traffic-proxy
There are 2 repositories under traffic-proxy topic.
naqvis/pipy
Pipy is a tiny, high performance, highly stable, programmable proxy.
sergray/goreplay
GoReplay 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.