Fog(Google Cloud Storage) file store throws an TypeError (hash key "Content-Type" is not a Symbol)

[tamatsu]

When I tryed to upload a file to Google Cloud Storage, the following error was thrown:

TypeError (hash key "Content-Type" is not a Symbol)

version: 2.2.0

Reproduction code:

$ rails -v
Rails 6.1.3
$ rails c
> uploader = MyUploader.new
> file = Rack::Test::UploadedFile.new(File.join('plain.txt'), 'text/plain')
> uploader.store!(file)
Sending upload start command to https://storage.googleapis.com/upload/storage/v1/b/...
...
Traceback (most recent call last):
        1: from (irb):3
TypeError (hash key "Content-Type" is not a Symbol)

plain.txt

plain.txt

app/uploaders/my_uploader.rb

class MyUploader < CarrierWave::Uploader::Base
  storage :fog

  def store_dir
    "uploads"
  end
end

config/initializers/carrirewave.rb

CarrierWave.configure do |config|
  config.fog_provider = 'fog/google'
  config.fog_credentials = {
      provider:               'Google',
      google_project:         'playground-263303',
      google_json_key_location: 'cred.json'
  }
  config.fog_directory = '20210223-bucket'
end

Gemfile

gem "carrierwave", '~> 2.2.0'
gem "fog-google"
...

Gemfile.lock

...
carrierwave (2.2.0)
...
fog-google (1.12.1)
...

Thanks!

[mshibuya]

Looks definitely related to #2503.
cc: @ZuevEvgenii

[mshibuya]

#2503 and fog/fog-google#513 appears to be incompatible...
As a workaround, downgrading fog-google to 1.12.0 will help. Could you try that?

[tamatsu]

It works! The file was uploaded successfully.
Thank you for your help.

Gemfile

...
gem "carrierwave", '~> 2.2.0'
gem "fog-google", '1.12.0'
...

Gemfile.lock

...
carrierwave (2.2.0)
...
fog-google (1.12.0)
...

$ rails -v
Rails 6.1.3
$ rails c
Running via Spring preloader in process 60328
Loading development environment (Rails 6.1.3)
> uploader = MyUploader.new
> file = Rack::Test::UploadedFile.new(File.join('plain.txt'), 'text/plain')
> uploader.store!(file)
Sending upload start command to https://storage.googleapis.com/upload/storage/...
...
=> [:store_versions!]

[ryanrombough]

I also ran into this. Reverting to 1.12.0 worked. Is there any roadmap for if it will be carrierwave or fog-google that will be fixing the incompatibility? Looks like it might be Carrierwave's problem? Do you know if they are aware of the issue?

[mshibuya]

The fix released in fog-google side, using fog-google >= 1.14.0 will solve this.