ShopifySession

shopify_session.rb

gem 'shopify_app'

ShopifyApp

def callback
  if auth_hash
    
  end
end

def login_shop
  reset_session_options
  set_ecommerce_api_session
end

def reset_session_options
  request.session_options[:renew] = true
  session.delete(:_csrf_token)
end

def set_ecommerce_api_session
  session_store =
    ShopifyAPI::Session.new(
      domain: shop_name,
      token: token,
      api_version: ShopifyApp.configuration.api_version
    )

  ShopifyAPI::Base.activate_session(session_store)
  session[:shopify] = ShopifyApp::SessionRepository.store(session_store)
  session[:shopify_domain] = shop_name
  session[:shop_domain] = shop_name
  session[:shopify_user] = associated_user
end

// few key methods in used. 
ShopifyApp::SessionRepository.store(session_store)
ShopifyApp.configuration

// session, request.