I have an xsd-file with which I generate dataclasses (with xsd.exe or WSCF-blue) for building a WCF-service.
Then I add the generated classes to the operations in the WCF-service like this:
MyGeneratedClassOUT operation1(MyGeneratedClassIN request)
When I call that operation from a client, the client gets back MyGeneratedClassOut request filled with null-values, even tough i fill them up server-side.
Does anyone have an idea how to solve this?
Could this be a problem in the XSD-file or in the WCF configuration?
This is most probably a namespace issue. Check with Fiddler if the request and response have the same namespaces.
Related
I used sudzc to access web services. However the jboss server side didn't like the soap message generated by sudzc. I suspect that this issue is about namespace... Have anybody exprienced this before?
I had the same problem and was able to fix it by removing the default namespace (xmlns=) altogether and search/replacing all method names, adding an explicit namespace as prefix
to all names.
The main differences I see is Sudzc not including an empty header, and uses different namespaces such as soap instead of soapenv as well as set the default namespace of the document. I have no experience with JBoss but it may not be able to handle these differences (although I would think it would) but you can first try including an empty header. SudzC is open source if you want to check out what is happening.
Check the response from web service. Then modify the source code according to the response error. Check this post as an example.
sudzC SOAP web service namespace problem
I'm having very strange issue with my WCF Service Proxy client generated by "svcutil.exe" . My WCF Service works very fine if I don't have a function that returns DataTable. As soon as I add a method that returns a DataTable the client generated by svcutil.exe is behaving very strangely. The Interface is no longer found and client is not able to call the service. But if I add as a Service Reference its working very smoothly. I know its not a good habit to use DataTable as a return type but I need to. I cannot use the Service Reference :-( Any idea why its behaving or what I'm missing!!!
Have a look at the DataTableSurrogate class. It is used by the SyncFramework for serialization and really easy to use.
MSDN DataTableSurrogate
You shouldn't really serialize datasets, instead you should use datamodels and keep anything to do with datasets, tables, readers etc on your backend & in the business layer.
But.. if you want to do so you need to add the following "include" in svcutil, which is causing your issue. (Tells to reuse the types defined in System.Data.dll and not generate them in the proxy)
/r:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Data.dll
I've got some WCF services (hosted in IIS 6) which use the Enterprise Library (4.0) Validation Application Block. If a client submits a message which fails validation (i.e. gets thrown back in a ValidationFault exception), I'd quite like to be able to log the message XML somewhere (using code, no IIS logs). All the validation happens before the service implementation code kicks in.
I'm sure it's possible to set up some class to get run before the service implementation (presumably this is how the Validation Application Block works), but I can't remember how, or work out exactly what to search for.
Is it possible to create a class and associated configuration that will give me access to either the whole SOAP request message, or at least the message body?
Take a look at using the Policy Injection Application Block...
I'm currently developing an application in which I intercept (using PIAB) all requests incoming to the server and based on the type of request I apply different validation behavior using the VAB.
Here's an article about integrating PIAB with WCF:
http://msdn.microsoft.com/en-us/magazine/cc136759.aspx
You can create different inteception mechanisms such as attributes applied to exposed operations.
You could log the whole WCF Message:
http://msdn.microsoft.com/en-us/library/ms730064.aspx
Or you could combine it with Enterprise Library Logging Application Block.
I found a blog post which seems to do what I want - you create a class that implements IDispatchMessageInspector. In the AfterReceiveRequest method, you have access to the whole incoming message, so can log away. This occurs after authentication, so you also have access to the user name - handy for logging. You can create supporting classes that let you assign this behaviour to services via attributes and/or configuration.
IDispatchMessageInspector also gives you a BeforeSendReply method, so you could log (or alter) your response message.
Now when customers attempt to literally hand-craft SOAP request messages (not even using some kind of DOM object) to our services, we have easy-to-access proof that they are sending rubbish!
I am using WCF as a client for a java web service. I have not control over the server side.
In the response I get from the web service there is no xmlns attribute on the first element inside the soap headers. Because of this WCF returns null as the result of web service call.
Apart from the missing xmlns the response is perfect and if I add the xmlns using fiddler then everything works as expected. I don't know enough about SOAP to know if the xmlns attribute is really required.
Is there a way to avoid this problem, either getting WCF to ignore the missing xmlns attribute or even a hook that would allow me to manually munge the response before it gets to WCF?
This appears to be a pretty old question, so I'm not sure if you ever addressed this. If you are working with a WCF client for a Java Axis service, you will find that you will need to get used to using MessageInspectors to override the behavior of the request and response.
Using the AfterReceiveReply method you should be able to copy the original message and alter the headers. Also check out Step 5 from this MSDN article.
You can't alter the response headers directly in this method as far as I can see, because they are read-only, therefore copying and then replacing the reply with a doctored version is the only way I can think of to correct the missing namespace.
I have a VB.NET web service that calls a third party web service. How can I view the SOAP message generated by .NET before it is sent to the third party web service and how can I see the SOAP response before it is serialized by .NET.
When creating a standalone EXE, I see the Reference.vb file that is automatically generated, but don't see a similar file when my project is a web service. I have found lots of C# code to do this, but none in VB.NET.
Edit - Fiddler and TCP loggers are great, but will not work for my purposes. I need to be able to access the raw SOAP messages from within the application so I can log them or modify them. I need to do more than just see the messages going back and forth.
You can use fiddler or a tcp sniffer to filter and identify all outgoing and incoming traffic on your host.
This is if you want to see the xml request and response.
How about using an extension to allow you to examine the SOAP message?
Accessing Raw SOAP Messages in ASP.NET Web Services
http://msdn.microsoft.com/en-us/magazine/cc188761.aspx
I was trying to do the same thing and this seems to work for me:
Dim message As String = OperationContext.Current.RequestContext.RequestMessage.ToString()
I didn't think it would be that easy since most of the time ToString() returns the name of the class, but I tried it out and low and behold.
I know you asked this back in January so if since then you've figured out a better way let me know.
Please note that if you're catching the exception in a class that implements IErrorHandler then you have to perform this operation from within the ProvideFault() method instead of the HandleError() method because the context is closed before it gets to call the HandleError() method.
Hope this helps.