I was trying to generate proxy for a service using the code snippet mentioned here but I realized that the snippet is only for asmx services. Is there anyway to do the same for WCF services in c#?
Okay. After much searching found two classes which can do this for us along with help from others.
codecompiler
WSDLimporter
These two provide a way to download wsdl at runtime, extract contract and endpoint info and create code in C# or VB which can be compiled to create assembly on which reflection can be used to invoke WCF Service.
Hope this helps somebody someday!
Related
I have to implement SOAP based communication between a .NET application and a local courier service. They have provided good documentation of their SOAP service with php samples and wsdl schema at http://www.rapido.bg/soap_help/, but I cannot find my way in implementing it for .NET with C#.
I looked at similar problems online and first tried to add the wsdl as Service reference which didn't create the necessary classes, then tried to add it as Web Reference, which generated the classes and methods, but could't generate some of the parameter types as expected. For example the login parameter was generated as string, whereas in the wsdl it is defined as xsd:struct and in the php sample its created and passed as an anonymous class with two fields.
I tried to implement the communication using web requests and building the SOAP messages manually following some other approaches, but still couldn't get it right.
It will be great if someone can get a simple app working or just let me know how to do it.
Thanks.
Try using WseWsdl2.exe, it will generate C# or VB.Net classes for you that can be used to communicate with the SOAP service of your choice.
Previously I used web services sample from console application, but I don't have much knowledge in that in terms of understanding in xsd and wsdl.
I would like to consume the complex web service to understand xsd and wsdl.
When goggling found some sample free web services, they have provided wsdl file, and service url. I am able to add the web reference in C#, but not understanding how and which method to call, could any body can provide sample code to consume?
Service URL: http://www.webservicex.com/globalweather.asmx?WSDL
Web method : GetWeatherResponse
When I add the service reference from the application I am able to see the these classes.
input1, input2, input3, input4,
output1, output2, output3, output4,
ArticleType, ArticlePtServiceClient, ArticlePTservicechannel
but I'm not able to view GetWeatherResponse()
From the wsdl file can i get to know from which class object we can call the web method?
Theoretical understanding is we can find the web method based on the wsdl.
Eagerly awaiting positive responses. Expecting sample code to call this web method from the web service.As well as requesting you to some references to better understand complex type xsd's.
Thanks in advance.
After lot of R&D understand littele things regarding Web service and WCF.
The only solution is We have to create stub to test in local environment.
Createing stub :
SVCUTIL
still need to learn more, more questions are there in mind. will update here for our reference.
My understanding is that a c# based client "prefers" SOAP because when you add a web service reference it creates a proxy class from the wsdl found at the url you specify.
Which almost makes it transparent to the c# client that we are even using a web service, it almost feels like we are using a local class library. you call methods and you use objects.
My question is can REST achieve the same affect. I assume that it can't since it doesn't have wsdl and thus visual studio can't generate a proxy class for it. But Please correct me if I'm wrong?
A "run of the mill" REST service cannot achieve the same kind of tight integration with C# - mostly because it lacks the metadata that a SOAP service will provide (with a list of methods and their parameters and all that stuff).
The WCF Data Services (built on top of REST) do work much the same way as SOAP services, since the OData protocol contains extensions for pure REST services that provide metadata information needed to create a good, useful client-side proxy.
REST can be used to generate client side class libraries. For Example You can create proxy classes for MS generated REST services. In fact MS is actively pushing this model for Entity Framework based WCF DATA Services, e.g. those used by Silverlight and RIA applications. check out MS ODATA framework for REST which involves creating client objects out of standard REST queries.
http://msdn.microsoft.com/en-us/library/dd673930.aspx
What's the best practices for developing a web service with a WSDL as a start point?
Use SvcUtil to generate your service interface and then develop a service against that. Here is an example.
Your question is a little vaque, but developing web services with .net is quite easy.
Using visual studio, most of the things are generated for you. You can add methods as
[WebMethod]
public string hello(){
return "hello"
}
and luckily once you deploy it, the wsdl is generated for you.
If you are looking to download some entities from a wsdl, you can use the wsdl utility and invoke a wsdl to download the entity class.
Check out the WCF Developer Center on MSDN - it has tons of tutorials, article, screencasts that show you how to create a SOAP based web service, based on code or WSDL.
I found this question helpful when I had the same question in the past.
Create an ASMX web service from a WSDL file
The problem I had was that I was given a WSDL. I needed to create web service methods based on the contract that the WSDL provided.
I'm involved in a project that would call a webservice dynamically.
I have figured out a way to call a webservice method that has no method parameters on it, but now what I need is for me to call web methods that have parameters on it.
Was wondering if there are good examples on how I could create a soap envelope and how I could include this in my HttpWebRequest?
Thank you so much!
Cheers,
Ann
What about serialization with SoapFormatter?
SoapFormatter Class
You can also use strong typed classes by using interfaces and dynamicaly loaded assemblies via
Assembly a = Assembly.LoadFile("Path");
and you'll be able to "hot plug" new proxies or other types.
Is there any reason you want to generate SOAP envelopes manually and use HttpWebRequest to call a web service when you could generate a client proxy from the WSDL (using svcutil.exe or wsdl.exe) and let the framework do the heavy lifting for you?
Normally web services expose a contract that describes the operations you can invoke and the types that are involved allowing clients to discover it and use it.