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ͦ ͏ ͩ R a c k ࡞ Ζ ͏ ɻ

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5PEBZ`T(PBM w 3BDLͱ͸Կ͔ཧղ͢Δ w 3BDLΞϓϦϛυϧ΢ΣΞΛ࡞ΕΔΑ͏ʹͳΔ

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"HFOEB 3BDLͱ͸ 3BDLΞϓϦΛ࡞ͬͯΈΑ͏ 3BDLϛυϧ΢ΣΞΛ࡞ͬͯΈΑ͏ (FNʹͯ͠ΈΑ͏ʢ͓·͚ʣ 6OJDPSOͰಈ͔ͯ͠ΈΑ͏ʢ͓·͚ʣ

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3BDLͱ͸

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3BDLͱ͸ 3VCZΛαϙʔτ͢Δ8FC "1 αʔόͱ 3VCZϑϨʔϜϫʔΫͱΛͭͳ͙ن໿ 1ZUIPOͷ84(*ΛݩʹఏҊ͞Εͨ

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3BDLͷ໾ׂ Passenger Unicorn Thin Mongrel Rails Sinatra Ramaze Merb Application Server Framework ΠϯλʔϑΣʔεͷ౷ҰʹΑΓɺ ϑϨʔϜϫʔΫʗAPαʔόؒͷ૊Έ߹ΘͤΛࣗ༝ʹ͢Δ

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3BDLΞϓϦΛ࡞ͬͯΈΑ͏

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! wDBMMͱ͍͏ϝιουΛ͍࣋ͬͯΔ͜ͱ wDBMMϝιουͷҾ਺ͱͯ͠8FCαʔό͔ΒͷϦΫΤετ Λड͚Δ͜ͱ wDBMMϝιου͸ҎԼͷཁૉΛؚΉϨεϙϯεΛฦ͢͜ͱ εςʔλείʔυ Ϩεϙϯεϔομʢ)BTIʣ ϨεϙϯεϘσΟʢ"SSBZʣ 3BDLΞϓϦέʔγϣϯ

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3BDLΞϓϦΛ࡞ͬͯΈΑ͏ class RackApp def call(env) [200, {'Content-Type' => 'text/html'}, ["Hello, Rack world!"]] end end run RackApp.new DPOpHSV ! $ rackup config.ru

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3BDLϛυϧ΢ΣΞΛ ࡞ͬͯΈΑ͏

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3BDLϛυϧ΢ΣΞ 3BDLʹରԠͨ͠ΞϓϦέʔγϣϯʹ ػೳΛ௥Ճ͢ΔͨΊͷϛυϧ΢ΣΞ ! w3BDLΞϓϦέʔγϣϯͷ࢓༷Λຬ͍ͨͯ͠Δ͜ͱ wOFXͷୈҰҾ਺ʹଞͷ3BDLΞϓϦέʔγϣϯΛऔΔ͜ͱ

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3BDLϛυϧ΢ΣΞΛ࡞ͬͯΈΑ͏ class UpcaseAll def initialize(app) @app = app end def call(env) code, headers, body = @app.call(env) body.each {|part| part.upcase! } [code, headers, body] end end class RackApp #... end use UpcaseAll run RackApp.new DPOpHSV

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3BDLϛυϧ΢ΣΞͷೖΕࢠߏ଄

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Α͘࢖͏3BDLϥΠϒϥϦ w3BDL3FRVFTU ϦΫΤετΛѻ͍΍ͯ͘͘͢͠ΕΔϥούʔ w3BDL3FTQPOTF ϨεϙϯεΛѻ͍΍ͯ͘͘͢͠ΕΔϥούʔ w3BDL63-.BQ ύεʹԠͯ͡ϦΫΤετΛৼΓ෼͚ͯ͘ΕΔΞϓϦέʔγϣϯ ! ‣ࢀߟɿIUUQSPVUFOFUX3BDL3FGFSFODF+BIUNM

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ʲԋशʳ ! ͜Ε·ͰֶΜͩ͜ͱΛ౿·͑ͯɺ ΦϦδφϧͷ3BDLϛυϧ΢ΣΞΛ࡞ͬͯΈΑ͏

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(FNʹͯ͠ΈΑ͏

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(FNͷ࡞Γํ require "my_first_gem/version" module MyFirstGem class UpcaseAll #... end end $ bundle gem my_first_gem (FNͷ਽ܗΛ࡞Δ ֓ཁΛHFNTQFDʹॻ͘ ϥΠϒϥϦΛॻ͘ (FNΛϏϧυ͢Δ $ rake build

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ʲԋशʳ ! ࣗ࡞ͨ͠(FNΛHFNJOBCPYʹΞοϓͯ͠ɺ ଞਓ͕࡞ͬͨ(FN΋Πϯετʔϧͯ͠ΈΑ͏

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6OJDPSOͰಈ͔ͯ͠ΈΑ͏

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6OJDPSOͷ࢖͍ํ worker_processes 2 listen 9292 stderr_path File.expand_path('unicorn.log', File.dirname(__FILE__)) stdout_path File.expand_path('unicorn.log', File.dirname(__FILE__)) pid File.expand_path('unicorn.pid', File.dirname(__FILE__)) $ echo “gem ‘unicorn’” >> Gemfile $ bundle install 6OJDPSOΛΠϯετʔϧ ઃఆϑΝΠϧʢVOJDPSODPOGʣΛ༻ҙ͢Δ 6OJDPSOΛىಈ͢Δ 6OJDPSOΛఀࢭ͢Δ $ kill -QUIT `cat unicorn.pid` $ unicorn -c unicorn.conf -D