ruby image base64 string upload to s3

file_string_io.rb

class CustomFileStringIO < StringIO
  def initialize(*args)
    super(*args[1..-1])
    @file_name = args[0]
  end

  def original_filename
    @file_name
  end
end

s3_upload_example.rb

image_base64 = '"data:image/png;base64,xxxxx'.split(',')
file_io = CustomFileStringIO.new(image_file_name, Base64.decode64(image_base64[1]))

obj = S3_BUCKET.object(file_io.original_filename)
obj.put({ body: file_io })

require 'aws-sdk-s3'

def upload_file
s3 = Aws::S3::Client.new(
access_key_id: ENV['AWS_ACCESS_KEY_ID'],
secret_access_key: ENV['AWS_SECRET_ACCESS_KEY'],
region: ENV['AWS_REGION']
)
service = Aws::S3::Resource.new(client: s3)

object_key = 'filename'
object = service.bucket(ENV['AWS_S3_BUCKET']).object(object_key)
object.put(body: 'file content')

s3.put_object_acl(bucket: ENV['AWS_S3_BUCKET'], key: object_key, acl: 'public-read')

object.public_url.to_s

end