Express SOAP Middleware

`express-soap` is an Express middleware designed to streamline the creation of SOAP web services within Node.js applications, leveraging the underlying `node-soap` library. Its current stable version is 1.1.4, published approximately two years ago, suggesting a stable or maintenance release cadence rather than rapid iteration. The primary problem it solves is the inconvenient and potentially problematic integration of `node-soap`'s server listener directly with Express, particularly concerning middleware order and convenience. By providing a standard Express middleware, `express-soap` allows developers to mount SOAP endpoints at specific paths (e.g., `app.use('/soap/path', soap(...))`) in a familiar and predictable manner, addressing a common pain point in `node-soap`'s direct usage. It exposes all `node-soap` options directly, ensuring full compatibility while abstracting away boilerplate involved in setting up SOAP listeners, making it a key differentiator for applications requiring SOAP interoperability with an Express backend.