Flashback

Flashback is designed to mock HTTP and HTTPS resources, like web services and REST APIs, for testing purposes. It records HTTP/HTTPS requests and plays back a previously recorded HTTP transaction—which we call a "scene"—so that no external connection to the internet is required in order to complete testing. Flashback can also replay scenes based on partial matching of requests. It does so using “match rules.” A match rule associates an incoming request with a previously-recorded request, which is then used to generate a response.