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すぐ使える Cloudflare Workers!
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Kei Kamikawa
March 09, 2024
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すぐ使える Cloudflare Workers!
Kei Kamikawa
March 09, 2024
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Transcript
͙͑͢Δ$MPVE fl BSF8PSLFSTʂ $MPVE fl BSF.FFUVQ0LJOBXB7PM
!DPEFIFY !$PEF)FY w /05")05&-Ͱಇ͍͍ͯ·͢ w 1P$Λ࡞ͬͯɺӡ༻·Ͱ͍࣋ͬͯ͘ w ࣗಈԽɺ"*ΠϯςάϨʔγϣϯ w ͓٬༷͚ɺ͚ࣾ
͙͢ʹָ͍͑ͯ͠ʂ
͙͢ʹָ͍͑ͯ͠ʂ w σϓϩΠ͢Ε͙͢ʹ͑Δʂ w ؆୯ͳ+BWB4DSJQUͷίʔυ͚ͩͰ͑Δʂ w ࢝ΊΔͨΊʹ֮͑Δ͜ͱ͕গͳ͍ʂ w ૣ͍ʂʂ
IUUQTTQFBLFSEFDLDPNDPEFIFYDMPVE fl BSFXPSLFSTIBMFTJJ
ΞϓϦέʔγϣϯͷ։ൃڥΛ͑Δ ίϯςφΛͬͨڥͱͷൺֱ
ίϯςφ࣌ͷ։ൃڥ
ίϯςφ࣌ͷ։ൃڥ w ։ൃڥΛ͑Δͷ໘͍͘͞ʂ w w
ίϯςφ࣌ͷ։ൃڥ w ։ൃڥΛ͑Δͷ໘͍͘͞ʂ w %PDLFS fi MFͷهड़ɺΞϓϦΛಈ͔ͨ͢Ίͷઃఆ ϑΝΠϧͷهड़ɺڥมͳͲ w
ίϯςφ࣌ͷ։ൃڥ w ։ൃڥΛ͑Δͷ໘͍͘͞ʂ w %PDLFS fi MFͷهड़ɺΞϓϦΛಈ͔ͨ͢Ίͷઃఆ ϑΝΠϧͷهड़ɺڥมͳͲ w %#ͩͬͨΓ2VFVFͩͬͨΓɺ$SPO+PCͳͲ
ΛϩʔΧϧͰ༻ҙ͢Δͷେม
None
֮͑Δ͜ͱ͕͍ͬͺ͍ʂʂ
$MPVE fl BSF8PSLFSTͷ߹
$MPVE fl BSF8PSLFSTͷ߹ w ։ൃڥςϯϓϨʔτΛͬͯηοτΞοϓՄೳ w ։ൃڥͱσϓϩΠڥͷဃ͕গͳ͍ w ϥϯλΠϜͷXPSLFSE044
IUUQTHJUIVCDPNDMPVE fl BSFXPSLFSE w ΠϯϑϥͷػೳXPSLFSEΛܦ༝ͯ͠ར༻Ͱ͖Δ
ΞϓϦέʔγϣϯͷ։ൃڥΛ͑Δ $ npx create-cloudflare my-app --framework hono \ --deploy false
ΞϓϦέʔγϣϯͷ։ൃڥΛ͑Δ $ tree my-app --gitignore my-app ├── README.md ├── package.json
├── src │ └── index.ts ├── tsconfig.json └── wrangler.toml
ΞϓϦέʔγϣϯͷ։ൃڥΛ͑Δ $ cd my-app && npm run dev $
curl http://localhost:8787 Hello Hono!
w XSBOHMFSUPNMʹσϓϩΠޙʹར༻͢ΔڥมΛॻ͘ w EFWWBSTʹϩʔΧϧͰར༻͍ͨ͠ڥมΛॻ͘ ڥมΛ͑Δ
ڥมΛ͑Δ $ echo "ENV = \"local\"" >> .dev.vars $
ls .dev.vars .dev.vars
name = "my-app" compatibility_date = "2023-01-01" [vars] ENV = "development"
ڥมΛ͑Δ XSBOHMFSUPNM
import { Hono } from "hono"; const app = new
Hono<{ Bindings: { ENV: string; }; }>(); app.get("/", (c) => c.text(c.env.ENV)); export default app; ڥมΛ͑Δ JOEFYUT
ڥมΛ͑Δ $ cd my-app && npm run dev $
curl http://localhost:8787 local
w XSBOHMFSίϚϯυΛར༻ͯ͠ϦιʔεΛ࡞ w ϦιʔεΛར༻͢ΔͨΊʹXSBOHMFSUPNMઃఆΛهड़ w $MPVE fl BSF8PSLFSTͰར༻Ͱ͖ΔϛυϧΣΞ جຊಉ͡
ϛυϧΣΞΛ͑Δ
ϛυϧΣΞΛ͑Δʢྫ,7ʣ $ npx wrangler kv:namespace create TEST_KV ⛅ wrangler 3.17.1
------------------- 🌀 Creating namespace with title "my-app-TEST_KV" ✨ Success! Add the following to your configuration file in your kv_namespaces array: { binding = "TEST_KV", id = "da56a0e3ee6641fabf26b726e60fa550" }
[[kv_namespaces]] binding = "TEST_KV" id = "da56a0e3ee6641fabf26b726e60fa550" XSBOHMFSUPNM ϛυϧΣΞΛ͑Δʢྫ,7ʣ
const app = new Hono<{ Bindings: { TEST_KV: KVNamespace }
}>(); app.get("/counter", async (c) => { const key = c.req.query()["key"] || "defaultKey"; const count = Number(await c.env.TEST_KV.get(key)); const count = !isNaN(value) ? value + 1 : 1; await c.env.TEST_KV.put(key, String(count)); return c.text(String(count)); }); export default app; JOEFYUT ϛυϧΣΞΛ͑Δʢྫ,7ʣ
$ curl http://localhost:8787/counter 1 ϛυϧΣΞΛ͑Δʢྫ,7ʣ
ͪΐͬͱͨ͠Ϣʔεέʔε /05")05&-ͷ߹
$034ͷϔομՃ
$034ͷϔομՃ
$034ͷϔομՃ
͍߹ΘͤͷϝλใՃ
w ΞϓϦ͔Β;FOEFTLͷ͍߹ΘͤϑΥʔϜͷ ಋઢ͕༻ҙ͞Ε͍ͯΔ w ϩάΠϯதͷͲͷ͓٬༷͔Βͷ͓͍߹Θ͔ͤ Ѳ͍ͨ͠ w ؔ࿈͢ΔใΓ͍ͨ
͍߹ΘͤͷϝλใՃ
͍߹ΘͤͷϝλใՃ
w ΞϓϦ͔Βͷಋઢશͯ$MPVE fl BSF8PSLFSTͷ 63-Λࢦఆ͢Δ w ϝλใ63-ΫΤϦύϥϝʔλʔʹηοτ͢Δ w 8PSLFS্ͰΫΤϦύϥϝʔλʔͱҰக͢Δ
νέοτϑΟʔϧυ൪߸ࠩ͠ସ͑Δ UG@ ͍߹ΘͤͷϝλใՃ
ϝϯςφϯεϞʔυ
ϝϯςφϯεϞʔυ IUUQTTQFBLFSEFDLDPNDPEFIFYHSQDDMJFOUPODMPVE fl BSFXPSLFST
$IBU(151SPYZ
w (15TͷΞΫγϣϯ͔Β/05")05&-"1*Λ ར༻͢ΔͨΊͷ1SPYZ w $IBU(150"VUIೝূΛఏڙ͍ͯ͠ΔͷͰ ϩάΠϯ͕Ͱ͖Ε/")"1*Λ͑Δ w "1*ͱ0"VUIαʔόʔಉ͡3PPU63-͡Όͳ͍ͱ
ར༻Ͱ͖ͳ੍͍ݶ͕͋ΔͨΊ $IBU(151SPYZ
$IBU(151SPYZ w BVUIPSJ[BUJPOͱUPLFOΛఏڙ w 4DPQF'JSFCBTF"VUIͰඞཁͳ ༰Λೖྗ͢Δ
$IBU(151SPYZ
%ZOBNJD-JOLT
w 'JSFCBTFͰఏڙ͞Ε͍ͯΔػೳ w %ZOBNJD-JOLTഇࢭ༧ఆ w ϢχόʔαϧϦϯΫͷ༷ʹԊͬͯ։ൃ͢Δඞ ཁ͕͋ͬͨ w ϦϯΫΛ։͘ͱɺରԠ͢ΔΞϓϦ͕ىಈ ͞Εɺͦͷը໘Λ։͘͜ͱ͕Ͱ͖Δ
w ͪΖΜϓϨϏϡʔը໘͋Δ %ZOBNJD-JOLT
%ZOBNJD-JOLT w ॖ63-Λൃߦ͢ΔΠϝʔδ w 63-ʹ͏จࣈྻ͕ඃΒͳ͍Α͏ʹ %VSBCMF0CKFDUTͷτϥϯβΫγϣϯΛར༻ w )POPΛͬͯɺϓϨϏϡʔը໘ͱࣝผࢠͷใΛؚ Ίͨ+40/ϑΝΠϧʢ"TTFU-JOL
fi MFʣΛฦ͢
ΧελϚΠζ ֎෦ͷσʔλετϨʔδΛ͏
ίϯγΣϧδϡϓϥοτϑΥʔϜ
֎෦ͷϩάج൫Λ͏ ($1$MPVE-PHHJOH
ʜͷલʹ-PH1VTIͷհ
-PH1VTI
w $MPVE fl BSFʹؔ࿈ͨ͠ϩάΛ࿈ܞͰ͖Δ ετϨʔδϩάΛૹΓ͚ͭΔػೳ w $MPVE fl BSF8PSLFSTͷ߹DPOTPMFMPHͷ
தΛ1VTIͰ͖Δ -PH1VTI
-PH1VTI
-PH1VTI
-PH1VTI
-PH1VTI
-PH1VTI
ࣗͰϩάΛૹΔ
w ͓ͦΒ͘།Ұͷऑ w $MPVE fl BSFͷΈͩͱϩάΛ୳͢ͷʹۤ࿑͢Δ w ͏ͪͷϢʔεέʔεͩͱ$MPVE-PHHJOHΛܦ༝ͯ͠ ૹΔํ͕͍҆
ࣗͰϩάΛૹΔ
2VFVFͰϩάΛૹ৴͢Δ
w ($1ͷ$MPVE-PHHJOHૹ৴͢Δ w ࠓͩͱ5BJM8PSLFSTΛར༻͢Δͷ͕Φεεϝ͔ 2VFVFͰϩάΛૹ৴͢Δ
2VFVFͰϩάΛૹ৴͢Δ w 4DPQFΛهड़ w $MPVE-PHHJOHͷ"1* ϦΫΤετ͢Δ
2VFVFͰϩάΛૹ৴͢Δ w -PHHFS$MBTT w ྻΛ࣋ͭϓϩύςΟ FOUSJFT w "1*ϋϯυϥͰ ͜ͷϝιουΛݺͼग़͢
2VFVFͰϩάΛૹ৴͢Δ w "1*ͷॲཧͷ࠷ޙʹ FOUSJFTΛΩϡʔʹૹ৴͢Δ w όοναΠζͷ্ݶ NFTTBHFT
2VFVFͰϩάΛૹ৴͢Δ w $POTVNFSͰϝοηʔδΛ ड৴͢Δ w $MPVE-PHHJOHૹ৴
֎෦ͷΩϡʔΛ͏ $MPVE5BTLTͷซ༻
8PSLFST2VFVF CFUB ͕ෆ҆ఆ
8PSLFST2VFVF͕ෆ҆ఆ ͨ·ʹΩϡʔ͕٧·Δ
8PSLFST2VFVF͕ෆ҆ఆ αʔόʔ͔ΒͷλΠϜΞτͳ͍
w $MPVE fl BSF8PSLFST্ʹඇಉظ͚ͷ ΤϯυϙΠϯτΛ࡞͢Δ w 8PSLFSTܦ༝Ͱ5BTLΛ࡞͢Δ w ࡞͞Εͨ5BTLΛͱʹ$MPVE5BTLTܦ༝Ͱ
ΤϯυϙΠϯτ͕ୟ͔ΕΔ $MPVE5BTLTΛ͏
$MPVE5BTLTΛ͏
͙͢ʹָ͍͑ͯ͠🔥
͙͢ʹָ͍͑ͯ͠🔥 w ։ൃͨ͠ΞϓϦΛ୭͔ʹͬͯΒ͏·Ͱͷ εςοϓ͕͘ͳͬͨ w ։ൃˠϦϦʔεˠϑΟʔυόοΫʢϧʔϓʣ w Γ͍ͨ͜ͱͷຊ࣭ʹूதͰָ͖͍ͯ͠ʂʂ