Example of DPG method call in C#

dpg.cs

    string newProjectName = "MyProject";
    RequestContent creationRequestContent = RequestContent.Create(
        new {
            description = "This is the description for a test project",
            language = "en",
            multilingualResource = false,
            settings = new {
                defaultAnswer = "No answer found for your question."
                }
            }
        );

    try {
        Response creationResponse = client.CreateProject(newProjectName, creationRequestContent);
        var doc = JsonDocument.Parse(creationResponse.Content.ToMemory());
        var creationDate = doc.RootElement.GetProperty("createdDateTime");
        Console.WriteLine($"\nSuccessfully deployed {newProjectName} on {creationDate}.");

    }
    catch (RequestFailedException e)
    {
        Console.WriteLine(e);
        throw;
    }

var creationDate = doc.RootElement.GetProperty("createdDateTime");

You may need to cast this to print it correctly.

I think it would help illustrate the point if you showed the expected JSON returned from CreateProject.