rails AWS S3 delete file - ruby-on-rails

Question

I do uploads to amazon S3 with carrierwave that works fine.
But Now I want to add a delete function I tried this:
AWS::S3::S3Object.delete(#vid.video, 'bucket')
I got this error:
uninitialized constant MoviesController::AWS
The reason is clear .. But how do I set the AWS constant correctly and where?
config/initializers/carrierwave.rb
CarrierWave.configure do |config|
config.fog_credentials = {
:provider => 'AWS',
:aws_access_key_id => '----',
:aws_secret_access_key => '----',
:region => 'eu-central-1',
}
config.fog_use_ssl_for_aws = false
config.fog_directory = 'bucekt'
config.storage = :fog
end

Answer 1

You must first configure the AWS gem. Add this code to the config/initializers/aws.rb file.
Aws.config.update({
region: '<default-region>',
credentials: Aws::Credentials.new('<access-key-id>', '<secret-access-key')
})
You can also set the environment variables AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, and AWS_REGION on your server and the SDK will pick them up automatically.
Then, anywhere in your app or a controller action, you can call the S3 API like this:
def some_action
# You can simply call Aws::S3::Client.new
# if you are already configuring using the
# above methods or configure by passing
# parameters explicitly
s3_client = Aws::S3::Client.new(
credentials: Aws::Credentials.new('<aws_access_key_id>', '<aws_secret_key>'),
region: '<aws_region>'
)
# delete object by passing bucket and object key
s3_response = s3_client.delete_object({
bucket: '<bucket-name>', # required
key: '<object-key>', # required
})
end