Heroku file upload problem

Question

I\'ve been having a problem uploading a CSV file to Heroku and processing it. It works fine in my local environment. Just do be clear, I don\'t need to save the file on Hero

Answer 1

Not entirely true, actually. It turns out that if you upload a file to Heroku, you can access it for the duration of the request via the Tempfile class. I was able to read the tempfile into a string and then process it as needed (it's a CSV):

@file = IO.read(params[:report][:file].path)

Works fine for text/csv files, but I guess if you want to do more than basic text manipulation you have to go with S3 as Joost suggests.