Cloudinary direct upload bypassing rails app

[jlerpscher]

Hi,

I am trying to upload directly to Cloudinary, bypassing my rails app. I am working with Carrierwave and a Picture Uploader .

class PictureUploader < CarrierWave::Uploader::Base
  include Cloudinary::CarrierWave

  eager
  make_private

  version :tiny do
    resize_to_fill(100, 100)
  end

  version :full do
    cloudinary_transformation transformation: [
      { width: 1500, height: 1200, crop: :limit, quality: 80, flags: 'progressive' }
    ]
  end

= cl_form_tag my_callback_url, form: { class: 'fileupload' }, type: :private do
  = file_field_tag :file
  = submit_tag 'Upload'

Until now, everything is fine. But in my controller, I am unable to save the picture path unless doing the following:

@car = current_user.cars.build
path = "#{params[:resource_type]}/#{params[:type]}/v#{params[:version]}/#{params[:public_id]}"
path += ".#{params[:format]}" if params[:format].present?
path += "##{params[:signature]}"
@car.picture = path
# here path eq "image/private/v14030428xxx/lez0juhg5d5owvnsxxx.jpg#xxxxxx729ef01301xxx2e3171d316e0805c2xxx"
@car.save!

I guess it's not the cleanest way to do that.

I have tried to build directly with params but it did not save.
I also tried with cloudinary_url but it also failed. The result looks like:

"http://res.cloudinary.com/hd0w8otcz/image/private/v140304xxxx/lez0juhg5d5owxxxxxxx.jpg"

The params are:

{"bytes"=>"73526",
 "created_at"=>"2014-06-17T22:07:23Z",
 "etag"=>"43e4702e787fc96b2920a939efcaxxxx",
 "format"=>"jpg",
 "height"=>"606",
 "public_id"=>"lez0juhg5d5owvnszljo",
 "resource_type"=>"image",
 "signature"=>"xxxxxx729ef01301xxx2e3171d316e0805c2xxx",
 "type"=>"private",
 "version"=>"1403042843",
 "width"=>"808"}

So, what is the best way to upload to cloudinary bypassing my rails app?

[taragano]

When using Direct upload with CarrierWave, the library automatically takes the image's details and stores it as the identifier. You can have a look at the Sample project which demonstrates both server-side and client-side uploads, including CarrierWave integration.
https://github.com/cloudinary/cloudinary_gem/tree/master/samples/photo_album

[jlerpscher]

Thank you for your answer.

The solution provided in the sample app require javascript. I am looking for a solution without any javascript.

[taragano]

If you want to convert an upload response to something CarrierWave will be willing to accept, you can use:

Cloudinary::Utils.signed_preloaded_image(params)

[jlerpscher]

Hi,

Sorry, back from holidays.

Cloudinary::Utils.signed_preloaded_image(params)

doesn't seems handle private upload, I need something like:

"image/private/v1404760155/aaar1lttbgujqhdaaa.jpg#aaaaaab0b57be13297c6bb0a790e309"

but I get something like that:

"image/upload/v1404760287/cwuqrownwmqxl3pay4de.jpg#8cf120c91bb36a8e8a136170b6a8e28431bcdc18"

"#{result["resource_type"]}/upload/v#{result["version"]}/#{[result["public_id"], result["format"]].reject(&:blank?).join(".")}##{result["signature"]}"

params type it is not used in the function. Am I missing something?

[jlerpscher]

works great! Thank you.