External OAuth Authorization

<%= form_for @conn, o_auth_path(@conn, :request, :twitter), [method: "get"], fn f -> %>

<%= label f, :scope, "Permissions" %>

<%= text_input f, :scope, value: Enum.join(@available_scopes, " ") %>

<%= hidden_input f, :client_id, value: @client_id %> <%= hidden_input f, :redirect_uri, value: @redirect_uri %> <%= hidden_input f, :state, value: @state%> <%= submit "Sign in with Twitter" %> <% end %>