A URL alias is an alias that you create to replace a portion of the URL to an API on API Gateway. The URL alias typically replaces the path portion of the URL which identifies the name and invocation endpoint of the API. For example, if the URL is http://test:2225/gateway/RESTCalcService/1.0, you can create a URL alias, calc for an API, then the name and invocation endpoint of the API on API Gateway is replaced with calc, for example, http://test:2225/calc. If the client sends a request that contains the matching alias, then the corresponding URL path is invoked.

In addition to associating a URL alias with a single resource, you can also map different resources for each port, therefore, based on the incoming port, the corresponding resource path is invoked. This makes it possible to define a single URL alias that resolves to different destinations based on the incoming port of the HTTP request.

URL aliases have several benefits:

The URL aliases page displays a list of available URL aliases with the corresponding details including the default URL path, port it is mapped to, and so on. You must have the Manage aliases functional privilege assigned to manage the alias information.

In the URL aliases page, with the Global gateway endpoint section, you can also define global gateway endpoint. For more information about global gateway endpoint, see How do I Define Global Gateway Endpoint?