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
480
略解 The Navigation Architecture Component
yagi2
1
210
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
430
Other Decks in Programming
See All in Programming
コード書くの好きな人向けAIコーディング活用tips #orestudy
77web
3
310
Cline指示通りに動かない? AI小説エージェントで学ぶ指示書の書き方と自動アップデートの仕組み
kamomeashizawa
1
500
Select API from Kotlin Coroutine
jmatsu
1
150
関数型まつりレポート for JuliaTokai #22
antimon2
0
110
アンドパッドの Go 勉強会「 gopher 会」とその内容の紹介
andpad
0
210
Go Modules: From Basics to Beyond / Go Modulesの基本とその先へ
kuro_kurorrr
0
120
PT AI без купюр
v0lka
0
230
関数型まつり2025登壇資料「関数プログラミングと再帰」
taisontsukada
2
810
技術懸念に立ち向かい 法改正を穏便に乗り切った話
pop_cashew
0
1.4k
Bytecode Manipulation 으로 생산성 높이기
bigstark
1
340
複数アプリケーションを育てていくための共通化戦略
irof
10
3.9k
XSLTで作るBrainfuck処理系
makki_d
0
200
Featured
See All Featured
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
161
15k
Writing Fast Ruby
sferik
628
61k
Why Our Code Smells
bkeepers
PRO
337
57k
Building Flexible Design Systems
yeseniaperezcruz
328
39k
Gamification - CAS2011
davidbonilla
81
5.3k
Fantastic passwords and where to find them - at NoRuKo
philnash
51
3.3k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
47
2.8k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
29
1.8k
Statistics for Hackers
jakevdp
799
220k
Reflections from 52 weeks, 52 projects
jeffersonlam
351
20k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
48
5.4k
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!