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͓͏ͪʹAPIΛੜ΍͓͢࿩ 2018/08/03 Kyoto.LT #21 γʔαʔגࣜձࣾ Itsuki AOYAGI (@yagi2)

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ࣗݾ঺հ • ੨༄ थʢItsuki AOYAGI) • ΍͗ʹ͍ʢ@yagi2, @yaginierʣ • γʔαʔגࣜձࣾ • AndroidΞϓϦΤϯδχΞ • ͓͏͕ͪେ޷͖

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ࣗݾ঺հ • ੨༄ थʢItsuki AOYAGI) • ΍͗ʹ͍ʢ@yagi2, @yaginierʣ • γʔαʔגࣜձࣾ • AndroidΞϓϦΤϯδχΞ • ͓͏͕ͪେ޷͖

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࠷ۙ͸؆୯ʹ͓͏ͪͱITΛܨ͛ΒΕΔ ɾGoogle Home ɾAmazon Alexa ɾHomePod ……

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࠷ۙ͸؆୯ʹ͓͏ͪͱITΛܨ͛ΒΕΔ ɾGoogle Home ɾAmazon Alexa ɾHomePod …… ͕ɺҙ֎ͱͰ͖Δ͜ͱ͸ݶΒΕ͍ͯΔ……

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σϑΥϧτͰແ͍ػೳΛ΍Δʹ͸ • ࣗ෼ͰΞΫγϣϯ΍εΩϧΛ࢖͏ • ൺֱత؆୯ʹ௥ՃͰ͖Δ͕ॊೈੑ͸ऑ͍ • IFTTTΛ࢖ͬͯWebhook͍ͯ͠Ζ͍Ζ΍Δ • Webhook͢ΔͷͰՄೳੑ͸ແݶେ͕ͩ༻ҙ͢Δ΋ͷ΋ଟ͍

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σϑΥϧτͰແ͍ػೳΛ΍Δʹ͸ • ࣗ෼ͰΞΫγϣϯ΍εΩϧΛ࢖͏ • ൺֱత؆୯ʹ௥ՃͰ͖Δ͕ॊೈੑ͸ऑ͍ • IFTTTΛ࢖ͬͯWebhook͍ͯ͠Ζ͍Ζ΍Δ • Webhook͢ΔͷͰՄೳੑ͸ແݶେ͕ͩ༻ҙ͢Δ΋ͷ΋ଟ͍

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͓͏ͪAPI

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APIʢAPlication Interfaceʣ ஌ͬͯΔਓ

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API࢖ͬͨ͜ͱ͋Δਓ

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API࡞ͬͨ͜ͱ͋Δਓ

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ࣗ୐ʹAPIαʔό͕͋Δਓ

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͓͏ͪAPI • ࣗ୐ͷ͋Ε͜ΕΛHTTP(S)ܦ༝Ͱ͋Ε͜ΕͰ͖ ΔΑ͏ʹ͢Δ΍ͭ • ͓͏ͪͷঢ়ଶʢGETʣ • Ոిͷૢ࡞ʢPOSTʣ

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ԿΛ࣮ݱ͍͔ͨ͠ • PCͷిݯΛೖΕ͍ͨʢWake on LANʣ • ΠϯλʔωοτϥδΦͷૢ࡞Λ͍ͨ͠ • ΤΞίϯ౳ͷՈిͷૢ࡞Λ͍ͨ͠ • ෦԰ͷԹ౓ͱ͔औΓ͍ͨ

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ࠓճ͸ेീ൪ͷKotlinͰAPIΛ࡞Δ

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KotlinͰͷAPI • બ୒ࢶ͸͍Ζ͍Ζ͋ΔʢͳʹͤJavaͷࢿ࢈͕࢖͑ΔͷͰʣ • SpringBootવΓ…… • KotlinͱSpring BootΛ࢖ͬͯαΫοͱୟ͚ΔAPIΛ࡞Δ • ͔͠͠KotlinͰ΍Γ͍ͨ • ͷͰKtorͱ͍͏ϑϨʔϜϫʔΫΛ࢖͏

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Ktor • ΊͬͪΌബ͍WebΞϓϦͷϑϨʔϜϫʔΫ ( https://github.com/ktorio/ktor ) • ඇಉظॲཧ΋͍͍ײ͡ʹͳ͍ͬͯΔ • KotlinͷCoroutinesͱ͍͏ػೳ fun main(args: Array) { embeddedServer(Netty, 8080) { routing { get("/") { call.respondText("Hello, world!", ContentType.Text.Html) } } }.start(wait = true) }

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KtorͰͷAPI • https://github.com/yagi2/Kaya • Private Repository • ͱ͸͍࣮͑૷͸ࠓճͷຊ࣭తͳ෦෼Ͱ͸ͳ͍ͷͰলུ • KtorͰ͓͏ͪAPIΛϦϓϨʔεͨ͠࿩ - Speaker Deck

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ͯ͞API͸׬੒ͨ͠

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ͳͥAPIΛ࡞ͬͨͷ͔ • Application Interface • ͭ·ΓAPIΛ༻ҙ͢Ε͹͍ΖΜͳͱ͜Ζ͔Β࢖͑Δ • Web,εϚϗ,HomeܥσόΠε

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ࠓճͷߏ੒ • API • Kotlin+KtorΛRaspberryPi্Ͱಈ͔͢ʢࣗ୐಺ʣ • ΫϥΠΞϯτ • Webϒϥ΢βʢૉHTMLʣ • AndroidΞϓϦʢेീ൪ʣ • Google Home miniʢࣗ୐಺ʣ ※DDNSΛ࢖ͬͯࣗ୐֎͔Β΋APIʹΞΫηεՄೳ

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ྑ͍఺ • ͓͏ͪͷ͋Ε͜Εʹର͢ΔೖྗͷΠϯλʔϑΣʔε͕૿͑ͨ • εϚϗࣾձͳݱ୅ʹͽͬͨΓ • ೖྗΠϯλʔϑΣʔε͕ଟ͍ʹӽͨ͜͠ͱ͸ͳ͍࠷ߴ • ͳΜͳΒcurlͰՈిૢ࡞Ͱ͖Δ • ͓͏ͪͷ͋Ε͜ΕΛҰݩ؅ཧͰ͖Δͷ͸ྑ͍ • APIΛ࡞Δೳྗ͸ؒҧ͍ͳ্͕͘Δ

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ྑ͘ͳ͍఺ • ͳΜ͔RasPi͕ࢮΜͩΓϓϩηε͕ࢮΜͩΓ͢Δ • MackerelͰࢮ׆؂ࢹ͍ͯ͠Δ • ঢ়ଶΛRasPiʹ΋ͨͤ͗͢Δͱࠓ౓͸ਖ਼نͷϦϞίϯ͔Βૢ࡞ Λͨ͘͠ͳ͘ͳΔ • APIΛհ͞ͳ͍ͷͰঢ়ଶ؅ཧ͕໘౗ʹͳΔ

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ࠓޙ΍Γ͍ͨ͜ͱ • ࠓ͸RESTfulAPIͳͷͰGraphQLʹͨ͠Γ͍ͨ͠ɻ • WebUI࡞Γ͍ͨ • Թ౓ͱ͔֎෦ͷՈిૢ࡞ɺऔಘʹ͍ΖΜͳόΠφϦ͕ґଘͯ͠ ΔͷͰDockerͱ͔ͰυΧυΧ͍ͨ͠

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࣮ࡍʹى͖ͨා͍࿩

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ͦͷ̍ ͳΜ͔͍Ζ͍Ζ഑ઢͯͨ͠ΒLED͕ ম͖͖Εͨ

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ిؾͷษڧΛ͔ͬ͠Γ͠·͠ΐ͏

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ͦͷ̎ ͳΜ͔উखʹPC͕෇͍ͨΓϥδΦ ͕෇͍ͨΓ͢Δոحݱ৅

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https://twitter.com/rombulow/status/990684453734203392

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Կ͕ى͖ͨͷ͔ • GETͰτάϧͳϦΫΤετΛ࣮૷͢Δ • ςϨϏʹGET → ిݯONͳΒOFF OFFͳΒON • Chromeͷ৽نλϒ։͍ͨͱ͖ͷ࠷ۙ։͍ͨϖʔδʹAPI࢖ ͏ϖʔδ͕͋ΔͱGET͕ϦΫΤετ͞ΕΔ

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HTTPΛཧղͤΑ HTTPͷGET͸ႈ౳ʹ͢Δ΂͖Ͱ ͋ͬͯɺ෭࡞༻Λ΋ͨͤΔͱ Googleͱ͔ͷBOTͱ͔ͷΫϩʔϥ ͕͓Ոʹ৵ೖͯ͘͠Δ

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ͱ͸͍͑ΊͪΌΜ͜ศརͩ͠ ݱ୅Google Homeͱ͔͋ΔͷͰ ΈΜͳ΍Ζ͏ ͓ΘΓ