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4MJN'SBNFXPSLͰ࢝ΊΔ 
 1)1ͷNJEEMFXBSF 1)1ΧϯϑΝϨϯεؔ੢ 
 ߹ಉձࣾςϯϚυɹࢁԬ޿޾

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ࣗݾ঺հ ࢁԬ޿޾!IJSP@Z 1)1ͱ͔/PEFKTͱ͔ॻ͖·͢ Ұ൪޷͖ͳͷ͸$44 ߹ಉձࣾςϯϚυ୅දࣾһ

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߹ಉձࣾςϯϚυ ೥݄ઃཱʢظ໨ʣ ୅දࣾһਓ!! Ϗδωεࢧԉࣄۀ αʔϏε։ൃࣄۀ JSVDBNJNFNPDPOBTV

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NJEEMFXBSFͱ͸ʁ ͱ͍͏࿩Λ͠·͢

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XFCΞϓϦέʔγϣϯͱ͸ )551ͷϦΫΤετΛड͚औΓ ͍Ζ͍ΖॲཧΛͯ͠ ೝূͱ͔%#ʹσʔλอଘͱ͔ ͍ΘΏΔϏδωεϩδοΫ )551ͷϨεϙϯεΛฦ͢

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؆୯ʹඳ͘ͱ͜͏

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ϑΟϧλʔͱ͍͏ൃ૝ શϦΫΤετڞ௨ͷॲཧ ॲཧલͷϩάΠϯೝূ ॲཧલͷσʔλऔಘɹͳͲ ΞϓϦέʔγϣϯຊମͷલʹ
 ॲཧΛڬΊΔΑ͏ʹ͢Ε͹Α͍ͷͰ͸

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ϑΟϧλʔʢલॲཧʣ

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ϑΟϧλʔͷൃ૝ɺଓ͖ શϦΫΤετڞ௨ͷॲཧɺ·ͩ͋Δ ॲཧޙͷϩΪϯά ॲཧޙʹ·ͱΊͯϝʔϧૹ৴ ΞϓϦέʔγϣϯຊମͷޙʹ΋
 ॲཧΛڬΊΔΑ͏ʹ͢Ε͹͍͍ΑͶ

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ϑΟϧλʔʢޙॲཧʣ

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͜͜Ͱ/PEFKTͷ &YQSFTTͷ࿩Λ͠·͢

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&YQSFTT IUUQFYQSFTTKTDPN l'BTU VOPQJOJPOBUFE NJOJNBMJTUXFCGSBNFXPSLGPS /PEFKTz /PEFKTͰҰ൪࢖ΘΕ͍ͯΔ
 XFCΞϓϦέʔγϣϯϑϨʔϜϫʔΫ

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)FMMP8PSME const express = require('express'); const app = express(); app.get('/', function(req, res) { res.send('Hello World!'); }); app.listen(3000);

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͖ͬ͞ͷਤ

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&YQSFTTͷߏ੒ SPVUJOH ϦΫΤετΛॲཧʹϚοϐϯά NJEEMFXBSF SPVUJOHͷաఔͰ
 ೚ҙͷॲཧΛࠩ͠ࠐΉͨΊͷ࢓૊Έ

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&YQSFTTͷNJEEMFXBSF ࢖͍Ͳ͜Ζ ڞ௨ॲཧʢલॲཧɺޙॲཧʣ ͭͷSPVUJOHʹରͯ͠ෳ਺࿈݁Ͱ͖Δ OFYUDBMMCBDLΛݺͿͱ
 ࣍ͷNJEEMFXBSFʹॲཧ͕ҠΔ ࣮ߦͷॱং͸એݴॱ

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NJEEMFXBSFͷجຊ function(req, res, next) { // Կ͔લॲཧΛ͢Δ next(); // ࣍ͷmiddlewareΛݺͿ // Կ͔ޙॲཧΛ͢Δ };

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NJEEMFXBSFͷྫ const myLogger = function(req, res, next) { console.log('Logged!'); next(); }; app.get('/', myLogger, function(req, res) { res.send('Hello World!'); });

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NJEEMFXBSFͷྫ શ const myLogger = function(req, res, next) { console.log('Logged!'); next(); }; app.use(myLogger); // શϦΫΤετʹద༻ app.get('/', function(req, res) { res.send('Hello World!'); });

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ೖΕࢠʹͳ͍ͬͯΔ

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NJEEMFXBSFͷྫʢෳ਺ʣ const auth = function(req, res, next) {}; const logger = function(req, res, next) {}; app.get('/', auth, logger, function(req, res) { res.send('Hello World!'); });

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NJEEMFXBSFͷྫʢʁʣ const myLogger = function(req, res) { console.log('Logged!'); }; app.get('/', function(req, res, next) { res.send('Hello World!'); next(); }, myLogger); // ॲཧ࣮ߦޙʹݺ͹ΕΔ

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͋ΒΏΔॲཧ͕ NJEEMFXBSFͱͯ͠ ࣮૷ɾ࣮ߦ͞ΕΔੈք

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ೖΕࢠঢ়ଶ

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λϚωΪΈ͍ͨʁ QIPUPCZEBSXJO#FMMMJDFOTFEVOEFS$$#: 
 IUUQTXXXqJDLSDPNQIPUPTEBSXJOCFMM

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Ұํ1)1Ͱ͸ ʢؼ͖ͬͯͨʂʣ

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4UBDL1)1 IUUQTUBDLQIQDPN l$PNQPTJOH)UUQ,FSOFM*OUFSGBDF NJEEMFXBSFTTJODFz l8IBUEPXFXBOU 3FVTFBUUIF XFCMBZFSz 4ZNGPOZͷ)UUQ,FSOFM*OUFSGBDF

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4UBDL1)1

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Ͱ͸ͦΖͦΖ 4MJN'SBNFXPSLͷ࿩

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4MJN'SBNFXPSLW IUUQTXXXTMJNGSBNFXPSLDPN )5513PVUFS .JEEMFXBSF 1434VQQPSU %FQFOEFODZ*OKFDUJPO

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143 IUUQXXXQIQpHPSHQTSQTS )551NFTTBHFJOUFSGBDFT 1TSa)UUQa.FTTBHFa3FRVFTU*OUFSGBDF 1TSa)UUQa.FTTBHFa3FTQPOTF*OUFSGBDF XFCΞϓϦͷೖग़ྗͷඪ४Խ

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)FMMP8PSME // autoloadͱ͔use͸লུ… $app = new \Slim\App(); $app->get('/', function($request, $response) { $response->getBody() ->write('Hello World!'); return $response; }); $app->run();

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؆୯Ͱ͠ΐʁ

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͍Α͍Α NJEEMFXBSFͷ࿩

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NJEEMFXBSFʢؔ਺ʣ function(Request $request, Response $response, callable $next): Response {
 // Կ͔લॲཧΛ͢Δ $response = $next($request, $response); // Կ͔ޙॲཧΛ͢Δ return $response; };

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NJEEMFXBSFʢΫϥεʣ class ExampleMiddleware { public function __invoke( Request $request, Response $response, callable $next ): Response { // …ؔ਺ͷͱ͖ͱಉ͡ } }

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NJEEMFXBSFͷద༻ $app->get('/', function($request, $response) { // Կ͔ॲཧͯ͠ResponseΛฦ͢ })->add(ExampleMiddleware::class); // ΋͠΋શॲཧʹڬΉͳΒ $app->add(ExampleMiddleware::class);

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DPOUSPMMFS // $app->get('/', ExampleAction::class); class ExampleAction { public function __invoke( Request $request, Response $response, array $args): Response
 { return $response; } }

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%*ίϯςφͱ ૊Έ߹ΘͤΔͱ ΋ͬͱศརʹ

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4MJNͷ%*ίϯςφͷҐஔ෇͚ Πϯελϯεੜ੒͸%*ίϯςφͷ੹຿ ޷͖ͳ%*ίϯςφʹࠩ͠ସ͑Մೳ 1JNQMF1)1%*"DDMJNBUF $POUBJOFS*OUFSPQ࣮૷ͷίϯςφ 143࣮૷ͷίϯςφʢ͔Βʣ

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%*ίϯςφͱͷ૬ੑ @@JOWPLFϝιου͕͋Ε͹Α͍ͷͰ DPOUSPMMFS΋NJEEMFXBSF΋ ίϯετϥΫλΠϯδΣΫγϣϯ ೚ҙͷΠϯελϯεΛ౉ͤΔ NPEFMΫϥεͱ͔ɺSFOEFSFSͱ͔

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DPOUSPMMFS /** @var \Slim\Views\Twig */ private $view; public fucntion __construct(Twig $view) { $this->view = $view; } public function __invoke(Request $request, Response $response, array $args): Response { return $this->view->render($response, 'foo.twig'); }

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࿩Λ໭ͯ͠ɺ143ͷ࿩

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ؔ܎͋Γͦ͏ͳ143 IUUQXXXQIQpHPSHQTS 1)14UBOEBSET3FDPNNFOEBUJPOT 143)551.FTTBHF*OUFSGBDF"DDFQUFE 143$POUBJOFS*OUFSGBDF"DDFQUFE 143)551.JEEMFXBSFT%SBGU

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143 "DDFQUFE %*ίϯςφͷJOUFSGBDFͷඪ४Խ 1TSa$POUBJOFSa$POUBJOFS*OUFSGBDF HFUͱIBTͷϝιουΛ࣋ͭ

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143 %SBGU .JEEMFXBSF*OUFSGBDF NJEEMFXBSFࣗମʹؔ͢Δ΋ͷ %FMFHBUF*OUFSGBDF ҕ೚ઌίΞͷΞϓϦϨΠϠʔʁ ·ͩٞ࿦ͷߦํ͕ఆ·͍ͬͯͳ͍

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1)1ͷNJEEMFXBSFྲّྀ %PVCMF1BTT 4MJN͸ͬͪ͜ GO SFRVFTU SFTQPOTF OFYU SFTQPOTF 4JOHMF1BTT GO SFRVFTU OFYU SFTQPOTF

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.JEEMFXBSF*OUFSGBDF namespace Psr\Http\ServerMiddleware; interface MiddlewareInterface { public function process( ServerRequestInterface $request, DelegateInterface $delegate ): ResponseInterface; }

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%FMFHBUF*OUFSGBDF namespace Psr\Http\ServerMiddleware; interface DelegateInterface { public function process( ServerRequestInterface $request ): ResponseInterface; }

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ଞͷϑϨʔϜϫʔΫͷ৔߹

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-BSBWFM IUUQTMBSBWFMDPNEPDT NJEEMFXBSF 143ͳͲ͸ҙ͍ࣝͯ͠ͳ͍ ैདྷͷDPOUSPMMFSͷิॿతͳ໾ׂ ڞ௨ॲཧΛ࣮૷͢ΔͨΊͷ࢓૊Έ

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-BSBWFMྫ class CheckAge { public function handle( \Illuminate\Http\Request $request, \Closure $next) { // Կ͔ॲཧʢલͰ΋ޙΖͰ΋ʣ return $next($request); } } Route::get('/', function() { /* ॲཧ */ }) ->middleware(CheckAge::class);

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$BLF1)1 $BLF1)1͔ΒNJEEMFXBSF͕͋Δ ࣮૷ํ๏͸4MJNͱ΄ͱΜͲಉ͕ͩ͡ɺ
 ਖ਼௚͜ͳΕ͍ͯͳ͍ײ͡ ΫϥεͰ͸ͳ͘ΠϯελϯεΛ౉͢ IUUQTXXXTMJEFTIBSFOFUNBSLTUPSZ DBLFQIQUIFSPBEBIFBE

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4ZNGPOZ NJEEMFXBSFʹ૬౰͢Δػೳ͸ͳ͍ ػೳͱͯ͠͸ϑΟϧλʔ͕͋Δ 4JMFYͰNJEEMFXBSFͱݺͿ΋ͷ͸͋Δ ͕ɺ͍ΘΏΔϑΟϧλʔͰ͔͠ͳ͍

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;FOE&YQSFTTJWF IUUQTEPDT[FOEGSBNFXPSLDPN [FOEFYQSFTTJWF 143.JEEMFXBSF3PVUJOH%* 143΍ͳͲͷඪ४Λҙࣝ BDUJPOΫϥε΋NJEEMFXBSFͱ࣮ͯ͠૷

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;FOE&YQSFTTJWFྫ $helloMiddleware = function ( ServerRequestInterface $request, DelegateInterface $delegate ) { return new TextResponse('Hello', 200); }; // ͋Δ͍͸MiddlewareInterfaceΛ࣮૷ͨ͠Ϋϥε $app->get('/hello', $hellosMiddleware);

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NJEEMFXBSF ͍͔͕Ͱ͔ͨ͠ʁ

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·ͱΊ NJEEMFXBSFͱ͍͏ߟ͑ํΛ஌Δ͜ͱ ॲཧΛNJEEMFXBSFͰ෼ׂ➡ςετ༰қੑ 143Ͱඪ४Խ͞ΕΔ͜ͱͰࠩ͠ସ͑Մೳʹ %*ίϯςφͱͷ૊Έ߹Θͤɺศར 4MJNͱ͔;FOE&YQSFTTJWF໘ന͍Αʂ

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͋Γ͕ͱ͏͍͟͝·ͨ͠ ࣭໰͕͋Ε͹Ͳ͏ͧ