Building a new strategy for Omniauth, but Omniauth can't find it

Question

I'm new to Rails and to Omniauth, so sorry in advance for the dumb question.

I'm trying to do an Omniauth strategy for the Deezer website. http://www.deezer.com/en/developers/simpleapi/oauth

First, I set up a basic rails application to test the Facebook strategy. Here is my code in Github : https://github.com/geoffroymontel/omniauth-test

And it works fine. Good.

Then I added those files in my app lib directory

lib/omniauth-deezer.rb
lib/omniauth/deezer.rb
lib/omniauth/deezer/version.rb
lib/omniauth/deezer/strategies/deezer.rb

and added

provider :deezer, ENV['DEEZER_APP_ID'],
ENV['DEEZER_APP_SECRET'], :perms => 'basic_access,email'

in

config/initializers/omniauth.rb

But when I start the app with

rails s

I get the following error message

/home/geoffroy/.rvm/gems/ruby-1.9.2-p290@rails3tutorial2ndEd/gems/omniauth-1.0.2/lib/omniauth/builder.rb:33:in `rescue in provider': Could not find matching strategy for  :deezer. You may need to install an additional gem (such as omniauth-deezer). (LoadError) from /home/geoffroy/.rvm/gems/ruby-1.9.2-p290@rails3tutorial2ndEd/gems/omniauth-1.0.2/lib/omniauth/builder.rb:30:in `provider'

Thanks for your help

Best

Geoffroy

Answer 1

I added

require 'omniauth-deezer'

in initializers/omniauth.rb and it worked.

I don't really understand why I need it and Facebook doesn't.

Answer 2

In the Upgrading to 1.0 doc it is mentioned that Omniauth needs a gem for every provider now, so you'll have to move your provider to a gem eventually.

Answer 3

For future reference, if you want to add your own omniauth strategy, add this to your gemfile

gem 'omniauth-mystrategy', :path => '~/full-path-to-the-omniauth-folder/'

You´ll be using the local repository feauture of the gemfiles. In the official bundler page you´ll see how to use remote repos also.

http://gembundler.com/v1.3/gemfile.html