Go 1.22のEnhanced ServeMux chiから移行できるのか？

Transcript

1. 1 (P
   ͷ&OIBODFE
   4FSWF.VY
   DIJ͔ΒҠߦͰ͖Δͷ͔ʁ (P
   
   ϦϦʔεύʔςΟ
   !TPOBUBSE
   ͦͳଠ
   גࣜձࣾ4UBDL
2. 2 (P
   ͷ&OBIBOHFE
   4FSWF
   .VYͱ͸ʁ w )551
   )BOEMFSࢦఆ࣌ʹ)551
   .FUIPEΛࢦఆͰ͖ΔΑ͏ʹͳͬͨ
   w 1BUI͔Β஋ΛऔಘͰ͖ΔΑ͏ʹͳͬͨ
3. 3 (P
   ͷ&OBIBOHFE
   4FSWF
   .VYͱ͸ʁ w )551
   )BOEMFSࢦఆ࣌ʹ)551
   .FUIPEΛࢦఆͰ͖ΔΑ͏ʹͳͬͨ
4. 4 )551
   )BOEMFSࢦఆ࣌ʹ)551
   .FUIPEΛࢦఆͰ͖ΔΑ͏ʹͳͬͨ h := func(w http.ResponseWriter, r *http.Request) { if r.Method != "GET" { w.WriteHeader(http.StatusMethodNotAllowed) w.Write([]byte("error")) return } w.Write([]byte("Hello, World!")) } mux := http.NewServeMux() mux.HandleFunc("/hello",h) (P
   ΑΓલ͸ɺOFUIUUQ
   QBDLBHFͰ͸
   ͜͏͢Δ͔͠ͳ͔ͬͨ
5. 5 )551
   )BOEMFSࢦఆ࣌ʹ)551
   .FUIPEΛࢦఆͰ͖ΔΑ͏ʹͳͬͨ h := func(w http.ResponseWriter, r *http.Request) { w.Write([]byte("Hello, World!")) } r := chi.NewRouter() r.Get("/hello",h) DIJͷΑ͏ͳSE
   QBSUZ
   ϥΠϒϥϦͰ͸ɺ
   ઐ༻ͷϝιουΛར༻͢Δ
6. 6 )551
   )BOEMFSࢦఆ࣌ʹ)551
   .FUIPEΛࢦఆͰ͖ΔΑ͏ʹͳͬͨ h := func(w http.ResponseWriter, r *http.Request) { w.Write([]byte("Hello, World!")) } mux := http.NewServeMux() mux.HandleFunc("GET /hello",h) (P
   Ҏ߱͸ɺ)551
   .FUIPEΛύεͷઌ಄ʹࢦఆͰ͖Δ
7. 7 (P
   ͷ&OBIBOHFE
   4FSWF
   .VYͱ͸ʁ w 1BUI͔Β஋ΛऔಘͰ͖ΔΑ͏ʹͳͬͨ
8. 8 1BUI͔Β஋ΛऔಘͰ͖ΔΑ͏ʹͳͬͨ h := func(w http.ResponseWriter, r *http.Request) { userID := strings.TrimPrefix(r.URL.Path, "/user/") w.Write([]byte(userID)) } mux := http.NewServeMux() mux.HandleFunc("/user/",h) (P
   ΑΓલ͸ɺࣗ෼Ͱ஋Λύʔε͢Δඞཁ͕͋ͬͨ
9. 9 1BUI͔Β஋ΛऔಘͰ͖ΔΑ͏ʹͳͬͨ h := func(w http.ResponseWriter, r *http.Request) { userID := chi.URLParam(r,"id") w.Write([]byte(userID)) } r := chi.NewRouter() r.HandleFunc("/user/{id}",h) DIJͷΑ͏ͳSE
   QBSUZ
   ϥΠϒϥϦͰ͸ɺ͜ͷΑ͏ʹ࣮૷͢Δ͜ͱ͕Ͱ͖ͨ
10. 10 1BUI͔Β஋ΛऔಘͰ͖ΔΑ͏ʹͳͬͨ h := func(w http.ResponseWriter, r *http.Request) { userID := r.PathValue("id") w.Write([]byte(userID)) } mux := http.NewServeMux() mux.HandleFunc("/user/{id}",h) (PҎ߱͸ɺS1BUI7BMVFͰऔಘՄೳʹͳͬͨ
11. 11 DIJ΋(P
    ͷ4FSWF.VYʹ߹ΘͤͯରԠ h := func(w http.ResponseWriter, r *http.Request) { userID := r.PathValue("id") w.Write([]byte(userID)) } r := chi.NewRouter() r.HandleFunc("GET /user/{id}",h) DIJ
    WҎ߱͸ɺ(P
    ͱಉ͡ํ๏Ͱ
    )551
    .FUIPEͷࢦఆͱ1BUI
    7BMVFͷऔಘ͕Մೳʹͳͬͨ
12. 12 IUUQ4FSWF.VYʹඞཁͳ΋ͷ͸ἧͬͨʁ
    DIJ͔ΒҠߦͰ͖Δʁ
13. 13 (P
    ͷ4FSWF.VYͱDIJͷҧ͍ w ϧʔςΟϯά൑ఆ৚݅
    w DIJ͸׬શҰக
    w IUUQ4FSWF.VY͸લํҰக
    w (P͔Β͸1BUIͷ຤ඌʹ\^Λࢦఆʹ͢Δ͜ͱͰ׬શҰகʹͳΔ
14. 14 (P
    ͷ4FSWF.VYͱDIJͷҧ͍ w Bʹ)BOEMFSΛొ࿥ͯ͠ɺBCʹϦΫΤετΛૹͬͨ৔߹
    w IUUQ4FSWF.VY͸Bͷ)BOEMFSΛ࣮ߦ͠·͢ɻ
    w લํҰகͰBC͸BʹϚον͠·͢ɻ
    w DIJ͸
    /PU
    'PVOEΛฦ͠·͢ɻ
    w ׬શҰகͰBC͸BʹϚον͠·ͤΜɻ
    w B\^ʹ)BOEMFSΛొ࿥ͯ͠ɺBCʹϦΫΤετΛૹͬͨ৔߹
    w IUUQ4FSWF.VYͰ
    /PU
    'PVOEʹͳΓ·͢ɻ
    w ׬શҰகͰBC͸BʹϚον͠·ͤΜɻ
    w \^ͰDIJͱಉ͡ৼΔ෣͍Λ࣮ݱͰ͖ΔͷͰɺIUUQ4FSFWF.VY΁ҠߦՄೳ
15. 15 (P
    ͷ4FSWF.VYͱDIJͷҧ͍ w 7BMVFͷύλʔϯϚον
    w DIJ͸ҎԼͷΑ͏ʹύλʔϯΛࢦఆͰ͖·͢ɻIUUQ4FSWF.VYͰ͸Ͱ͖·ͤΜɻ
    w ਖ਼نදݱ
    w AEBUF\ZZZZaaEaaEaaEaaE^\NNaaEaaE^\EEaaEaaE^A
    w AEBUFA
    w ෦෼Ұக
    w AVTFS\VTFS*%^A
    w AVTFSA
    w ෳ਺ͷ7BMVF
    w A\ZZZZ^\NN^\EE^A
    w AA
    w ݸਓతʹ͸ɺ(SBQI2-Ͱ͋ΔͨΊ7BMVFͷύλʔϯϚονΛ࢖͏ػձ͸ͳ͍ͷͰɺ IUUQ4FSWF.VY΁ҠߦͰ͖Δɻ3&45Ͱ͸ݫ͍͠Մೳੑ͕͋Δɻ
16. 16 (P
    ͷ4FSWF.VYͱDIJͷҧ͍ w ϧʔςΟϯά΍ϛυϧ΢ΣΞͷઃఆํ๏ type Router interface { … Use(middlewares ...func(http.Handler) http.Handler) With(middlewares ...func(http.Handler) http.Handler) Router Group(fn func(r Router)) Router Route(pattern string, fn func(r Router)) Router Handle(pattern string, h http.Handler) HandleFunc(pattern string, h http.HandlerFunc) …. }
17. 17 (P
    ͷ4FSWF.VYͱDIJͷҧ͍ w ϧʔςΟϯά΍ϛυϧ΢ΣΞͷઃఆํ๏ r := chi.NewRouter() // UseʹΑΔϛυϧ΢ΣΞͷઃఆ r.Use(middleware.Logger) // RouteʹΑΔωετ r.Route("/articles", func(r chi.Router) { // WithʹΑΔϛυϧ΢ΣΞͷઃఆ r.With(paginate).HandleFunc("GET /", listArticles) r.HandleFunc("POST /", createArticle) r.HandleFunc("GET /search", searchArticles) r.Route("/{articleID}", func(r chi.Router) { r.Use(ArticleCtx) r.HandleFunc("GET /", getArticle) r.HandleFunc("PUT /", updateArticle) }) }) ͜Ε͕ศརͰDIJΛ࢖͍ͬͯΔਓ΋ଟ͍͸ͣ
18. 18 (P
    ͷ4FSWF.VYͱDIJͷҧ͍ w ͦ͜Ͱ࡞Γ·ͨ͠ʂ
    w (PͷIUUQ4FSWF.VYΛ࢖͍ͭͭɺDIJͱಉ༷ͳศརͳϧʔςΟϯάઃఆΛ࣮ݱ͢ ΔϥΠϒϥϦ
20. 20 NJDIJͱ͸ w NJDIJ
    
    IUUQTHJUIVCDPNHPNJDIJNJDIJ
    w IUUQ4FSWF.VY΁ͷޓ׵͕͋Δ)551ϧʔλʔ
    w ϧʔςΟϯάͷػೳ͸׬શʹIUUQ4FSWF.VY΁ҕৡͯ͠ɺొ࿥ॲཧͷ࣮૷͚ͩΛ࣋ͭɻ r := michi.NewRouter() // UseʹΑΔϛυϧ΢ΣΞͷઃఆ r.Use(middleware.Logger) // RouteʹΑΔωετ r.Route("/articles", func(r *michi.Router) { // WithʹΑΔϛυϧ΢ΣΞͷઃఆ r.With(paginate).HandleFunc("GET /", listArticles) r.HandleFunc("POST /", createArticle) r.HandleFunc("GET /search", searchArticles) r.Route("/{articleID}", func(r *michi.Router) { r.Use(ArticleCtx) r.HandleFunc("GET /", getArticle) r.HandleFunc("PUT /", updateArticle) }) }) DIJ3PVUFSΛ NJDIJ3PVUFSʹ
    ஔ͖׵͑Δ͜ͱͰ࢖͑·͢
    ͢΂ͯͷ"1*ʹޓ׵͕
    ͋ΔΘ͚Ͱ͸͋Γ·ͤΜ
22. 22 NJDIJͷಛ௃ w ϧʔςΟϯά͸IUUQ4FSWF.VYͱͷޓ׵ੑ
    w IUUQ4FSWFS.VY
    IUUQ)BOEMFS
    BOE
    IUUQ)BOEMFS'VOD
    w &OIBODFE
    IUUQ4FSWF.VY
    w )551
    .FUIPEͷࢦఆͱ1BUI7BMVFͷऔಘ
    w
    DIJͷΑ͏ͳΠϯλʔϑΣʔε
    w 3PVUF
    (SPVQ
    8JUI
    BOE
    DIJ
    NJEEMFXBSFT
    w .JEEMFXBSFͷΠϯλʔϑΣʔε͕ಉ͡ͳͷͰɺDIJͷػೳʹґଘ͍ͯ͠ͳ͚Ε͹ɺDIJ͕ఏڙ͠ ͍ͯΔNJEEMFXBSF͕ར༻ՄೳͰ͢
    w ֎෦ύοέʔδ΁ͷґଘ͸͋Γ·ͤΜ
    w ඪ४QBDLBHFͷΈΛར༻͍ͯ͠·͢
    w ܰྔ
    w ίʔυ͸໿ߦͰ͢ɻ
    w ύϑΥʔϚϯε
    w NJDIJͱIUUQ4FSWF.VY͸ಉ౳ͷύϑΥʔϚϯεͰ͢
    w IUUQ4FSWF.VY͸ߴ଎ʁɹ࣍ͷ5BLFEB͞ΜͷൃදͰʂ
23. 23 ·ͱΊ w DIJ͔ΒҠߦͰ͖Δͷ͔ʁ
    w )551
    .FUIPEͷࢦఆͱ1BUI7BMVF͑͋͞Ε͹ྑ͍৔߹͸IUUQ4FSWF.VYʹҠߦͰ͖Δ
    w 1BUI
    7BMVFͷύλʔϯϚον͕ඞཁͳ৔߹͸ɺDIJΛར༻͢Δ
    w DIJͷதͰϋϯυϥ΍ϛυϧ΢ΣΞͷઃఆ͚͕ͩඞཁͳ৔߹͸NJDIJΛ࢖͏͜ͱͰ IUUQ4FSWF.VYʹҠߦͰ͖Δ
24. 24 ͓·͚
    ϧʔςΟϯάͰؾΛ͚ͭΔϙΠϯτ w Bʹొ࿥ͯ͠ɺBʹϦΫΤετΛૹ৴͢Δ
    w 
    3FEJSFDU r := http.NewServeMux() h:= func(w http.ResponseWriter, r *http.Request) { w.Write([]byte("Hello, World!")) } r.HandleFunc("/a/", h) w := httptest.NewRecorder() req := httptest.NewRequest("", "/a", nil) r.ServeHTTP(w, req) fmt.Println(w.Result().StatusCode) // 301
25. 25 ͓·͚
    ϧʔςΟϯάͰؾΛ͚ͭΔϙΠϯτ w Bʹొ࿥ͯ͠ɺBʹϦΫΤετΛૹ৴͢Δ
    w 
    
    /PU'PVOE r := http.NewServeMux() h:= func(w http.ResponseWriter, r *http.Request) { w.Write([]byte("Hello, World!")) } r.HandleFunc("/a", h) w := httptest.NewRecorder() req := httptest.NewRequest("", "/a/", nil) r.ServeHTTP(w, req) fmt.Println(w.Result().StatusCode) // 404 }
26. 26 ͓·͚
    ϧʔςΟϯάͰؾΛ͚ͭΔϙΠϯτ w BͱB྆ํʹϋϯυϥΛొ࿥͠ͳ͍ͱ૝ఆͨ͠ڍಈʹͳΒͳ͍ʁ
    w ରԠࡦ
    w Bʹొ࿥͠ɺNJEEMFXBSFͰϦΫΤετͷ຤ඌΛ࡟আ
    w B
    
    
    w B
    
    NJEEMFXBSFͰ຤ඌͷ࡟আ
    B
    
     r := michi.NewRouter() h:= func(w http.ResponseWriter, r *http.Request) { w.Write([]byte("Hello, World!")) } r.Use(middleware.StripSlashes) r.HandleFunc("/a", h) w := httptest.NewRecorder() req := httptest.NewRequest("", "/a/", nil) r.ServeHTTP(w, req) fmt.Println(w.Result().StatusCode) // 200
27. 27 ͓·͚
    ϧʔςΟϯάͰؾΛ͚ͭΔϙΠϯτ w ϛυϧ΢ΣΞͷ࣮ߦ
    w BDʹϦΫΤετ͢ΔͱBʹରͯ͠લํҰகͰNJEEMFXBSFͱϋϯυϥ͕࣮ߦ͞ΕΔ r.Route("/a", func(r *michi.Router) { r.Use(m("m")) r.HandleFunc("/", h("a")) r.HandleFunc("/b", h("b")) }) w := httptest.NewRecorder() req := httptest.NewRequest("", "/a/c", nil) // Status Code 200 // ma
28. 28 ͓·͚
    ϧʔςΟϯάͰؾΛ͚ͭΔϙΠϯτ w ϛυϧ΢ΣΞͷ࣮ߦ
    w BDʹϦΫΤετ͢ΔͱલํҰகͰNJEEMFXBSFΛ࣮ߦɺϋϯυϥ͸\^ʹΑΓ׬શҰ கʹͳ͍ͬͯΔͷͰ࣮ߦ͞Εͳ͍ r.Route("/a", func(r *michi.Router) { r.Use(m("m")) r.HandleFunc(“/{$}”, h("a")) r.HandleFunc("/b", h("b")) }) w := httptest.NewRecorder() req := httptest.NewRequest("", "/a/c", nil) // Status Code 404 // m