Ruby rails download file

Levi Levi 4, 1 1 gold badge 17 17 silver badges 15 15 bronze badges. This works. I tried this on an image. The image was not properly written to the file. As if it has been corrupted or something. Also could you guide me to do this same in a Rails application.

Can i use this in a Rails application? Yes, you can use it in a rails application. The file not being written properly is probably because I forgot to open the destination in write-binary mode. I'll edit that now. This reads the whole file in memory. The best way is IO. Show 3 more comments. Abram Clemens Helm Clemens Helm 3, 1 1 gold badge 19 19 silver badges 13 13 bronze badges.

And more efficient as the output is not stored as a string in memory. Though it's actually useful having both answers displayed, so people like me can see both, think about the differences and then choose this answer consciously for the right reasons : — Maxwell Evans.

I'm getting a security warning from Rubocop when using open. Viewed times. It is working fine on local rails server. You may have mistyped the address or the page may have moved. Any one please let me know what i am missing. Thanks regards, Update Here are the heroku logs T Saghir A. Khatri Saghir A. Khatri 3, 6 6 gold badges 41 41 silver badges 74 74 bronze badges. If you would post the logs it could be helpful — Andrey Deineko. Epehemeral file system, read-only file system, multiple slugs Let me know how in the comments below or on Twitter at philnash.

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Download, test drive, and tweak them yourself. Plain old Ruby The most popular way to download a file without any dependencies is to use the standard library open-uri. In the directory in which you opened IRB you will now find the image you downloaded. Problems with open-uri The thing is, using open-uri like this is not ideal. Notably, open-uri : leaves you vulnerable to remote code execution sometimes returns a Tempfile other times StringIO doesn't let you limit redirects or file size To solve all of this, Janko created the Down gem.

Improving downloads with the Down gem Let's download the same image using Down. Start by installing the gem:. Rafal Rafal 2, 1 1 gold badge 16 16 silver badges 13 13 bronze badges. Ok - Thanks :D Just got everything setup with Paperclip. Obviously change the link to be your file, and the right type. I recommend you read this article to get a better understanding.

Please help.. Show 11 more comments. Stephan Stephan 2, 3 3 gold badges 18 18 silver badges 24 24 bronze badges. Will this work if I have my website on heroku? How much data will I be able to upload? Skillachie Skillachie 2, 1 1 gold badge 24 24 silver badges 25 25 bronze badges. Sign up or log in Sign up using Google.