Rails と Rack と HTTP と通信の話 / Rails Rack HTTP, communication

3BJMTͱ3BDLͱ)551ͱ௨৴ͷ࿩ ͳΜͱͳ͘ಈ͍ͨɺ͔ΒҰา౿ΈࠐΉΤϯδχΞϦϯά

ࣗݾ঺հ w ੁٶ༎հ:VTVLF4VHBNJZB!%/11 w 1SPHBUFͰϓϩάϥϚʔ΍ͬͯ·͢ɻ w 3VCZͱCBTIεΫϦϓτΛ࢖ͬͯαʔόʔαΠυํ໘ͷ࢓ࣄΛ΍ͬͯΔ ͜ͱ͕ଟ͍Ͱ͢ɻ w લ৬Ͱ͸J04ΞϓϦΛॻ͍ͯ·ͨ͠ɻ4XJGU͸࠷ߴɻ

8FCαʔϏε࡞ͬͯ·͔͢ʁ

8FCΞϓϦέʔγϣϯ ϑϨʔϜϫʔΫ࢖ͬͯ·͔͢ʁ

8FC"QQMJDBUJPO'SBNFXPSLʁ

8FC"QQMJDBUJPO'SBNFXPSLʁ 3BJMT

8FC"QQMJDBUJPO'SBNFXPSLʁ 3BJMT 4JOBUSB

8FC"QQMJDBUJPO'SBNFXPSLʁ 3BJMT 4JOBUSB %KBOHP

8FC"QQMJDBUJPO'SBNFXPSLʁ 3BJMT 4JOBUSB %KBOHP $BLF1)1

8FC"QQMJDBUJPO'SBNFXPSLʁ 3BJMT 4JOBUSB %KBOHP $BLF1)1 4ZNGPOZ

8FC"QQMJDBUJPO'SBNFXPSLʁ 3BJMT 4JOBUSB %KBOHP $BLF1)1 4ZNGPOZ -BSBWFM

8FC"QQMJDBUJPO'SBNFXPSLʁ 3BJMT 4JOBUSB %KBOHP $BLF1)1 4ZNGPOZ -BSBWFM FYQSFTT

8FC"QQMJDBUJPO'SBNFXPSLʁ 3BJMT 4JOBUSB %KBOHP $BLF1)1 4ZNGPOZ -BSBWFM FYQSFTT HJO

8FC"QQMJDBUJPO'SBNFXPSLʁ 3BJMT 4JOBUSB %KBOHP $BLF1)1 4ZNGPOZ -BSBWFM FYQSFTT HJO 1FSGFDU

,JUVSB

,JUVSB 7BQPS

,JUVSB 7BQPS 4QSJOH

ͦ΋ͦ΋8FCαʔϏεͱ͸ʁ 8FCΞϓϦέʔγϣϯͱ͸ʁ

"ϢʔβʔʹԿ͔ͷαʔϏεΛ ఏڙ͢ΔΞϓϦέʔγϣϯɻ

αʔϏεͱ͸ʜʁ

αʔϏεΛఏڙ͢Δίϯϐϡʔλ͕͍Δɻ

αʔϏεΛఏڙ͢Δίϯϐϡʔλ͕͍Δɻ ʢେମαʔόʔͱݺ͹Ε·͢

αʔϏεΛఏڙ͢Δίϯϐϡʔλ͕͍Δɻ ʢେମαʔόʔͱݺ͹Ε·͢ ˣ

αʔϏεΛఏڙ͢Δίϯϐϡʔλ͕͍Δɻ ʢେମαʔόʔͱݺ͹Ε·͢ ˣ αʔϏεΛड͚Δίϯϐϡʔλ͕͍Δɻ

αʔϏεΛఏڙ͢Δίϯϐϡʔλ͕͍Δɻ ʢେମαʔόʔͱݺ͹Ε·͢ ˣ αʔϏεΛड͚Δίϯϐϡʔλ͕͍Δɻ ʢେମΫϥΠΞϯτͱݺ͹Ε·͢ʣ

αʔϏεΛఏڙ͢Δίϯϐϡʔλ͕͍Δɻ ʢେମαʔόʔͱݺ͹Ε·͢ ˣ αʔϏεΛड͚Δίϯϐϡʔλ͕͍Δɻ ʢେମΫϥΠΞϯτͱݺ͹Ε·͢ʣ ˣ

αʔϏεΛఏڙ͢Δίϯϐϡʔλ͕͍Δɻ ʢେମαʔόʔͱݺ͹Ε·͢ ˣ αʔϏεΛड͚Δίϯϐϡʔλ͕͍Δɻ ʢେମΫϥΠΞϯτͱݺ͹Ε·͢ʣ ˣ αʔϏε͸৘ใͷ΍ΓऔΓͱ͍͏ܗͰ࣮ݱ͞ΕΔɻ

αʔϏεΛఏڙ͢Δίϯϐϡʔλ͕͍Δɻ ʢେମαʔόʔͱݺ͹Ε·͢ ˣ αʔϏεΛड͚Δίϯϐϡʔλ͕͍Δɻ ʢେମΫϥΠΞϯτͱݺ͹Ε·͢ʣ ˣ αʔϏε͸৘ใͷ΍ΓऔΓͱ͍͏ܗͰ࣮ݱ͞ΕΔɻ ʢ࠷ऴతʹਓ͕ؒ৘ใΛղऍ͢Δ͜ͱʹΑͬͯՁ஋͕ੜ·Ε·͢ʣ

৘ใͷ΍ΓͱΓʁ

௨৴ͩʂ

௨৴ͷ࿩Λ͠·͢ɻ

௨৴ͱ͸

৘ใΛ఻ୡ͢Δखஈͷ͜ͱ

৘ใΛ఻ୡ͢Δखஈͷ͜ͱ w ձ࿩

৘ใΛ఻ୡ͢Δखஈͷ͜ͱ w ձ࿩ w खࢴ

৘ใΛ఻ୡ͢Δखஈͷ͜ͱ w ձ࿩ w खࢴ w ࿛Ԏ

࿛Ԏ͸͍͢͝ ెาʹൺ΂ͯѹ౗తͳεϐʔυͰԕ͘ʹ৘ใΛ఻͑ΒΕΔɻ ͔ܽ͠͠఺΋͋Γɺ఻ୡͰ͖Δ৘ใྔ͕ͱͯ΋গͳ͍ɻ

ͳΜͱ͔޻෉ͯ͠࿛Ԏͷར఺Λ্ख͍ ۩߹ʹڗडͨ͘͠ͳ͍Ͱ͔͢ʁ

ࣄલʹ͍͔ͭ͘ͷऔΓܾΊΛ ͓͚ͯ͠͹ྑͦ͞͏Ͱ͢Ͷɻ

ݱ୅ͷΠϯλʔωοτʹ΋ ಉ͜͡ͱ͕ݴ͑·͢ɻ

༷ʑͳ෺ཧݱ৅Λ͏·͘ར༻ͯ͠ɺ ͦΕʹਓ͕ؒҙຯ߹͍Λ࣋ͨͤͯɺ ͳΜͱ͔ศརʹ࢖͍ͬͯ·͢ɻ

04*ࢀরϞσϧɾ5$1*1Ϟσϧ IUUQTKBQBO[EOFUDPNLFZXPSE04*ࢀরϞσϧ

)551ͷ࿩

ͳΜͰ)551ͷ࿩ʹͳΔͷʁ

ී௨ͷ8FCΞϓϦέʔγϣϯ͸ɺ ৘ใΛେମશ෦)551ͷ্ʹ ৐ͤͯ௨৴͍ͯ͠Δ͔ΒͰ͢ɻ

)551Λཧղ͢Δ͜ͱ͕8FCΞϓϦ έʔγϣϯΛཧղ͢ΔҰͭͷಓͰ͢ɻ ΋ͪΖΜଞʹ΋୔ࢁͷಓ͕͋Γ·͢ɻ

)551ͱ͸

)551ͱ͸ )ZQFSUFYU5SBOTGFS1SPUPDPM

w )ZQFSUFYUˠཁ͢Δʹਓ͕ؒಡΊΔจࣈɻςΩετɻ

w )ZQFSUFYUˠཁ͢Δʹਓ͕ؒಡΊΔจࣈɻςΩετɻ w 5SBOTGFSˠӡͿɻૹΔɻҠస͢Δɻͦ͏͍͏ײ͡ɻ

w )ZQFSUFYUˠཁ͢Δʹਓ͕ؒಡΊΔจࣈɻςΩετɻ w 5SBOTGFSˠӡͿɻૹΔɻҠస͢Δɻͦ͏͍͏ײ͡ɻ w 1SPUPDPMˠن໿ͱ͔ن֨ͱ͔໿ଋࣄͱ͔ͦ͏͍͏֓೦ɻ

)ZQFSUFYU ͳΜͱʮਓ͕ؒಡΊΔʯͱ͍͏ඇৗʹศརͳಛੑ͕͋Γ·͢ɻ

D63-ίϚϯυʹΑΔ࣮ྫ

$ curl http://example.com

$ curl http://example.com <!doctype html> <html> <head> <title>Example Domain</title> [
... தུ ... ] </head> <body> <div> <h1>Example Domain</h1> <p>This domain is for use in illustrative examples in documents. You may use this domain in literature without prior coordination or asking for permission.</p> <p><a href="https://www.iana.org/domains/example">More information...</a></p> </div> </body> </html>

)5.- )ZQFSUFYU.BSLVQ-BOHVBHF

͹ͬͪΓಡΊ·͢Ͷɻ

ࣄલʹ͍͔ͭ͘ͷऔΓܾΊΛ͍ͯ͠Δͱͷ͜ͱ͚ͩͬͨͲɺ ͦͷܾ·Γࣄ͸୭͕ܾΊ͍ͯΔͷʁ

3'$ͱ͸ 3FRVFTUGPS$PNNFOUT ΠϯλʔωοτͰ༻͍ΒΕΔ͞·͟·ͳٕज़ͷඪ४Խ΍ӡ༻ʹؔ͢Δࣄ߲ͳ Ͳ෯޿͍৘ใڞ༗Λߦ͏ͨΊʹެ։͞ΕΔจॻγϦʔζͰ͢ɻ IUUQTXXXOJDBEKQKBOFXTMFUUFS/PIUNM

3'$ͱ͸ 3FRVFTUGPS$PNNFOUT 3'$͸ɺ೥͝ΖɺεςΟʔϒɾΫϩοΧʔ͕ߟҊͨ͠ͱݴΘΕ͓ͯΓɺ ͸͡Ίͷ3'$͸೥݄೔ͷ೔෇ͱͳ͍ͬͯΔ IUUQTKBXJLJQFEJBPSHXJLJ3FRVFTU@GPS@$PNNFOUT

)551 ೥

)551 ೥݄ 3'$IUUQTUPPMTJFUGPSHIUNMSGD

)551 ೥݄ 3'$IUUQTUPPMTJFUGPSHIUNMSGD 3'$IUUQTUPPMTJFUGPSHIUNMSGD

)551΋͋Γ·͢ɻ ೥݄͘Β͍ͷ࿩Ͱ͕͢ɺ ͜ͷ৔Ͱ͸ׂѪ͠·͢ɻ

8FCۀք͸มԽ͕ૣ͍ʁ

)551͸গͳ͘ͱ΋೥Ҏ্ɺ ͦͯ͠ࠓޙ΋࢖ΘΕଓ͚Δ ٕज़ͷجૅͱݴ͑·͢ɻ

ٕज़ͷࠜװΛߏ੒͍ͯ͠Δ΋ͷ Λ஌Δ͜ͱ͸େࣄͰ͢Ͷʁ

3'$ʹ͸ຊ࣭ͷશ͕ͯ͋Γ·͢ɻ

3'$ʹ͸ຊ࣭ͷશ͕ͯ͋Γ·͢ɻ ຊ౰͔ͳʜ

)551ͷ࢓༷ͷ࿩

ϦΫΤετͱϨεϙϯε

ϔομͱϘσΟ

wϦΫΤετϔομ wϦΫΤετϘσΟ wϨεϙϯεϔομ wϨεϙϯεϘσΟ

$ curl --verbose http://example.com

$ curl --verbose http://example.com * Trying 93.184.216.34... * TCP_NODELAY set
* Connected to example.com (93.184.216.34) port 80 (#0)

* Connected to example.com (93.184.216.34) port 80 (#0) > GET / HTTP/1.1 > Host: example.com > User-Agent: curl/7.64.1 > Accept: */* > ϦΫΤετϔομ ۭߦ

$ curl --verbose http://example.com [...] < HTTP/1.1 200 OK <
Cache-Control: max-age=604800 < Content-Type: text/html; charset=UTF-8 < Date: Thu, 21 Nov 2019 10:07:23 GMT < Etag: "3147526947+gzip+ident" < Expires: Thu, 28 Nov 2019 10:07:23 GMT < Last-Modified: Thu, 17 Oct 2019 07:18:26 GMT < Server: ECS (sjc/4E68) < Vary: Accept-Encoding < X-Cache: HIT < Content-Length: 1256 < Ϩεϙϯεϔομ ۭߦ

$ curl --verbose http://example.com <!doctype html> <html> <head> <title>Example Domain</title>
[...] </head> <body> <div> <h1>Example Domain</h1> <p>This domain is for use in illustrative examples in documents. You may use this domain in literature without prior coordination or asking for permission.</p> <p><a href="https://www.iana.org/domains/example">More information...</a></p> </div> </body> </html> ϨεϙϯεϘσΟ

$ curl --verbose http://example.com <!doctype html> <html> <head> <title>Example Domain</title>
[...] </head> <body> <div> <h1>Example Domain</h1> <p>This domain is for use in illustrative examples in documents. You may use this domain in literature without prior coordination or asking for permission.</p> <p><a href="https://www.iana.org/domains/example">More information...</a></p> </div> </body> </html> * Connection #0 to host example.com left intact * Closing connection 0

׬શʹཧղͨ͠ɻ

׬શʹཧղͨ͠ɻ ຊ౰͔ͳʜ

ϝιουͷ࿩ɻ

GET POST PUT DELETE HEAD OPTIONS ʢଞʹ΋͋ΔΑʣ

* Connected to example.com (93.184.216.34) port 80 (#0) > GET / HTTP/1.1 > Host: example.com > User-Agent: curl/7.64.1 > Accept: */* > ϦΫΤετϔομ

* Connected to example.com (93.184.216.34) port 80 (#0) > GET / HTTP/1.1 > Host: example.com > User-Agent: curl/7.64.1 > Accept: */* > ͜Ε

ҰൠతʹɺΫϥΠΞϯτ͔Βࢦఆ͞ΕͨϝιουʹΑͬͯ αʔόʔͷڍಈΛద੾ʹม͑Δɺͱ͍͏͜ͱΛ͠·͢ɻ 1045͕ඈΜͰ͖ͨΒɺΫϥΠΞϯτ͸͜͏͍͏͜ͱΛ๬ΜͰ͍ΔͩΖ͏ɺ αʔόʔ͸͜͏͍͏ڍಈΛ͢ΔͩΖ͏ɺͱ͍ͬͨڞ௨ೝ͕ࣝ͋Δ͜ͱͱࢥ͍·͢ɻ

εςʔλείʔυͷ࿩

w ൪୆ˠ໾ʹཱͪͦ͏ͳ৘ใΛฦ͢Αɻʢ࣮ࡍʹ࢖͏͜ͱ͸΄΅ແ͍ʣ

w ൪୆ˠ໾ʹཱͪͦ͏ͳ৘ใΛฦ͢Αɻʢ࣮ࡍʹ࢖͏͜ͱ͸΄΅ແ͍ʣ w ൪୆ˠ੒ޭͨ͠Αɻ

w ൪୆ˠ໾ʹཱͪͦ͏ͳ৘ใΛฦ͢Αɻʢ࣮ࡍʹ࢖͏͜ͱ͸΄΅ແ͍ʣ w ൪୆ˠ੒ޭͨ͠Αɻ w ൪୆ˠͲ͔͜ʹҠಈͨ͠ΑɻҠಈઌΛࢀরͯ͠Ͷɻ

w ൪୆ˠ໾ʹཱͪͦ͏ͳ৘ใΛฦ͢Αɻʢ࣮ࡍʹ࢖͏͜ͱ͸΄΅ແ͍ʣ w ൪୆ˠ੒ޭͨ͠Αɻ w ൪୆ˠͲ͔͜ʹҠಈͨ͠ΑɻҠಈઌΛࢀরͯ͠Ͷɻ w ൪୆ˠΫϥΠΞϯτʢͦͬͪଆʣʹΤϥʔ͕͋ΔΑɻ௚ͯ͠Ͷɻ

w ൪୆ˠ໾ʹཱͪͦ͏ͳ৘ใΛฦ͢Αɻʢ࣮ࡍʹ࢖͏͜ͱ͸΄΅ແ͍ʣ w ൪୆ˠ੒ޭͨ͠Αɻ w ൪୆ˠͲ͔͜ʹҠಈͨ͠ΑɻҠಈઌΛࢀরͯ͠Ͷɻ w ൪୆ˠΫϥΠΞϯτʢͦͬͪଆʣʹΤϥʔ͕͋ΔΑɻ௚ͯ͠Ͷɻ w ൪୆ˠαʔόʔʢͬͪ͜ଆʣʹΤϥʔ͕͋ΔΑɻ͝ΊΜͶɻ

Cache-Control: max-age=604800 < Content-Type: text/html; charset=UTF-8 < Date: Thu, 21 Nov 2019 10:07:23 GMT < Etag: "3147526947+gzip+ident" < Expires: Thu, 28 Nov 2019 10:07:23 GMT < Last-Modified: Thu, 17 Oct 2019 07:18:26 GMT < Server: ECS (sjc/4E68) < Vary: Accept-Encoding < X-Cache: HIT < Content-Length: 1256 < Ϩεϙϯεϔομ ۭߦ

Cache-Control: max-age=604800 < Content-Type: text/html; charset=UTF-8 < Date: Thu, 21 Nov 2019 10:07:23 GMT < Etag: "3147526947+gzip+ident" < Expires: Thu, 28 Nov 2019 10:07:23 GMT < Last-Modified: Thu, 17 Oct 2019 07:18:26 GMT < Server: ECS (sjc/4E68) < Vary: Accept-Encoding < X-Cache: HIT < Content-Length: 1256 <

Cache-Control: max-age=604800 < Content-Type: text/html; charset=UTF-8 < Date: Thu, 21 Nov 2019 10:07:23 GMT < Etag: "3147526947+gzip+ident" < Expires: Thu, 28 Nov 2019 10:07:23 GMT < Last-Modified: Thu, 17 Oct 2019 07:18:26 GMT < Server: ECS (sjc/4E68) < Vary: Accept-Encoding < X-Cache: HIT < Content-Length: 1256 < ੒ޭͨ͠Α

ཧղ͠΍͍͢ɻ

සग़εςʔλείʔυ͸֮͑Α͏ɻ

සग़ͷϔομ΋֮͑Α͏ɻ

සग़ͷϔομ͸΍ͬͯΕ͹ͳΜͱͳ͘Θ͔Δɻ 3'$ʹ΋৭ʑఆٛ͞Ε͍ͯΔ΋ͷ͕͋ΔͷͰ ͦͪΒΛݟ·͠ΐ͏ɻ

εςʔτϨεͱ͍͏େࣄͳಛੑͷ࿩ɻ

ຖ౓)551ͷ௨৴ͷ౓ʹɺ ʮલճͷ௨৴ͨ͠಺༰ʯ΍ʮ௨৴૬खʯΛ ֮͑ͯͳͯ͘΋େৎ෉ͩΑɻ

௨৴૬खΛࣝผ͢Δํ๏͸)551ͷن֨ଆͰ ͸໘౗Λݟͳ͍͚Ͳɺ΍Γ͔ͨͬͨΒ֤ΞϓϦ έʔγϣϯͰ޷͖ʹ΍ͬͯͶɺͱ͍͏͜ͱɻ

3BDLͷ࿩

IUUQTHJUIVCDPNSBDLSBDL

3BDL͕ந৅Խ͍ͯ͠Δ΋ͷ͸ )551ͷϦΫΤετͱϨεϙϯε

run Proc.new do |env| [ 200, {'Content-Type' => 'text/plain'}, ['Hello']
] end 3BDLͷ࠷খͷ࢖͍ํ

run Proc.new do |env| [ 200, {'Content-Type' => 'text/plain'}, ['Hello']
] end envʹ͸ΫϥΠΞϯτ͔Βͷ ϦΫΤετͷ৘ใ͕ೖͬͯΔΑɻ Ϩεϙϯεͷεςʔλείʔυ Ϩεϙϯεϔομ ϨεϙϯεϘσΟ 3BDLͷΤϯυϙΠϯτͱͯ࣍͠ͷ Proc Λ࢖͏Αɻ

ͳΔ΄ͲͰ͢Ͷɻ

΋͏ͪΐͬͱྑ͍ײ͡ʹ͠·͢ɻ

class Hello def call(env) [200, {'Content-Type' => 'text/plain'}, ["Hello Rack\n"]]
end end run Hello.new

end end run Hello.new $ curl http://localhost:9292/

end end run Hello.new $ curl http://localhost:9292/ Hello Rack

͍͍ײ͡Ͱ͢Ͷɻ

NJEEMFXBSFΛڬΜͰΈ·͠ΐ͏ɻ

class Secret def initialize(app) @app = app end def call(env)
if env["PATH_INFO"] == '/secret' [200, {'Content-Type' => 'text/plain'}, ["This is Secret\n"]] else @app.call(env) end end end class Hello def call(env) [200, {'Content-Type' => 'text/plain'}, ["Hello Rack\n"]] end end run Secret.new(Hello.new)

class Secret def initialize(app) @app = app end def call(env)
if env["PATH_INFO"] == '/secret' [200, {'Content-Type' => 'text/plain'}, ["This is Secret\n"]] else @app.call(env) end end end class Hello def call(env) [200, {'Content-Type' => 'text/plain'}, ["Hello Rack\n"]] end end run Secret.new(Hello.new) NJEEMFXBSFͱͯ͠࢖͏DMBTTΛ3BDLͷ ΠϯλʔϑΣʔεʹैͬͨܗͰ࡞ΔΑɻ TFDSFUʹΞΫηεͨ͠ͱ͖͚ͩ5IJTJT4FDSFUͱ ฦͯ͠ɺͦΕҎ֎ͷͱ͖͸ॲཧΛଞʹؙ౤͛͢ΔΑɻ 4FDSFUΛΤϯυϙΠϯτʹͯ͠ɺؙ౤͛ઌΛ)FMMPʹ͢ΔΑɻ

$ curl http://localhost:9292/ Hello Rack

$ curl http://localhost:9292/hello $ curl http://localhost:9292/ Hello Rack

$ curl http://localhost:9292/hello Hello Rack $ curl http://localhost:9292/ Hello Rack

$ curl http://localhost:9292/secret $ curl http://localhost:9292/hello Hello Rack $ curl
http://localhost:9292/ Hello Rack

$ curl http://localhost:9292/secret This is Secret $ curl http://localhost:9292/hello Hello
Rack $ curl http://localhost:9292/ Hello Rack

ͪΐͬͱΠϠͳ༧ײ͕͢Δ෦෼ run Secret.new(Hello.new)

run Function.new(Secret.new(Hello.new(Hi.new))) ͪΐͬͱΠϠͳ༧ײ͕͢Δ෦෼ NJEEMFXBSF͕૿͑ͨΒେମ͜͏ͳ͍͖ͬͯͦ͏ʜɻ

use Function use Secret use Hello run Hi.new ͜͏͍͏෩ʹॎʹฒ΂ͯॻ͚·͢ɻ

IUUQTHJUIVCDPNSBDLSBDL

վΊͯ ͳΜͰ3BDLͷ࿩Λͨ͠ͷʁ

3BJMT΋3BDLʹ৐͔ͬͬͯΔ͔ΒͰ͢ɻ

$ ./bin/rails middleware

$ ./bin/rails middleware use Rack::Sendfile use ActionDispatch::Static use ActionDispatch::Executor use
ActiveSupport::Cache::Strategy::LocalCache::Middleware use Rack::Runtime use Rack::MethodOverride use ActionDispatch::RequestId use ActionDispatch::RemoteIp use Sprockets::Rails::QuietAssets use Rails::Rack::Logger use ActionDispatch::ShowExceptions use WebConsole::Middleware use ActionDispatch::DebugExceptions use ActionDispatch::Reloader use ActionDispatch::Callbacks use ActiveRecord::Migration::CheckPending use ActionDispatch::Cookies use ActionDispatch::Session::CookieStore use ActionDispatch::Flash use ActionDispatch::ContentSecurityPolicy::Middleware use Rack::Head use Rack::ConditionalGet use Rack::ETag use Rack::TempfileReaper run MyApp::Application.routes

ʜ͜Μͳʹ୔ࢁඞཁͳͷʁ

͜Ε͸ਓྨͷӳ஌ͷ݁থͰ͢ɻ ͋Γ͕ͨ͘࢖͍·͠ΐ͏ɻ ͖ͦͯͪ͠Μͱ಺෦·Ͱௐ΂·͠ΐ͏ɻ

·ͱΊ

·ͱΊ w 8FCۀք͸มԽ͕ૣ͍ͱ͍ͬͨ࿩͸ਖ਼͍͠෦෼΋͋Δ͚ͲɺͲͷۀքͩͬͯมԽ͕ૣ͍෦෼ͱ جૅʹͳ͍ͬͯͯɺͦ͏ͦ͏มΘΒͳ͍෦෼͸͋ΔΑɻ

·ͱΊ w 8FCۀք͸มԽ͕ૣ͍ͱ͍ͬͨ࿩͸ਖ਼͍͠෦෼΋͋Δ͚ͲɺͲͷۀքͩͬͯมԽ͕ૣ͍෦෼ͱ جૅʹͳ͍ͬͯͯɺͦ͏ͦ͏มΘΒͳ͍෦෼͸͋ΔΑɻ w มԽ͠ͳ͍෦෼͸Ͳ͜ʹ͋Δͷ͔ͱ͍͏͜ͱΛ஌͍ͬͯΔͱੜ͖΍͘͢ͳΔΑɻ͜ͷۀքʹ͓͍ ͯɺͦΕ͸ओʹʮඪ४Խ͞Εͨن֨ʯͱʮίϯϐϡʔλαΠΤϯεʯͷ෦෼ʹूதͯ͠ΔΑɻ

·ͱΊ w 8FCۀք͸มԽ͕ૣ͍ͱ͍ͬͨ࿩͸ਖ਼͍͠෦෼΋͋Δ͚ͲɺͲͷۀքͩͬͯมԽ͕ૣ͍෦෼ͱ جૅʹͳ͍ͬͯͯɺͦ͏ͦ͏มΘΒͳ͍෦෼͸͋ΔΑɻ w มԽ͠ͳ͍෦෼͸Ͳ͜ʹ͋Δͷ͔ͱ͍͏͜ͱΛ஌͍ͬͯΔͱੜ͖΍͘͢ͳΔΑɻ͜ͷۀքʹ͓͍ ͯɺͦΕ͸ओʹʮඪ४Խ͞Εͨن֨ʯͱʮίϯϐϡʔλαΠΤϯεʯͷ෦෼ʹूதͯ͠ΔΑɻ w ઌਓͷ஌ܙ͸ҒେͩΑɻڊਓͷݞʹ͸ૉ௚ʹ৐Δͷ͕͍͍Αɻࣗ෼Ͱ࡞ΔͱେମࣄނΔΑɻͱ͸ ͍͑ઌਓ͕Ͳ͏͍ͬͨ޻෉Λͯ͠ɺࠓԿނͦ͏ͳ͍ͬͯΔͷ͔Λ஍ಓʹௐ΂Δ͜ͱ͸େࣄͩΑɻ

·ͱΊ w 8FCۀք͸มԽ͕ૣ͍ͱ͍ͬͨ࿩͸ਖ਼͍͠෦෼΋͋Δ͚ͲɺͲͷۀքͩͬͯมԽ͕ૣ͍෦෼ͱ جૅʹͳ͍ͬͯͯɺͦ͏ͦ͏มΘΒͳ͍෦෼͸͋ΔΑɻ w มԽ͠ͳ͍෦෼͸Ͳ͜ʹ͋Δͷ͔ͱ͍͏͜ͱΛ஌͍ͬͯΔͱੜ͖΍͘͢ͳΔΑɻ͜ͷۀքʹ͓͍ ͯɺͦΕ͸ओʹʮඪ४Խ͞Εͨن֨ʯͱʮίϯϐϡʔλαΠΤϯεʯͷ෦෼ʹूதͯ͠ΔΑɻ w ઌਓͷ஌ܙ͸ҒେͩΑɻڊਓͷݞʹ͸ૉ௚ʹ৐Δͷ͕͍͍Αɻࣗ෼Ͱ࡞ΔͱେମࣄނΔΑɻͱ͸ ͍͑ઌਓ͕Ͳ͏͍ͬͨ޻෉Λͯ͠ɺࠓԿނͦ͏ͳ͍ͬͯΔͷ͔Λ஍ಓʹௐ΂Δ͜ͱ͸େࣄͩΑɻ
w γϯϓϧͱΠʔδʔ͸ҧ͏Αɻ͜ͷ҉໧஌͕ଟ͘ٻΊΒΕΔ8FCۀքͰ͸ॳֶऀʹͱͬͯγϯ ϓϧͳ΋ͷ͸গͳ͍Αɻʢނʹߴ౓ͳٕೳ৬Ͱ͋Δͱ͞Ε͍ͯΔଆ໘΋͋Δͱࢥ͏Αɻʣ

Rails と Rack と HTTP と通信の話 / Rails Rack HTTP, communication

Rails と Rack と HTTP と通信の話 / Rails Rack HTTP, communication

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