Proxy for Ruby HTTP traffic

Question

I have a ruby script, that posts data to a URL:

require 'httparty'

data = {}
data[:client_id]     = '123123'
data[:key]           = '123321'

url = "http://someserver.com/endpoint/"
response = HTTParty.post(url, :body => data)

Now i am using Charles for sniffing the HTTP traffic. This works great from the browser, but not from the terminal, where I run my script:

$ ruby MyScript.rb

How can I tell ruby or my Terminal.app to use the Charles proxy at http://localhost:88888

Update Another solution would be to see the request before it is being sent. So that I would not necessarily need the proxy.

@Timmah Even tough this might work, I tried this but I don't see any traffic in Charles when I do that. — Besi
– Besi, Commented Mar 6, 2014 at 22:02
so u tried export http_proxy=localhost:88888 && ruby MyScript.rb? — Timmah
– Timmah, Commented Mar 6, 2014 at 22:03
Call HTTParty::Basement.debug_output before your request and HTTParty will print debug messages, including raw request and response — Stefan
– Stefan, Commented Mar 6, 2014 at 23:09
The port 88888 is wrong. they can't be more than 65535, maybe is 8888. Also export http_proxy='http://localhost:8888' is the right syntax — v-a
– v-a, Commented Mar 7, 2014 at 23:00

mofoe · Accepted Answer · 2014-05-02 18:32:52Z

2

Setting the proxy as timmah suggested should work.

Anyway 88888 is not a valid port! I think you want to use 8888 (Charles proxy default port).

So the right commands would be:

export http_proxy=localhost:8888
ruby MyScript.rb

If your script was to use https:// you would also/instead need to specify a HTTPS proxy like so:

export https_proxy=localhost:8888

answered May 2, 2014 at 18:32

mofoe

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1 Comment

Victor Ude Over a year ago

Connect to localhost.charlesproxy.com instead. That's the official way to do it. charlesproxy.com/documentation/faqs/…

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