Broadcom API Gateway (formerly CA Technologies API Gateway) is a service that sits between a client and a server. A server could be any type of server that serves content, such as a web server, an application server, an FTP server, et cetera.
For example, let's say you want requests for www.example.com to route through the API Gateway. First, do the following:
Then you could Publish a Web API.
At this point, the API Gateway isn't doing much. It's just routing requests on. Let's add some security controls. Let's say you want to require users to authenticate before returning www.example.com. This can be done by doing the following:
If the user forgot their password, you can reset the users password.