silverlightdata.com site soon with a new build including these bits.
If you're looking for in-depth docs on the new CTP of
ADO.NET Data Services (e.g.
Astoria), there is a .doc file on the
MS Live Labs site with a lot of information. Here's a link to it!
Astoria has been renamed (ASP.NET Data Services) and added to the ASP.NET Extensions package (which includes the MVC support as well as other facilities). Looks like ASP.NET Data Services is slated for a release in Q2 2008. If you're interested in Astoria, go grab the CTP here:
http://asp.net/downloads/3.5-extensions/
Over the past week there have been a flurry of new projects coming out of Microsoft, mostly in the form of CTP's. I've been downloading like crazy and will likely be discussing my experience with them in the coming week. In case you missed any of them:
I expect that with the release of the EF Beta 3 means Astoria is coming soon. I'll let you know when it drops! Time to start digging in.
I've updated my Silverlight 1.1/Entity Framework/Astoria mashup to use the Astoria Silverlight Client API instead of raw JSON serialization. The code contains both methods (but they are switched out with a project-level #define). If you're interested in seeing how this works in practice, go grab the code. Here's a direct code link:
http://silverlightdata.com/mashup.zip
For those who do not know what the SilverlightData.com site is about...its an example of Silverlight 1.1 working with Entity Framework and Astoria. When I released SilverlightData.com last month, I had expected to allow users to download the source code so they can get a taste of what Silverlight 1.1 and Astoria together would look like. Unfortunately because of a bug on my part, the source link did not work. I've addressed that and you can now download the source code.
Here's a direct link to the source code:
I've been digging into the Entity Framework and Astoria and decided to create a quick little mashup of Silverlight and those two technologies. The result is this little product viewer using the Northwind database:
The goal of the project was to use Silverlight 1.1 to design the UI, Entity Framework to design the DAL and use Astoria for the client-server communication. I am pretty happy with the result. I am using September previews of Entity Framework and Astoria as well as the Alpha of Silverlight 1.1 so the site may have problems from time to time as these are early releases of the products.
Astoria in particular is a very early build (and they've even changed the search syntax already so when the new version is released I'll change this). The September version of Astoria comes with a Silverlight client data layer that just does not work for me currently. But that wasn't a problem as Astoria (for those who don't know) is a REST-based API for access a data model. Astoria supports returning results in XML, JSON and RDP. So all I did was use the JSON format and Silverlight 1.1's built-in JavascriptSerialilzer to convert the results to in-memory objects.
You can download the source here:
http://www.silverlightdata.com/mashup.zip
UPDATE: Doesn't seem to work with Firefox. I believe this is an issue with Astoria (astoria is changing the search syntax to be more compatible with other browsers). Might also be my resizing logic. I'll see if I can get it working with FF later this week.
Come see me and Glen Gordon talk at Phipps Plaza in Atlanta about Visual Studio 2008, "Astoria", Entity Framework and Silverlight...and see them working gracefully together!
Click here to register for the event before it fills up.
