The message was incorrectly formed or contained incorrect information. 4: SOAP-ENV:Server. There was a problem with the server, so the message could not proceed. SOAP Fault Example. The following code is a sample Fault. In this tutorial, we'll learn how to build a SOAP client in Java with JAX-WS RI. First, we'll generate the client code using the wsimport utility, and then test it using a JUnit. For those starting out, our introduction to JAX-WS provides great background on the subject. Aug 10, 2019 Today, we’ll see how our Support Engineers enable WooCommerce SOAP client and make it work. Why we need SOAP client? Let’s first check on the need of SOAP client in WooCommerce. SOAP aka Simple Object Access Protocol is a messaging protocol that allows communications between processes running on different servers. In WooCommerce, some Web.

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Hello there, fellow enterprise developer. Before we get to the solution to our problem, let’s take a minute to close our eyes and reflect on our past decisions that led us to this moment. What could we have done differently? Was SOAP inevitable? Is pain a necessary aspect of joy? Ok, now open your eyes, and we can face this reality together.

This post will show how we can consume a SOAP web API in our .NET Core projects. The steps we will take are few, but the value we derive will be limitless. Let’s get started!

Step 1. Install .NET Core 2.1

We will be using a .NET Core tool, which targets .NET Core 2.1. Don’t skip this step; we need .NET 2.1 and not some other version of the SDK.We can download the installer for our specific operating system on the .NET site.. This tool targets 2.1 and that is why we need to install this SDK specifically.

Step 2. Tool Manifest

In all likelihood, we only need to use SOAP in one of our projects, so its recommended to use a local tool manifest. In our solution directory, we can run the following command.

When the command completes successfully, we will see a .config/dotnet-tools.json file—the JSON file stores our installed .NET tools.

Step 3. Install `dotnet-svcutil` Tool

We need to install the dotnet-svcutil tool. We can install it locally by running the following command.

We can install the tool globally for those of us that will be dealing with multiple SOAP APIs.

Step 3. Generating The Service Client

We’re almost nearing the end of this post. From the command line, we need to generate our web service reference. In our project directory, not solution directory, we need to run the following command.

There are many public SOAP APIs, and we can test the process using a text casing API found at here.

When running the command, we should see the tool output the results.

The dotnet-svcutil will update our .csproj file with the necessary System.ServiceModel dependencies. The tool will also create a new ServiceReference folder with two files: dotnet-svcutil.params.json and Reference.cs. The Reference.cs file will have the C# implementation of our SOAP API.

Step 4. Consuming the SOAP API

Consuming the newly generated SOAP interface in our code is as straight-forward as new Client(); depending on the SOAP client we generated, the name will be different. Let’s look at the implementation from our SOAP service listed above.

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Conclusion

The dotnet-svcutil works on multiple different types of web services, including WCF. Anyone interested in the tool’s capabilities can run dotnet dotnet-svcutil -h to see all the options available to us. For folks who need more information on the tool, [you can find the documentation here].(https://docs.microsoft.com/en-us/sharepoint/dev/general-development/step-2-adding-a-web-reference).

Go forth enterprise developer, and SOAP on! Thanks for reading, and let me know in the comments if this post helped.

Some of Microsoft’s built-in code generation/tooling is really janky. One such example is the code generator that will produce service references and proxy classes from a SOAP WSDL definition. I’ve never liked this particular feature of Visual Studio. The service classes themselves don’t play nicely with injection, behave strangely with instantiation, scoping, singleton patterns, and are generally so .NET 1.1…

How does one call a SOAP service with the HttpClient in newer versions of .NET, then?

Typically, a SOAP POST request posts “text/xml” with Envelope and Body nodes. Namespace attributes are also specified. It’s actually quite easy to build up the Xml with LinqToXml. In my case, I’m calling a specific endpoint to get a purchase order. The method takes some credentials and a few other identifiers. We can create an XDocument directly with something like this:

The only other thing specific to a SOAP service is that the SOAP endpoint generally expects a “SOAPAction” header indicating the action that you’re calling. Wrapping the request content with HttpClient request looks like this:

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You’ll notice that we use Link to Xml to grab the element “GetStuff” that is within the soap body. This allows us to pass the Xml from that specific element to the static method that deserializes the response to my own object. This method uses the XmlSerializer:

For the XmlSerializer to function properly, we only need to then create objects using Xml attributes indicating how elements or attributes are mapped to properties. My particular response looks something like this:

What we really want to do is parse the “GetStuffResult” element into an object. That object will have a PurchaseOrder member and a member that is a list of ProductInformation. Our object then, to properly deserialize only needs to be properly decorated:

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The PurchaseOrder and ProductInformation classes will also have Xml attribute decorations to properly map element/attribute values to properties. I won’t bore you with that, though. I like this approach because now I have full control over the Http requests/flow and none of the rigidity and strange behavior I have witnessed in the past with Visual Studio’s service reference proxy generator. I’m also not dealing with a set of proxy classes. All of the models are my own. Another consideration is that the older service proxy generators may not even work with .NET Core. This approach allows me to follow the other patterns I have mentioned for consuming other API’s.