What's the best way to find a OmniAuth strategy by :name?

[aguynamedben]

I want to dynamically look up a specific OmniAuth strategy by its :name. For example, the Google strategy has the name of 'google_oauth2' (code).

OmniAuth.strategies is a list of classes:

[
    [ 0] OmniAuth::Strategies::OAuth2 < Object,
    [ 1] OmniAuth::Strategies::Asana < OmniAuth::Strategies::OAuth2,
    [ 2] OmniAuth::Strategies::Bitbucket < OmniAuth::Strategies::OAuth2,
...

It doesn't seem there's a class property for :name, so to find a strategy by name I have to create instances:

strategy_klass = OmniAuth.strategies.find do |klass|
  instance = klass.new(nil)
  instance.name == 'google_oauth2'
end
# strategy_klass is now OmniAuth::Strategies::GoogleOauth2 < OmniAuth::Strategies::OAuth2

Is there a more recommended way to find a strategy by :name? I looked through the docs and code and didn't see one.

Thanks for the time you put into OmniAuth, it's amazing. 🙏

[aguynamedben]

I found this https://github.com/omniauth/omniauth/blob/master/lib/omniauth/builder.rb#L52

middleware = OmniAuth::Strategies.const_get(OmniAuth::Utils.camelize('google_oauth2').to_s)
# returns OmniAuth::Strategies::GoogleOauth2

I guess now I want to automatically create an instance of the provider with the configuration given in my Rails config/initializers/omniauth.rb

  provider :google_oauth2, ENV["GOOGLE_OAUTH_CLIENT_ID"], ENV["GOOGLE_OAUTH_CLIENT_SECRET"],
           scope: "(...scopes...)"

Are there any ways to get the pre-configured instance of a strategy?

[kreintjes]

Are there any ways to get the pre-configured instance of a strategy?

Same question over here. @aguynamedben did you find a solution for this?

[aguynamedben]

@kreintjes I don't recall, too much time passed!