Consuming OData based Rest service in C# [en-US]

Posted by ruimachado on Geeks with Blogs See other posts from Geeks with Blogs or by ruimachado
Published on Mon, 08 Oct 2012 07:49:45 GMT Indexed on 2012/10/09 15:40 UTC
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Nowadays comunication between applications is an active topic with daily usage and a large amount of pratical appliances. While developing an app in witch I had to consume an OData I found out that combining Linq with my code made this operation pretty easy.

The algorithm to consume OData starts with adding a service reference to Visual Studio:

After adding the service reference in wich you define the uri to the service, we start building our code.

In your code the algorithm is the following:

Define the Uri to your OData Service
Define the context of your odata, wich contains all entities exposed by the service.
Query the context using Linq
Print the result

Easy and simple.

Example code:

01public static void Main(string[] args){
02 
03        Uri serviceUri= newUri("http://example.host.odataservice.net/service.svc", UriKind.Absolute);
04        ODataService.ServiceEntities context = newODataService.ServiceEntities (serviceUri);
05 
06        context.Credentials = newSystem.Net.NetworkCredential(Username,Password);
07 
08         var query = from ServiceObject in context.YourEntity
09                     select ServiceObject ;
10 
11        foreach (var myObject in query)
12        {
13            Console.WriteLine("\n Field1: {0} | Field2: {1}",
14            myObject .Field1, myObject .Field2);
15 
16        }
17}

That’s it.

Thank you,

Rui Machado

rpmachado.wordpress.com

Developer IT

Consuming OData based Rest service in C# [en-US] - Developer IT

Consuming OData based Rest service in C# [en-US]

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