SOAP Server implementation for Lather.

Provides a framework for building SOAP web services in Elixir with:

• Automatic WSDL generation from module definitions
• Request/response handling and validation
• Authentication and authorization support
• Phoenix/Plug integration
• Comprehensive error handling with SOAP faults

Usage

Define a SOAP service module:

defmodule MyApp.UserService do
  use Lather.Server

  @namespace "http://myapp.com/users"
  @service_name "UserService"

  @soap_operation %{
    name: "GetUser",
    input: [%{name: "userId", type: "string", required: true}],
    output: [%{name: "user", type: "User"}]
  }
  def get_user(%{"userId" => user_id}) do
    case fetch_user(user_id) do
      {:ok, user} -> {:ok, %{"user" => user}}
      {:error, :not_found} -> soap_fault("Client", "User not found")
    end
  end

  defp fetch_user(id), do: {:ok, %{"id" => id, "name" => "John Doe"}}
end

Then mount it in your Phoenix router or Plug application:

# In Phoenix router
scope "/soap" do
  pipe_through :api
  post "/users", Lather.Server.Plug, service: MyApp.UserService
end

# Or as a standalone Plug
plug Lather.Server.Plug, service: MyApp.UserService