Htcp is a command line utility to duplicate HTTP traffic. It can duplicate an HTTP request and send it to as many servers as you need. Filters can be apply to select which answer must be returned to the client.
This application is cross platform and works on Windows, OSX and Linux. The usage is simple:
# htcp start listening on port 8080 and duplicate
# all the incoming traffic to golang.org and example.com
$ htcp --listen localhost:8080 golang.org example.comHtcp is under heavy development and must not be use in production.
| Date | Change |
|---|---|
| 2016/08/26 | Complete library rewrite & update fcgi client. |
| 2016/10/22 | Add unit test and refactor. |
| 2016/11/04 | Concurrent requests and http.Client reuse. |
| 2016/11/12 | Add the -order flag to cmd/htcp |
Htcp is meant to be simple and production ready. This is not a proxy, all it does is send an exact copy of the incoming traffic to multiple servers, and copy back a response.
I use it on rest endpoint to duplicate the traffic to test servers.
Htcp can filter by :
command: return response from the first server in the command line callfirst-ko: return the first answer with an invalid status codefirst-ok: return the first answer with a valid status code
New filter can be added easily.
- add timeout flag
- add benchmark
- handle servers failure (for now it returns code 521)