Module: RnStack::PerformanceHelper

Defined in:
app/helpers/rn_stack/performance_helper.rb

Instance Method Summary collapse

Instance Method Details

#optimized_script_tag(source, strategy: :async) ⇒ Object

Script loading strategy helper



15
16
17
18
19
20
21
22
23
24
 
# File 'app/helpers/rn_stack/performance_helper.rb', line 15

def optimized_script_tag(source, strategy: :async)
  case strategy
  when :async
    javascript_include_tag source, async: true
  when :defer
    javascript_include_tag source, defer: true
  else
    javascript_include_tag source
  end
end

#self_hosted_font_tag(font_name, options = {}) ⇒ Object

Font optimization helper



9
10
11
12
 
# File 'app/helpers/rn_stack/performance_helper.rb', line 9

def self_hosted_font_tag(font_name, options = {})
  # In Rails, fonts should be in app/assets/fonts
  tag.link(rel: "preload", href: asset_path("#{font_name}.woff2"), as: "font", type: "font/woff2", crossorigin: "anonymous")
end

#with_isr_cache(key, expires_in: 1.hour, &block) ⇒ Object

ISR-like fragment caching: revalidates content periodically



4
5
6
 
# File 'app/helpers/rn_stack/performance_helper.rb', line 4

def with_isr_cache(key, expires_in: 1.hour, &block)
  cache("isr/#{key}", expires_in: expires_in, &block)
end