Open Source Go HTTP Servers

master is the active development branch and contains v2 code, for the stable v1 release (though it was once called v2.0), please refer to v1.0 branch. goflyway v2 is a special tool to forward local ports to a remote server securely, just like ssh -L. goflyway uses pure HTTP POST requests to relay TCP connections. There is no CONNECT involved nor needed because goflyway is designed mainly for those people who are behind a CONNECT-less HTTP proxy or want to accelerate connections through static CDNs. However pure HTTP requesting is definitely a waste of bandwidth if you already have a better network environment, so use -w to turn on WebSocket relay, or -K to turn on KCP relay if possible. In HTTP mode when the server received some data it can't just send them to the client directly because HTTP is not bi-directional, instead, the server must wait until the client requests them, which means these data will be stored in memory for some time.

Hoverfly is a lightweight, open source API simulation tool. Using Hoverfly, you can create realistic simulations of the APIs your application depends on. Replace unreliable test systems and restrictive API sandboxes with high-performance simulations in seconds. Run on MacOS, Windows or Linux, or use native Java or Python language bindings to get started quickly. Simulate API latency or failure when required by writing custom scripts in the language of your choice.

Hetty is an HTTP toolkit for security research. It aims to become an open-source alternative to commercial software like Burp Suite Pro, with powerful features tailored to the needs of the infosec and bug bounty communities. Machine-in-the-middle (MITM) HTTP proxy, with logs and advanced search. HTTP client for manually creating/editing requests, and replay proxied requests. Intercept requests and responses for manual review (edit, send/receive, cancel) Scope support, to help keep work organized. Easy-to-use web-based admin interface. Project-based database storage, to help keep work organized.

go-mitmproxy is a Golang implementation of mitmproxy that supports man-in-the-middle attacks and parsing, monitoring, and tampering with HTTP/HTTPS traffic. Parses HTTP/HTTPS traffic and displays traffic details via a web interface. Supports a plugin mechanism for easily extending functionality. Various event hooks can be found in the examples directory. HTTPS certificate handling is compatible with mitmproxy and stored in the ~/.mitmproxy folder. If the root certificate is already trusted from the previous use of mitmproxy, go-mitmproxy can use it directly. Map Remote and Map Local support.