I'm using *Rails-api* with *mongoid*. I try to upload user avatar using *Carrierwave* from a *remote url*. I got the*remote url* form *omniauth-facebook* image params. The problem is the *avatar* field in *Databass* have nil value after save. This is my app on github https://github.com/adham90/pp -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/5d0eee57-fa44-4a34-b692-ee394733e2fa%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.