OmniAuth and Rails 3.1

Hi guys,
I've been struggling with OmniAuth for Twitter for a past few days and
I can't get it to work with Rails 3.1
I'm not sure if this is a Twitter problem, or an OmniAuth problem.

I create the application on twitter, the steps vary a bit from the
Railscast showing it, but that's because of a Twitter UI change,
nothing big.
The thing is I get my app registered on Twitter, I get my
consumer_secret and my consumer_key, then I setup my omniauth
initializer with:

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :twitter, '82I2sVYTqpxB9Pblahblahblah',

Then, I restart my server, browse /auth/twitter and I get an
OAuth::Unauthorized error. This is the server log:
Started GET "/auth/twitter" for at 2011-09-22 20:30:33 -0300

OAuth::Unauthorized (401 Unauthorized):

Rendered /home/kandalf/.rvm/gems/ruby-1.9.3-preview1/gems/actionpack-3.1.0/lib/action_dispatch/middleware/templates/rescues/_trace.erb
Rendered /home/kandalf/.rvm/gems/ruby-1.9.3-preview1/gems/actionpack-3.1.0/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb
Rendered /home/kandalf/.rvm/gems/ruby-1.9.3-preview1/gems/actionpack-3.1.0/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb
within rescues/layout (25.3ms)

Any help would be very much appreciated.

Thanks a lot in advance.


Take a look in the omni populus gem:

Best Regards,


I've just tried it and had the same result.
I wonder if twitter might have changed something on their side for
authenticating apps or if is omniauth on it's transition to 1.0.

I remember having had some trouble as well.

Make sure that you use the following in your gem files:

devise: ~=1.4.2

ominauth: =0.2.5 (not 0.2.6 for some reason because that has a dependency conflict with another lib)

In your production.rb do something like this at the top:

require ‘pg’

require ‘net/http’

require ‘openssl’


This is a bit of a hack but was the only way for me to get this to work in my configuration (after spending half a day investigating)

Hi Martin,
That didn't work for me.
Anywho, it seems to be a twitter issue, because I'm being able to
authenticate with GitHub.
It looks like a nice debugging case for OmniAuth, but I'm not sure if
it worth it, since has been announced big architectural changes for
version 1.0.
Maybe this is fixed there, but I don't know how long version 1.0 will take.
Does anyone knows about it?

Thanks a lot in advance.