module Api
  class SignInsController < BaseController
    skip_before_action :authenticate!

    def create
      build_resource

      resource.save!
    end

    private

    def build_resource
      @sign_in = Api::SignIn.new(resource_params)
    end

    def resource
      @sign_in
    end

    def resource_params
      params.require(:sign_in).permit(:email, :password, :name, :device, :device_token)
    end
  end
end

module Api
  class SignInsController < BaseController
    skip_before_action :authenticate!

    private

    def build_resource
      @sign_in = Api::SignIn.new(resource_params)
    end

    def resource
      @sign_in
    end

    def resource_params
      params.require(:sign_in).permit(:email, :password, :name, :device, :device_token)
    end
  end
end

--- 
+++ 
@@ -1,6 +1,12 @@
 module Api
   class SignInsController < BaseController
     skip_before_action :authenticate!
+
+    def create
+      build_resource
+
+      resource.save!
+    end
 
     private
 
Fix api sign ins controller
