CMR Service Bridge is a framework that supports the addition of new features via plugins. As a framework, it offers a limited number of routes and handlers, but it is the individual plugins that provide the functionality.

As you can see below, site-routes are extracted from the route-data; the reason we do not extract api-routes (i.e. REST resources), is because api-routes are versioned. As such, a different version of the route may be required at request time. To satisfy that condition, we build the routes dynamically inside the middleware that handles the API versioning.

Lastly, a whole series of middleware (both community-provided and CMR-created) are applied after we perform versioning dispatch. These may be viewed in the cmr-http-kit project.