Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
KtorでおうちAPIをリプレースした話
Search
yagi2
December 18, 2017
Programming
1
1.1k
KtorでおうちAPIをリプレースした話
2017/12/18 CA.kt #5 @大阪 LT
yagi2
December 18, 2017
Tweet
Share
More Decks by yagi2
See All by yagi2
Kotlin DSLを理解してみる / Understanding Kotlin DSL
yagi2
4
2.5k
おうちにAPIを生やすお話.pdf
yagi2
0
490
略解 The Navigation Architecture Component
yagi2
1
220
10分で完全に(雰囲気を)理解するマテリアルデザイン
yagi2
1
440
Other Decks in Programming
See All in Programming
Porting a visionOS App to Android XR
akkeylab
0
470
LT 2025-06-30: プロダクトエンジニアの役割
yamamotok
0
760
レベル1の開発生産性向上に取り組む − 日々の作業の効率化・自動化を通じた改善活動
kesoji
0
220
PHP 8.4の新機能「プロパティフック」から学ぶオブジェクト指向設計とリスコフの置換原則
kentaroutakeda
2
910
効率的な開発手段として VRTを活用する
ishkawa
0
140
Hack Claude Code with Claude Code
choplin
4
2.1k
初学者でも今すぐできる、Claude Codeの生産性を10倍上げるTips
s4yuba
16
11k
Result型で“失敗”を型にするPHPコードの書き方
kajitack
5
880
ペアプロ × 生成AI 現場での実践と課題について / generative-ai-in-pair-programming
codmoninc
2
18k
第9回 情シス転職ミートアップ 株式会社IVRy(アイブリー)の紹介
ivry_presentationmaterials
1
320
High-Level Programming Languages in AI Era -Human Thought and Mind-
hayat01sh1da
PRO
0
780
VS Code Update for GitHub Copilot
74th
2
650
Featured
See All Featured
Designing for Performance
lara
610
69k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
34
3.1k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
656
60k
Code Reviewing Like a Champion
maltzj
524
40k
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
44
2.4k
Learning to Love Humans: Emotional Interface Design
aarron
273
40k
Side Projects
sachag
455
42k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
53k
What’s in a name? Adding method to the madness
productmarketing
PRO
23
3.5k
KATA
mclloyd
30
14k
Navigating Team Friction
lara
187
15k
How GitHub (no longer) Works
holman
314
140k
Transcript
torͰ͓͏ͪAPI ɹΛϦϓϨʔεͨ͠ 2017/12/18 CA.kt #5 @େࡕ Itsuki AOYAGI
͍͋ͭ͝͞ - ࣗݾհ - • ໊લ : ੨༄ थ Itsuki
AOYAGIʢ23ʣ a.k.a ͗ʹ͍ • AndroidΞϓϦΤϯδχΞ • Kotlinྺ : • Twitter : @yaginier • GitHub etc… : @yagi2 / @yagi21 • ͓͏͍͖ͪͩ͢
͍͋ͭ͝͞ - ࣗݾհ - • ໊લ : ੨༄ थ Itsuki
AOYAGIʢ23ʣ a.k.a ͗ʹ͍ • AndroidΞϓϦΤϯδχΞ • Kotlinྺ : • Twitter : @yaginier • GitHub etc… : @yagi2 / @yagi21 • ͓͏͍͖ͪͩ͢
͓͏ͪϋοΫͯ͠·͔͢ʁ
͓͏ͪϋοΫ ͓͏ͪΛΑΓշదͳͷʹ͢ΔͨΊʹ ΨδΣοταʔϏεΛΈ߹Θͤͯ ϋοϐʔʹ͢ΔͨΊͷ͋Ε͜Ε ɻ ࠷ۙͩͱεϚʔτεϐʔΧʔ͕͍ͬͺ͍͋ΔͷͰ ͦΕΒܦ༝ͰՈిͱ͔Λૢ࡞Ͱ͖Δɻ
͓͏ͪϋοΫ - զ͕Ո - ɾRaspberry Piʢॳʣ ɹˠ ͓͏ͪAPI͕͍͑ͯΔʢPHPʣ ɹɹˠ ϒϥβ͔ΒHTTPSܦ༝ͯ͠ϖʔδ͔Βୟ͘
ɹɹˠ ࣗ࡞ͷAndroidΞϓϦ͔ΒϦΫΤετ Ұྫ ɾࣗͷσεΫτοϓPCͷిݯΛ֎͔ΒೖΕΔ ɾΤΞίϯɺςϨϏͷ֎ઢͰૢ࡞͢ΔՈిͷૢ࡞ ɾϥδΦʢRasPiΛrtmpετϦʔϛϯάͬͯϥδΦʹ͍ͯͨ͠ʣ
͓͏ͪϋοΫ - զ͕Ո - ɾRaspberry Piʢॳʣ ɹˠ ͓͏ͪAPI͕͍͑ͯΔʢPHPʣ ɹɹˠ ϒϥβ͔ΒHTTPSܦ༝ͯ͠ϖʔδ͔Βୟ͘
ɹɹˠ ࣗ࡞ͷAndroidΞϓϦ͔ΒϦΫΤετ Ұྫ ɾࣗͷσεΫτοϓPCͷిݯΛ֎͔ΒೖΕΔ ɾΤΞίϯɺςϨϏͷ֎ઢͰૢ࡞͢ΔՈిͷૢ࡞ ɾϥδΦʢRasPiΛrtmpετϦʔϛϯάͬͯϥδΦʹ͍ͯͨ͠ʣ
͓͏ͪϋοΫ - զ͕Ո - ɾRaspberry Piʢॳʣ ɹˠ ͓͏ͪAPI͕͍͑ͯΔʢPHPʣ ɹɹˠ ϒϥβ͔ΒHTTPSܦ༝ͯ͠ϖʔδ͔Βୟ͘
ɹɹˠ ࣗ࡞ͷAndroidΞϓϦ͔ΒϦΫΤετ Ұྫ ɾࣗͷσεΫτοϓPCͷిݯΛ֎͔ΒೖΕΔ ɾΤΞίϯɺςϨϏͷ֎ઢͰૢ࡞͢ΔՈిͷૢ࡞ ɾϥδΦʢRasPiΛrtmpετϦʔϛϯάͬͯϥδΦʹ͍ͯͨ͠ʣ ͍ͭ͜ΛKotlinʹॻ͖͑Δ
αʔόʔαΠυ Kotlin
αʔόʔαΠυKotlin ɾSpring Boot ɹҎલKotlin + Spring BootͰJSONΛు͘APIΛ࡞ͬͨ͜ͱ͕͋Δ ɹ ͦͷ࣌ͷϒϩά →
KotlinͱSpring BootΛͬͯαΫοͱୟ͚ΔAPIΛ࡞Δ ɾKotr ɹΊͬͪΌബ͍ ɹ ɹKtor is a framework for quickly creating web applications in Kotlin with minimal effort.
Ktor fun main(args: Array<String>) { embeddedServer(Netty, 8080) { routing {
get("/") { call.respondText("Hello, world!", ContentType.Text.Html) } } }.start(wait = true) } ɾബ͗ͯ͢README͕͍ ɹɹɹɹউखͳΠϝʔδ ɹɹɹɹɹɹɹSpringBoot → Ruby on Rails ɹɹɹɹɹɹɹKtor → Sinatra
Ktor - WoL API - KtorΛͬͯɺࣗPCͷిݯΛ֎͔ΒೖΕΔAPIΛॻ͖͢ ݱࡏͷ༷ ɾΫϥΠΞϯτPOSTͰରͷMacΞυϨεΛ͛Δ ɾαʔόʔड͚औͬͨΒͦͷMacΞυϨεʹରͯ͠WoL͢Δ ɹʢexecͰwakeonlanίϚϯυΛୟ͍͍ͯΔʣ
Ktor - WoL API - KtorΛͬͯɺࣗPCͷిݯΛ֎͔ΒೖΕΔAPIΛॻ͖͢ ৽͍༷͠ ɾΫϥΠΞϯτPOSTͰରͷϗετ໊Λ͛Δ ɹˠ ϗετ໊ͦΕʹ४ͣΔͷʢཧ༝ޙड़ʣΛ͛Δ
ɹˠ DBαʔόʔଆͰϗετ໊ͱMacΞυϨεΛ͓͍࣋ͬͯͯࢀর ɾαʔόʔड͚औͬͨΒରʹରͯ͠WoL͢Δ ɹ͔ͤͬ͘ͳͷͰϚδοΫύέοτૹ৴Λ࣮͢Δ
Ktor - WoL API - install(Routing) { post("/wol") { val
name = call.receiveParameters()[“name”] val host = ϗετΛDB͔Βݕࡧ(name) if (host == null) { call.respond("ݟ͔ͭΒͳ͔ͬͨ") } else { try { WakeOnLan(host.macAddr).sendMagicPacket() call.respond("ૹͬͨ") } catch (e: IOException) { call.respond("ૹΔͷʹࣦഊͨ͠") } } } ɾPOSTͰड͚औͬͯϚδοΫύέοτΛૹΔ ɹˠ Ͳͷϗετʹରͯ͠ϚδοΫύέοτΛૹΔͷ͔ύϥϝʔλͰ ɹˠ DBʹExposed + MySQLΛ༻
Ktor - WoL API - install(Routing) { post("/wol") { val
name = call.receiveParameters()[“name”] val host = ϗετΛDB͔Βݕࡧ(name) if (host == null) { call.respond("ݟ͔ͭΒͳ͔ͬͨ") } else { try { WakeOnLan(host.macAddr).sendMagicPacket() call.respond("ૹͬͨ") } catch (e: IOException) { call.respond("ૹΔͷʹࣦഊͨ͠") } } } ɾPOSTͰड͚औͬͯϚδοΫύέοτΛૹΔ ɹˠ Ͳͷϗετʹରͯ͠ϚδοΫύέοτΛૹΔͷ͔ύϥϝʔλͰ ɹˠ DBʹExposed + MySQLΛ༻
Ktor - WoL API - install(Routing) { post("/wol") { val
name = call.receiveParameters()[“name”] val host = ϗετΛDB͔Βݕࡧ(name) if (host == null) { call.respond("ݟ͔ͭΒͳ͔ͬͨ") } else { try { WakeOnLan(host.macAddr).sendMagicPacket() call.respond("ૹͬͨ") } catch (e: IOException) { call.respond("ૹΔͷʹࣦഊͨ͠") } } } ɾPOSTͰड͚औͬͯϚδοΫύέοτΛૹΔ ɹˠ Ͳͷϗετʹରͯ͠ϚδοΫύέοτΛૹΔͷ͔ύϥϝʔλͰ ɹˠ DBʹExposed + MySQLΛ༻ object Computers : IntIdTable() { val hostName = varchar("hostname", 50).index() val macAddr = varchar("mac_addr", 50) } class Computer(id: EntityID<Int>) : IntEntity(id) { companion object : IntEntityClass<Computer>(Computers) var hostname by Computers.hostName var macAddr by Computers.macAddr } fun findByHostName(hostName: String?): Computer? { return transaction { Computer.find { Computers.hostName eq hostName }.firstOrNull() } }
Ktor - WoL API - install(Routing) { post("/wol") { val
name = call.receiveParameters()[“name”] val host = ϗετΛDB͔Βݕࡧ(name) if (host == null) { call.respond("ݟ͔ͭΒͳ͔ͬͨ") } else { try { WakeOnLan(host.macAddr).sendMagicPacket() call.respond("ૹͬͨ") } catch (e: IOException) { call.respond("ૹΔͷʹࣦഊͨ͠") } } } ɾPOSTͰड͚औͬͯϚδοΫύέοτΛૹΔ ɹˠ Ͳͷϗετʹରͯ͠ϚδοΫύέοτΛૹΔͷ͔ύϥϝʔλͰ ɹˠ DBʹExposed + MySQLΛ༻
Ktor - WoL API - class WakeOnLan(private val macAddress: String)
{ @Throws(IOException::class) fun sendMagicPacket() { val iNetAddress = InetAddress.getByName("255.255.255.255") val magicPacket = getMagicPacket(macAddress) DatagramSocket().send(DatagramPacket(magicPacket, magicPacket.size, iNetAddress, 8080)) } private fun getMagicPacket(macAddress: String): ByteArray { val packet = ByteArray(102) var index = 0 repeat(6) { packet[index++] = 0xFF.toByte() } val macAddressByte = getMacAddressByte(macAddress) repeat(16) { repeat(6) { packet[index++] = macAddressByte[it] } } return packet } private fun getMacAddressByte(macAddress: String): ByteArray = macAddress.split(":").map { Integer.parseInt(it, 16).toByte() }.toByteArray() }
ʂ ͨ͠ͷͰɺGoogleHome͔Β͑ΔΑ͏ʹ͢Δ
Google Home + IFTTT Google HomeͷԻίϚϯυͰIFTTTͷτϦΨʔΛୟ͍ͯ IFTTTWebHookͰ͓ՈAPIʹPOST͢Δ
Google Home + IFTTT ී௨ʹϓϩάϥϜ͔ΒPOST͢Δͱ͖ $ curl --data-urlencode "name=hoge"
http://api.example.com/wol Google Homeͩͱ”name=hoge”͕ͭΒ͍ ɹˠ ຊޠͰͷΤΠϦΞεΛ͚ͯDBͷΧϥϜʹೖΕ͓ͯ͘ ྫʣʮͶ͐ɺGoogle ͏ͪͷ͜ͱΓΛىͯ͜͠ʯ ɹɹˠ name=͜ͱΓ ɹɹˠ DB͔Βʮ͜ͱΓʯͰҰக͢ΔͷΛݕࡧͯ͠Δ
Google Home + IFTTT object Computers : IntIdTable() { val
hostName = varchar("hostname", 50).index() val macAddr = varchar("mac_addr", 50) } class Computer(id: EntityID<Int>) : IntEntity(id) { companion object : IntEntityClass<Computer>(Computers) var hostname by Computers.hostName var macAddr by Computers.macAddr } fun findByHostName(hostName: String?): Computer? { return transaction { Computer.find { Computers.hostName eq hostName }.firstOrNull() } } object Computers : IntIdTable() { val hostName = varchar("hostname", 50).index() val name = varchar("name", 50) val macAddr = varchar("mac_addr", 50) } class Computer(id: EntityID<Int>) : IntEntity(id) { companion object : IntEntityClass<Computer>(Computers) var hostname by Computers.hostName var name by Computers.name var macAddr by Computers.macAddr } fun findByHostName(hostName: String?): Computer? { return transaction { Computer.find { Computers.hostName eq hostName }.firstOrNull() } } fun findByName(name: String?): Computer? { return transaction { Computer.find { Computers.name eq name }.firstOrNull() } }
Google Home + IFTTT transaction { Computer.new { hostname =
"kotori" name = "͜ͱΓ" macAddr = “FF:FF:FF:FF:FF:FF” } } ͓Ոʹ͋ΔϚγϯΛDBʹೖΕͯ͋͛Δɻ $ curl --data-urlencode "name=kotori" http://api.example.com:/wol ʮͶ͐ɺGoogle ͓͏ͪͷ͜ͱΓΛىͯ͜͠ʯ ✨྆ํڞOK✨
Google Home + IFTTT ҙ ʮͶ͐ɺGoogle ͏ͪͷ͜ͻͳͨΛىͯ͜͠ʯ → ͬͯ͘Δ໊લ͕ʮ͜ ͻͳ
ͨʯ ʮͶ͐ɺGoogle ͏ͪͷͪΌͪΌΛىͯ͜͠ʯ → ͬͯ͘Δ໊લ͕ʮʑʯ ղܾࡦ → 1ճࢼͯ͠Կ͕ͬͯ͘Δͷ͔ΛݟΔ
ຊͷ͓͠ͳ͕͖ ɾAPI ɹˠ https://github.com/yagi2/Kaya ɾKtor ɹˠ https://github.com/ktorio/ktor ɾExposed ɹˠ https://github.com/JetBrains/Exposed
Have a Nice Kotlin!