Why might a method fail in rails?

Question

Ruby on Rails

I am using the gcm gem. I have a simple form, after confirmation, there is a redirect in the controller, there I send messages using gcm. The problem is: messages are simply not sent, BUT! when I stop the application with a byebug, copy and paste the same line from the application, press RET, then for some reason the messages come!

Answer 1

Better use https://github.com/rpush/rpush
My practice has shown that it is much better and holds the interface of several Apn services at once, etc.
Once I faced the same problem, switching to this gem helped.