What is the relationship between OData , Atom, Json and WCF Data Service

wcf-data-services
Joe.wang picture Joe.wang · Jul 27, 2012 · Viewed 8.4k times · Source

Recently I was learning WCF Data service. I know the Data Service expose the Data As Rest Resource Which can be manipulated by URL. But There are many technologies in this field. Hope someone can help me understand these .Thanks

Answer

Vitek Karas MSFT picture Vitek Karas MSFT · Jul 27, 2012

OData is a protocol to expose (as you stated) Data As a REST Resource. The page to go to learn more is http://www.odata.org.

WCF Data Services is an implementation of the OData protocol (both client and server) by Microsoft on the .NET platform. So a service created by WCF Data Services uses the OData protocol.

ATOM is a standard format, and it is one of the possible wire formats for transferring data in the OData protocol. The OData protocol defines extensions to it. For better picture, ATOM is an XML based format which defines XML elements and their meaning (feeds, entries, links), and OData uses that along with couple of its own XML elements to serialize the data.

JSON is a standard format (for serialization of JavaScript objects) and it is one of the possible wire formats for transferring data in the OData protocol. So OData protocol uses JSON to serialize the data.

Related questions

Turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the <serviceDebug> configuration behavior) on the server

I have a WCF service that has been working perfectly, and something has changed and I don't know what. I get this exception: System.ServiceModel.FaultException: The server was unable to process the request due to an internal error. For …

Read More
Dispatcher BeginInvoke Syntax

I have been trying to follow some WCF Data Services examples and have the following code: private void OnSaveCompleted(IAsyncResult result) { Dispatcher.BeginInvoke(() => { context.EndSaveChanges(result); }); } Which is called by the following: this.context.BeginSaveChanges(SaveChangesOptions.Batch, this.OnSaveCompleted, …

Read More
Transfer large amount of data in WCF service

I have created a web service in WCF which returns more than 54000 data-rows with 10 data in each row. I have used the wsHttpBinding for communication. The service works well with less data (i.e. 2000 rows) but it bombs out when …

Read More