fastly.rb

require 'net/http'

class Net::HTTP::Purge < Net::HTTPRequest
  METHOD = 'PURGE'.freeze
  REQUEST_HAS_BODY = false
  RESPONSE_HAS_BODY = true
end

class Fastly
  def self.purge(path, soft = false)
    return unless ENV['FASTLY_DOMAINS']
    ENV['FASTLY_DOMAINS'].split(",").each do |domain|
      url = "https://#{domain}/#{path}"
      headers = soft ? { 'Fastly-Soft-Purge' => 1 } : {}

      response = RestClient::Request.execute(method: :purge,
                                             url: url,
                                             timeout: 10,
                                             headers: headers)
      json = JSON.parse(response)
      Rails.logger.debug "Fastly purge url=#{url} status=#{json['status']} id=#{json['id']}"
    end
  end

  def self.purge_key(key, soft = false)
    headers = { 'Fastly-Key' => ENV['FASTLY_API_KEY'] }
    headers['Fastly-Soft-Purge'] = 1 if soft
    url = "https://api.fastly.com/service/#{ENV['FASTLY_SERVICE_ID']}/purge/#{key}"
    response = RestClient::Request.execute(method: :post,
                                           url: url,
                                           timeout: 10,
                                           headers: headers)
    json = JSON.parse(response)
    Rails.logger.debug "Fastly purge url=#{url} status=#{json['status']} id=#{json['id']}"
    json
  end
end