Mock Service Worker - Seamless REST/GraphQL API mocking library for browser and Node

Mock by intercepting requests on the network level. Seamlessly reuse the same mock definition for testing, development, and debugging. Browser usage is what sets Mock Service Worker apart from other tools. Utilizing the Service Worker API that intercepts requests for the purpose of caching, Mock Service Worker responds to captured requests with your mock definition on the network level. This way your application knows nothing about the mocking.