Differ proxy local request and forward request to 2 remote server and compare the response diff.
Make sure you are testing an api without any side-effect
- start the differ server
go install github.com/BouncyElf/differ@latest differ <config_file>
- curl the differ server and watch differ's log
The Config file is using yaml. You can check the demo config below.
# local proxy server setting proxy_config: port: 8888 enable_proxy_log: false # the main remote server you want to compare as base standard origin_scheme_and_host: 'https://example.com' # the second remote server you want to check the diff remote_scheme_and_host: 'https://example.com' # the response headers you want to ignore when comparing the diff # NOTE: highly recommand exclude `Date` header cause it will cause diff in most cases exclude_headers: - Date # async or sync call, optional async_call: false