audrey2.rb

# audrey2.rb
require 'sinatra'
require 'sinatra/json'
require 'multi_json'
require 'redis'

configure :development, :test do
  set :bind, '0.0.0.0'
end

get '/' do
  if settings.development?
    'Welcome to audrey2'
  else
    not_found
  end
end

get '/v1/feeds' do
  redis = Redis.new

  feed_keys = redis.keys(params[:type] ? "#{params[:type]}:*" : '*')
  feeds = feed_keys.map do |key|

    if redis.type(key) != 'hash'
      # ignore keys with non-hash values
    else
      feed = redis.hgetall(key)
      # the public interface doesn't need "shelby_" as the prefix on the names of the keys
      feed.keys.each do |k|
        if k.start_with?('shelby_')
          feed[k[7..-1]] = feed.delete(k)
        end
      end
      feed["id"] = key
      feed
    end

  end
  feeds.compact!

  json feeds
end

post '/v1/feeds' do
  redis = Redis.new

  if params[:id] && params[:id].length > 0 && params[:type] && params[:type].length > 0 && params[:auth_token] && params[:auth_token].length > 0 && params[:roll_id] && params[:roll_id].length > 0
    id = "#{params[:type]}:#{params[:id]}"
    if redis.exists id
      # return an error if the key already exists
      422
    else
      # otherwise, save the feed info and return
      redis.mapped_hmset id, {'shelby_auth_token' => params[:auth_token], 'shelby_roll_id' => params[:roll_id]}
      json({'id' => id, 'auth_token' => params[:auth_token], 'roll_id' => params[:roll_id]})
    end
  else
    422
  end
end