You are given a WSDL and a sample soap message, is there a good tutorial or sample code in using that WSDL to consume a web service? Does the WSDL follow a certain format in order for which it can be consumed properly? I recall a web service in Java that I changed certain tags and attributes in order for this to work, is there a general convention for the formatting used in WSDLs?
I think this might be harder than #1. You are given a WSDL and a sample soap message. Is there a way to use that given WSDL and not the WSDL generated by C# web service when exposing a web service? Is there a way to somehow "override" the WSDL of the web service to the given web service? Are there any conflicts in formatting and compatibility of the WSDL that ought to be considered?
The quickest and most painless approach is simply to use svcutil to generate the code representing the WSDL. At that point the code produced can be used as a client to query an existing service or you can define a class implemeting the service contact. Once you have the .NET classes the SOAP message example will just serve as documentation.
the default usage would be want you most likely want
svcutil myRemoteService.wsdl
which will generate a a file named [servicename].CS file and an output.config containing the necessary WCF client bindings.
Not sure what you mean by overriding the WSDL as it is the published contract that the service honors. So if you want to change method signatures or behavior it will no longer work as the change will no longer conform to the WSDL.
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.
I have a WSDL file for a Web service created in java
I need to create an identical WSDL file in C#(asmx or WCF doesn't matter) .NET where the only existing web method implementation would be changed but keep the same signature though.
I always have different WSDL files which won't work for the client
EDIT
I ended up using WSCF(web service contract first) it seems the only solution out there
the resulting WSDL with some manual minor modifications seems quite similar to the original file.
Your approach is a little off. I interpret your question as
How to use a WSDL file to create a WCF service?
I have a WCF service. Contract for the service is defined using interface. The implementation is not yet created. I need to create WSDL and XSD corresponding to the contract. I will deliver the soforth generated wsdl to my team members. They must be able to create the interface from the wsdl and create the service. What are the approaches/tools for creating the wsdl and xsd from the C# interface which is used as the contract? Also, how to create the interface back from the WSDL? Do I need to provide both the xsd and wsdl to the developers or only the WSDL?
What is the best approach for WSDL interoperability?
Note: I have two services. One uses Data Contract. Second one uses Message Contract.
Note: I am using Visual Studio 2010 and .NEt 4.0
Reading:-
Generating a WSDL from an XSD file
Can you combine the WSDL and XSD data from a WCF service?
What tool can I use to merge wsdl and xsd file?
Providing the WSDL should be enough as the WSDL would have the reference to the xsd's using the import attribute.
When defining your bindings for your WCF service make sure you use BasicHttpBinding (follows BasicProfile 1.1) which is interoperable.
Also you would consider flattening your WSDL for your service to be highly interoperable as at times php and other java clients might need flat wsdl. If you are using .NET 4.5 then you have this as an inbuild option now else you can check this link on how to flatten your wsdl
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.