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2. O QUE É?
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3. UMA ESPECIFICAÇÃO PARA
COMUNICAÇÃO ENTRE
APLICAÇÕES RUBY E
SERVIDORES WEB
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4. Request
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WebServer
Rack App
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5. API RACK APP
Qualquer objeto que responde ao metodo call e receba como
parâmetro um objeto com os dados da requisição
Retorna um array com 3 elementos
[status, headers, response]
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6. API RACK APP
[status, headers, response]
to_i
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hash string
each
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7. EXEMPLO
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8. proc {|env|
[200,
{"content-Type": "text/html"},
["Olá frevoonrails"]]
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9. RACK MIDDLEWARES
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10. Request
Middleware
Middleware
Rack App
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11. RAILS ON RACK
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12. RAKE MIDDLEWARE
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13. ADICIONANDO UM
RACK MIDDLEWARE AO
RAILS
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14. Crie seu arquivo “rack.rb” e adicione na pasta lib ou initializers
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15. Adicione seu rack application application.rb
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16. Verifique com “rake middleware”
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17. USOS NA VIDA REAL
Contador de acessos
Bloquear acesso
Devise(Warden)
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18. REFERÊNCIAS
http://guides.rubyonrails.org/rails_on_rack.html
http://rack.github.io/
https://www.youtube.com/watch?v=TslkdT3PfKc&
https://github.com/hassox/warden
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19. OBRIGADO!!
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20. OPS MAIS UMA COISA!!
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21. Monday, February 24, 14
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