US Patent 11914986 API gateway self paced migration

Disclosed herein are system, method, and computer program product embodiments for self-paced migration of an application programming language (API) gateway. An embodiment operates by applying a policy chain comprising a first set of policies to an API request received at a first API gateway. The embodiment forwards the API request to a second API gateway and applies, at the second gateway, a virtual policy chain comprising a second set of policies to the API request. The embodiment then forwards the API request to the first API gateway and routes the API request to a corresponding backend API.