For automation, transformation and own SSL.
There are times when you need to automate/schedule the running of a http process or transform a request/response between a http client and mydigitalstructure.
For example code/starter app, check out the Using Node.js with mydigitalstructure Getting Started page.
You can also use this method to enable your own SSL certificate.
You could build a http proxy in many different ways; the following are some resources to help you get a start.