Unable to Delete File from Amazon S3 Using Ruby Script

unable to delete file from amazon s3 using ruby script

The documentation tells that it should look like this:

s3 = Aws::S3.new
bucket = s3.buckets['some-bucket']
object = bucket.objects['38ac8226-fa72-4aee-8c3d-a34a1db77b91/some_image.jpg']
object.delete

Please note:

• the square brackets,
• that the object's key doesn't include the domain and
• instead of creating an instance of Aws::S3::Resource create an instance of AWS::S3

Rails aws-sdk cannot delete file on Amazon S3

Got it working. I was submitting the url rather than the key. The key is obtained from the url by slicing off the host bit:

Picturethings controller

def delete_picture_from_s3
  key = params[:picture_url].split('amazonaws.com/')[1]
  S3_BUCKET.object(key).delete
  return true
  rescue => e
    # Do nothing. Leave the now defunct file sitting in the bucket.
    return true
end

rails AWS S3 delete file

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

Delete object from s3 bucket Rails 5 aws-sdk

More than likely the issue that you are running into is with the permissions that are set on the s3 bucket and not your code. You either need to change the permissions on that bucket it self or you have to set up a policy that aws user that is trying trying to delete the file.

Rails Active Storage, delete file from S3 bucket

I don't know what was the problem but restarting my rails console fix the problem.

Fog Gem - Access Denied on deleting S3 file

From what I see, you are setting the bucket_name variable on fog gem to be 'bucket-name', either that or you have edited it to post here.
Your config/initializer/carrierwave.rb should look something like this

    CarrierWave.configure do |config|
      config.fog_credentials = {
        # Configuration for Amazon S3 should be made available through an Environment variable.
        # For local installations, export the env variable through the shell OR
        # if using Passenger, set an Apache environment variable.
        #
        # In Heroku, follow http://devcenter.heroku.com/articles/config-vars
        #
        # $ heroku config:add S3_KEY=your_s3_access_key S3_SECRET=your_s3_secret S3_REGION=eu-west-1 S3_ASSET_URL=http://assets.example.com/ S3_BUCKET_NAME=s3_bucket/folder

        # Configuration for Amazon S3
        :provider              => 'AWS',
        :aws_access_key_id     => ENV['S3_KEY'],
        :aws_secret_access_key => ENV['S3_SECRET'],
        :region                => ENV['S3_REGION']
       }

      # For testing, upload files to local `tmp` folder.
      if Rails.env.test? || Rails.env.cucumber?
        config.storage = :file
        config.enable_processing = false
        config.root = "#{Rails.root}/tmp"
      else
        config.storage = :fog
      end

      config.cache_dir = "#{Rails.root}/tmp/uploads"                  # To let CarrierWave work on heroku

      config.fog_directory    = ENV['S3_BUCKET_NAME']
      config.s3_access_policy = :public_read                          # Generate http:// urls. Defaults to :authenticated_read (https://)
      config.fog_host         = "#{ENV['S3_ASSET_URL']}/#{ENV['S3_BUCKET_NAME']}"
    end

You may be setting ENV['S3_BUCKET_NAME'] or ENV['S3_ASSET_URL'] variables wrong, or even setting it mannually, check those in your .env file

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