Heroku - how to write into “tmp” directory?

Question

I need to use the tmp folder on Heroku (Cedar) for writing some temporarily data, I am trying to do that this way:

open(\"#{Rails.root}/tmp/#{re         


        

Answer 1

Is /tmp included in your git repo? Removed in your .slugignore? The directory may just not exist out on Heroku.

Try tossing in a quick mkdir before the write:

Dir.mkdir(File.join(Rails.root, 'tmp'))

Or even in an initializer or something...