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
970
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
2.3k
おうちにAPIを生やすお話.pdf
yagi2
0
430
略解 The Navigation Architecture Component
yagi2
1
200
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
390
Other Decks in Programming
See All in Programming
LangChainの現在とv0.3にむけて
os1ma
4
920
Rubyとクリエイティブコーディングの輪の広がり / The Growing Circle of Ruby and Creative Coding
chobishiba
1
270
今インフラ技術をイチから学び直すなら
yuhta28
1
140
GoのIteratorに詳しくなってしまう
inatonix
1
200
unique パッケージから学ぶ interning と weak reference @ Asakusa.go#3
karamaru
2
810
Scala アプリケーションのビルドを改善してデプロイ時間を 1/4 にした話 | How I improved the build of my Scala application and reduced deployment time by 4x
nomadblacky
1
180
How to Break into Reading Open Source
kaspth
2
220
Method Swizzlingを行うライブラリにおけるマルチモジュール設計
yoshikma
0
120
The Shape of a Service Object
inem
0
520
Hono・Prisma・AWSでGeoなAPI開発
nokonoko1203
5
680
オートマトン学習しろ / Do automata learning
makenowjust
3
130
Our Websites Need a Lifestyle Change, Not a Diet
ryantownsend
0
150
Featured
See All Featured
VelocityConf: Rendering Performance Case Studies
addyosmani
322
23k
Git: the NoSQL Database
bkeepers
PRO
425
64k
The Power of CSS Pseudo Elements
geoffreycrofte
71
5.3k
Fantastic passwords and where to find them - at NoRuKo
philnash
48
2.8k
Fireside Chat
paigeccino
31
2.9k
Being A Developer After 40
akosma
84
590k
Navigating Team Friction
lara
183
13k
Bootstrapping a Software Product
garrettdimon
PRO
304
110k
The Art of Programming - Codeland 2020
erikaheidi
48
13k
Optimizing for Happiness
mojombo
375
69k
A better future with KSS
kneath
235
17k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
326
21k
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!