test your system with real data.
GoReplay is an innovative open-source solution which allows you to capture your existing users activity and re-use it for testing your application. With GoReplay you can perform shadowing, load testing, or detailed analysis and monitoring.
Gor is an open-source tool for capturing and replaying live HTTP traffic into a test environment in order to continuously test your system with real data. It can be used to increase confidence in code deployments, configuration changes and infrastructure changes.