Correct WCF implemetation?

Question

Hey folks!

I have developed a Silverlight Application wich is used to create mp3 playlists. The SL application uses WCF services from an existing web site. I added the services by "Add service reference..." in the SL project. Is this the propper way to add services???

A service call looks like:

1    CommonDataService.CommonDataServiceClient service = new PlanetDigital.Silverlight.BoxSteering.CommonDataService.CommonDataServiceClient();
2    service.GetUserIntendedOrganisationCompleted += new EventHandler(service_GetUserIntendedOrganisationCompleted);
3    service.GetUserIntendedOrganisationAsync();

 Here is the ServiceReference.ClientConfig:

1    <configuration>
2      <system.serviceModel>
3        <bindings>
4          <basicHttpBinding>
5            <binding name="BasicHttpBinding_IExecutionPlanService" maxBufferSize="2147483647"
6              maxReceivedMessageSize="2147483647">
7              <security mode="None" />
8            </binding>
9            <binding name="BasicHttpBinding_IMp3PlayListService" maxBufferSize="2147483647"
10             maxReceivedMessageSize="2147483647">
11             <security mode="None" />
12           </binding>
13           <binding name="BasicHttpBinding_IMp3TitleService" maxBufferSize="2147483647"
14             maxReceivedMessageSize="2147483647">
15             <security mode="None" />
16           </binding>
17           <binding name="BasicHttpBinding_ICommonDataService" maxBufferSize="2147483647"
18             maxReceivedMessageSize="2147483647">
19             <security mode="None" />
20           </binding>
21         </basicHttpBinding>
22       </bindings>
23       <client>
24         <endpoint address="http://10.158.64.250/PlanetDigital/Service/WCFServices/BoxSteering/ExecutionPlanService.svc"
25           binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IExecutionPlanService"
26           contract="ExecutionPlanService.IExecutionPlanService" name="BasicHttpBinding_IExecutionPlanService" />
27         <endpoint address="http://10.158.64.250/PlanetDigital/Service/WCFServices/BoxSteering/Mp3PlayListService.svc"
28           binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IMp3PlayListService"
29           contract="Mp3PlayListService.IMp3PlayListService" name="BasicHttpBinding_IMp3PlayListService" />
30         <endpoint address="http://10.158.64.250/PlanetDigital/Service/WCFServices/BoxSteering/Mp3TitleService.svc"
31           binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IMp3TitleService"
32           contract="Mp3TitleService.IMp3TitleService" name="BasicHttpBinding_IMp3TitleService" />
33         <endpoint address="http://10.158.64.250/PlanetDigital/Service/WCFServices/Common/CommonDataService.svc"
34           binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_ICommonDataService"
35           contract="CommonDataService.ICommonDataService" name="BasicHttpBinding_ICommonDataService" />
36       </client>
37     </system.serviceModel>
38   </configuration>

As you can see, I entered the servers ip address. If so i can enter the the application and receive all data but not when I am on the server.

If I enter localhost, I'm able to call the app from my machine but the services don't get called (no data are transmitted), I can access it directly on the server and the data is transmitted.

What do i have to do, to reach the services from anywhere i call the sl app.

It would be awesome if anybody can help me out of this.

Sorry for my bad english ;)....

Thx in adv! James

Answer 1

Hi,

Are you able to browse your WCF Service thorugh localhost ? Can you post your web config's system.serviceModel tag?

 

Answer 2

Yes i can browse the service with:

- http://localhost/PlanetDigital/Service/WCFServices/BoxSteering/Mp3TitleService.svc

- http://machineName/PlanetDigital/Service/WCFServices/BoxSteering/Mp3TitleService.svc

- http://10.6.64.250/PlanetDigital/Service/WCFServices/BoxSteering/Mp3TitleService.svc

 Here is the System.ServiceModel Tag from the web.config of the web site:

 

<system.serviceModel>
		<bindings>
			<basicHttpBinding>
				<binding name="LargeBuffer" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647">
					<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/>
				</binding>
			</basicHttpBinding>
		</bindings>
		<behaviors>
			<serviceBehaviors>
				<behavior name="Mp3PlayListServiceBehavior">
					<serviceMetadata httpGetEnabled="true"/>
					<serviceDebug includeExceptionDetailInFaults="false"/>
				</behavior>
				<behavior name="CommonDataServiceBehavior">
					<serviceMetadata httpGetEnabled="true"/>
					<serviceDebug includeExceptionDetailInFaults="false"/>
				</behavior>
				<behavior name="Mp3TitleServiceBehavior">
					<serviceMetadata httpGetEnabled="true"/>
					<serviceDebug includeExceptionDetailInFaults="false"/>
				</behavior>
				<behavior name="ExecutionPlanServiceBehavior">
					<serviceMetadata httpGetEnabled="true"/>
					<serviceDebug includeExceptionDetailInFaults="false"/>
				</behavior>
			</serviceBehaviors>
		</behaviors>
		<serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
		<services>
			<service behaviorConfiguration="Mp3PlayListServiceBehavior" name="Mp3PlayListService">
				<endpoint address="" binding="basicHttpBinding" bindingConfiguration="LargeBuffer" contract="IMp3PlayListService"/>
				<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
			</service>
			<service behaviorConfiguration="CommonDataServiceBehavior" name="CommonDataService">
				<endpoint address="" binding="basicHttpBinding" bindingConfiguration="LargeBuffer" contract="ICommonDataService"/>
				<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
			</service>
			<service behaviorConfiguration="Mp3TitleServiceBehavior" name="Mp3TitleService">
				<endpoint address="" binding="basicHttpBinding" bindingConfiguration="LargeBuffer" contract="IMp3TitleService"/>
				<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
			</service>
			<service behaviorConfiguration="ExecutionPlanServiceBehavior" name="ExecutionPlanService">
				<endpoint address="" binding="basicHttpBinding" bindingConfiguration="LargeBuffer" contract="IExecutionPlanService"/>
				<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
			</service>
		</services>
	</system.serviceModel>

 

Answer 3

Hi,

The only difference I could find is dns tag:

<service behaviorConfiguration="Mp3TitleServiceBehavior" name="Mp3TitleService">

<endpoint address="" bindingConfiguration="LargeBuffer" binding="basicHttpBinding" contract="IMp3TitleService">

<identity>

<dns value="localhost" />

</identity>

</endpoint>

<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />

</service>

and diagnostics tag before "behaviors" tag:

<diagnostics wmiProviderEnabled="false">

<messageLogging logMalformedMessages="false" logMessagesAtServiceLevel="false" logMessagesAtTransportLevel="false" />

</diagnostics>

Please add this and check. Also try to debug your WCF Service to check whether you are getting data in WCF service.

HTH

Answer 4

Thanks for your quick reply, but nothing changed. Other ideas?

Answer 5

Are you able to get data from WCF Service with localhost ?

Answer 6

i can collect data through the wcf service with localhost but only if I am on the webserver per remote desktop.

Answer 7

Hi,

What do you mean by " webserver per remote desktop "?

Your project is on your machine? Are you using LinToqSQL ?

Answer 8

I'm developing on my local mashine and deploying it afterwards... to test it i surf the deploy-url and also check it directly on the webserver.

It's a windows server (2003 or 2008) for our IPTV-CMS.

 On my local develop machine i do "Add service reference..." and when i deploy the hole solution I change the

1    <endpoint address="http://localhost:50670/PlanetDigital/Service/WCFServices/BoxSteering/ExecutionPlanService.svc"
2            binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IExecutionPlanService"
3            contract="ExecutionPlanService.IExecutionPlanService" name="BasicHttpBinding_IExecutionPlanService" />

to

1    <endpoint address="http://10.158.64.250/PlanetDigital/Service/WCFServices/BoxSteering/ExecutionPlanService.svc"
2            binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IExecutionPlanService"
3            contract="ExecutionPlanService.IExecutionPlanService" name="BasicHttpBinding_IExecutionPlanService" />

I thought that "localhost:50760" makes no sense on the webserver so i changed it to "10.157.64.250".
I'm using Linq for some List<T> and Dictonary<T, M> Object, but no LinqToSql.

Answer 9

Hi,

Have you added Client policy ?

Check this link:

http://blogs.msdn.com/silverlightws/archive/2008/04/16/debugging-web-service-usage-in-silverlight-2.aspx

HTH

Answer 10

Maybe i found the reason. Our system is deliverd mostly to hotels. So when the reciptionist-lady call the application, she calls

--> http//192.168.0.xxx/Service/WCFServices/BoxSteering/Mp3TitleService.svc

When a developer connects to the system, he must connect over a vpn tunnel to the system and calls

--> http//10.xxx.64.250/Service/WCFServices/BoxSteering/Mp3TitleService.svc

When someone calls the application directly on the server he call

--> http//localhost/Service/WCFServices/BoxSteering/Mp3TitleService.svc

Can i detect the URL of the host-site in my silverlight application and pass the right sourceurl to the service at runtime

Can i pass 192.168.0.xxx or 10.xxx.64.250 or localhost at runtime to my service????

1 	ExecutionPlanService.ExecutionPlanServiceClient service = new PlanetDigital.Silverlight.BoxSteering.ExecutionPlanService.ExecutionPlanServiceClient();
2              service.GetReferencesCompleted += new EventHandler(service_GetReferencesCompleted);
3              service.GetReferencesAsync(DataSource.Id);

 

Answer 11

I solved the problem... thanks for help