# File lib/ec2/right_ec2_spot_instances.rb, line 254 def create_spot_datafeed_subscription(bucket, prefix=nil) request_hash = { 'Bucket' => bucket } request_hash['Prefix'] = prefix unless prefix.blank? link = generate_request("CreateSpotDatafeedSubscription", request_hash) request_info(link, QEc2DescribeSpotDatafeedSubscriptionParser.new(:logger => @logger)) end