Ruby

Capture HTTP/HTTPS Traffic from Ruby with Proxyman

1. New Automatic Solution (v4.7.0 or later) ✅

Proxyman v4.7.0 or later can capture HTTP/HTTPS traffic from Ruby with 1-click.

• 1-click solution: No need to manually set HTTP Proxy config or trust the self-signed certificate.

• Support many Ruby libraries: http, net/http, net/https, httparty, and faraday.

How to use:

1. Open Proxyman -> Setup Menu -> Automatic Setup

2. Click on "Open New Terminal"

3. Accept the Apple Script permission prompt if needed

4. The New Terminal app is launched -> You can start your Ruby Backend Server, or Run scripts => Proxyman automatically captures all traffic.

5. Done ✅

Capture Traffic from Ruby

2. Old Solution (Not Recommended)

1. Set HTTP Proxy to Ruby

Net::HTTP will automatically create a proxy from the http_proxy environment variable if it is present.

So you can use:

ENV['http_proxy'] = 'http://127.0.0.1:9090' # your http://address:port here

and Net::HTTP will use it for all requests by default.

Ref: https://stackoverflow.com/questions/15792999/how-to-set-a-proxy-in-rubys-net-http

2. Install Proxyman Certificate on Ruby

By default, Ruby on macOS might not trust Proxyman's self-signed certificate. As a result, you might encounter SSL Error if you try to intercept HTTPS traffic.

You can explicitly tell Ruby to use Proxyman Certificate by using SSL_CERT_FILE env.

$ env SSL_CERT_FILE=~/.proxyman/proxyman-ca.pem ruby my_script.rb