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

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