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.
Related
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!
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.
Can somebody please define the difference between HttpWebRequest and Adding service reference when using web services? Also what is the best approach.
Adding a service reference gives you the benefit of the plumbing code necessary to call the web service methods as if you were just calling methods. It abstracts dealing with the request/response.
I think in terms of performance consuming webservice through HttpWebRequest would be faster when compared with Add service reference approach as in the later case the process involves object construction at runtime & further it carries lot of other overheads (for instance other webmethods part of web service) which you may not be using it in that particular context.
UPDATE:
Looks like my guess was wrong.
In this https://web.archive.org/web/20210619192654/https://www.4guysfromrolla.com/articles/022410-1.aspx there are some statss on SOAPcall vs service reference approach. The test revealed that service reference approach is much faster.
Add reference can only be done with web service URLs (.net amsx services, wcf services, and other SOAP based services like in java,php or ruby etc). Adding a reference generates stub which contains all the classes necessary for calling web services. It includes all object types that are passed as parameters or returned from web methods.
On the other hand HttpWebRequest can be used not only to call webservices but simple aspx pages, HTML pages or any HTTP or HTTPS based urls. Its just like hitting a URL in browser.
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 have 2 web services with about 6 web methods in total, most of the code is ofc sitting in assemblies any way, and the web service asmx is really just calling these assembly methods and returning their return type.
How much effort is it to convert the web services from ASMX to WCF?
I pretty much at this stage control the only - non web based clients connecting to the web services, so this is not really a problem, product is in prelaunch.
Check out some of those blog posts and articles on how to do it:
Migrating ASMX to WCF (unfortunately, this link in no longer valid)
Phased Migration From ASMX to WCF
ASMX to WCF migration
and many more - search for "Migration ASMX to WCF" and you'll get a ton of hits
Marc
You should find it extremely simple to convert - especially if your existing asmx web methods are just calling into other classes. Just create a new WCF Service from Visual Studio - that way you still have your existing web services intact. It will automatically create an http end-point for your so you can just dump it straight into IIS (with a little configuration). You will need to describe your DataContract classes but that it trivially simple too.
I did this recently and it was a joy!