Disable Sinatra standard output

Question

For security reasons I don't wish to have Sinatra print every URL its requested in standard output, I've tried using set :logging, false as suggested in this answer using:

class SweetAppName< Sinatra::Base
    set :show_exceptions, false
    set :environment, :production
    set :logging, false

However when I run the app using rackup and thin, I still see the request logged to the terminal:

127.0.0.1 - - [26/May/2015:09:32:34 -0700] "GET /not-a-real-url HTTP/1.0" 404 - 0.0452

How can I turn these off?

If you are submitting sensitive data as part of the URL, you should know that HTTP packets can be intercepted. An attacker will then be able to read the URLs from the HTTP packets. You should probably use HTTPS, where the entire packet is encrypted, including the URL. — Patrick Oscity, May 27 '15 at 07:15
I am using HTTPS, however when NGINX passes the request upstream it does so as a HTTP request. — ecnepsnai, May 27 '15 at 15:12

score 10 · Accepted Answer · answered May 27 '15 at 01:34

If you start your app with rackup, Rack will add some middleware, including logging. You can prevent this by using the quiet option (-q or --quiet) to rackup, i.e. from the command line:

$ rackup -q

You can include this option in your config.ru if you want, so you don’t have to remember typing it every time you start your app. The first line that starts with #\ is parsed as options, so you can have a config.ru like this:

#\ --quiet

# other middleware etc...
run SweetAppName

If you use the classic Sinatra app style you will need to add the set :logging, false line, otherwise Sinatra will add its own logging. With the modular style (like you are using in the question) this setting defaults to false so you shouldn’t need it.

Disable Sinatra standard output

1 Answers1