ruby

module KeysetPaginatable
  extend ActiveSupport::Concern

  class_methods do
    def keyset_page(cursor: nil, limit: 20, direction: :desc)
      limit = limit.to_i.clamp(1, 100)

Rails.application.config.middleware.insert_before(
  Rack::Runtime,
  Rack::Timeout,
  service_timeout: 15  # 15 seconds
)

require 'securerandom'
require 'digest'
require 'openssl'
require 'rack/utils'

class RememberToken < Sequel::Model

class LeaderboardCache
  TOP_KEY = "leaderboard:top".freeze
  STATS_KEY = "leaderboard:stats".freeze

  def top_players
    Rails.cache.fetch(TOP_KEY, expires_in: 5.minutes, race_condition_ttl: 15.seconds) do

class CreateWebhookEvents < ActiveRecord::Migration[7.1]
  def change
    create_table :webhook_events do |t|
      t.string :event_id, null: false
      t.string :source, null: false, default: "stripe"
      t.string :event_type, null: false

class CreateOutboxEvents < ActiveRecord::Migration[7.1]
  def change
    create_table :outbox_events do |t|
      t.string :event_type, null: false
      t.string :aggregate_type, null: false
      t.string :aggregate_id, null: false

module MyApp
  class Application < Rails::Application
    config.load_defaults 6.1

    # Enable response compression
    config.middleware.use Rack::Deflater

class SyncContactJob < ApplicationJob
  queue_as :external

  BACKOFF = ->(executions) do
    (2**executions) + rand(0.0..1.0) # exponential + jitter, in seconds
  end

class PopularPostsQuery
  def initialize(relation = Post.all)
    @relation = relation
  end

  def call(timeframe: 7.days, min_views: 100, limit: 20)

class User < ApplicationRecord
  has_one_attached :avatar do |attachable|
    attachable.variant :thumb,
      resize_to_limit: [256, 256],
      convert: :webp,
      saver: { quality: 80 }

module Authorizable
  extend ActiveSupport::Concern

  class NotAuthorized < StandardError; end

  included do

class TrendingPostsService
  CACHE_KEY = 'trending_posts:v1'.freeze
  CACHE_TTL = 15.minutes

  def self.call(limit: 10)
    Rails.cache.fetch(CACHE_KEY, expires_in: CACHE_TTL) do