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torͰ͓͏ͪAPI
ɹΛϦϓϨʔεͨ͠
2017/12/18 CA.kt #5 @େࡕ
Itsuki AOYAGI
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͍͋ͭ͝͞ - ࣗݾհ -
• ໊લ : ੨༄ थ Itsuki AOYAGIʢ23ʣ
a.k.a ͗ʹ͍
• AndroidΞϓϦΤϯδχΞ
• Kotlinྺ :
• Twitter : @yaginier
• GitHub etc… : @yagi2 / @yagi21
• ͓͏͍͖ͪͩ͢
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͍͋ͭ͝͞ - ࣗݾհ -
• ໊લ : ੨༄ थ Itsuki AOYAGIʢ23ʣ
a.k.a ͗ʹ͍
• AndroidΞϓϦΤϯδχΞ
• Kotlinྺ :
• Twitter : @yaginier
• GitHub etc… : @yagi2 / @yagi21
• ͓͏͍͖ͪͩ͢
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͓͏ͪϋοΫͯ͠·͔͢ʁ
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͓͏ͪϋοΫ
͓͏ͪΛΑΓշదͳͷʹ͢ΔͨΊʹ
ΨδΣοταʔϏεΛΈ߹Θͤͯ
ϋοϐʔʹ͢ΔͨΊͷ͋Ε͜Ε ɻ
࠷ۙͩͱεϚʔτεϐʔΧʔ͕͍ͬͺ͍͋ΔͷͰ
ͦΕΒܦ༝ͰՈిͱ͔Λૢ࡞Ͱ͖Δɻ
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͓͏ͪϋοΫ - զ͕Ո -
ɾRaspberry Piʢॳʣ
ɹˠ ͓͏ͪAPI͕͍͑ͯΔʢPHPʣ
ɹɹˠ ϒϥβ͔ΒHTTPSܦ༝ͯ͠ϖʔδ͔Βୟ͘
ɹɹˠ ࣗ࡞ͷAndroidΞϓϦ͔ΒϦΫΤετ
Ұྫ
ɾࣗͷσεΫτοϓPCͷిݯΛ֎͔ΒೖΕΔ
ɾΤΞίϯɺςϨϏͷ֎ઢͰૢ࡞͢ΔՈిͷૢ࡞
ɾϥδΦʢRasPiΛrtmpετϦʔϛϯάͬͯϥδΦʹ͍ͯͨ͠ʣ
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͓͏ͪϋοΫ - զ͕Ո -
ɾRaspberry Piʢॳʣ
ɹˠ ͓͏ͪAPI͕͍͑ͯΔʢPHPʣ
ɹɹˠ ϒϥβ͔ΒHTTPSܦ༝ͯ͠ϖʔδ͔Βୟ͘
ɹɹˠ ࣗ࡞ͷAndroidΞϓϦ͔ΒϦΫΤετ
Ұྫ
ɾࣗͷσεΫτοϓPCͷిݯΛ֎͔ΒೖΕΔ
ɾΤΞίϯɺςϨϏͷ֎ઢͰૢ࡞͢ΔՈిͷૢ࡞
ɾϥδΦʢRasPiΛrtmpετϦʔϛϯάͬͯϥδΦʹ͍ͯͨ͠ʣ
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͓͏ͪϋοΫ - զ͕Ո -
ɾRaspberry Piʢॳʣ
ɹˠ ͓͏ͪAPI͕͍͑ͯΔʢPHPʣ
ɹɹˠ ϒϥβ͔ΒHTTPSܦ༝ͯ͠ϖʔδ͔Βୟ͘
ɹɹˠ ࣗ࡞ͷAndroidΞϓϦ͔ΒϦΫΤετ
Ұྫ
ɾࣗͷσεΫτοϓPCͷిݯΛ֎͔ΒೖΕΔ
ɾΤΞίϯɺςϨϏͷ֎ઢͰૢ࡞͢ΔՈిͷૢ࡞
ɾϥδΦʢRasPiΛrtmpετϦʔϛϯάͬͯϥδΦʹ͍ͯͨ͠ʣ
͍ͭ͜ΛKotlinʹॻ͖͑Δ
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αʔόʔαΠυ Kotlin
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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.
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Ktor
fun main(args: Array) {
embeddedServer(Netty, 8080) {
routing {
get("/") {
call.respondText("Hello, world!", ContentType.Text.Html)
}
}
}.start(wait = true)
}
ɾബ͗ͯ͢README͕͍
ɹɹɹɹউखͳΠϝʔδ
ɹɹɹɹɹɹɹSpringBoot → Ruby on Rails
ɹɹɹɹɹɹɹKtor → Sinatra
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Ktor - WoL API -
KtorΛͬͯɺࣗPCͷిݯΛ֎͔ΒೖΕΔAPIΛॻ͖͢
ݱࡏͷ༷
ɾΫϥΠΞϯτPOSTͰରͷMacΞυϨεΛ͛Δ
ɾαʔόʔड͚औͬͨΒͦͷMacΞυϨεʹରͯ͠WoL͢Δ
ɹʢexecͰwakeonlanίϚϯυΛୟ͍͍ͯΔʣ
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Ktor - WoL API -
KtorΛͬͯɺࣗPCͷిݯΛ֎͔ΒೖΕΔAPIΛॻ͖͢
৽͍༷͠
ɾΫϥΠΞϯτPOSTͰରͷϗετ໊Λ͛Δ
ɹˠ ϗετ໊ͦΕʹ४ͣΔͷʢཧ༝ޙड़ʣΛ͛Δ
ɹˠ DBαʔόʔଆͰϗετ໊ͱMacΞυϨεΛ͓͍࣋ͬͯͯࢀর
ɾαʔόʔड͚औͬͨΒରʹରͯ͠WoL͢Δ
ɹ͔ͤͬ͘ͳͷͰϚδοΫύέοτૹ৴Λ࣮͢Δ
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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༻
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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༻
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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) : IntEntity(id) {
companion object : IntEntityClass(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()
}
}
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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༻
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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()
}
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ʂ
ͨ͠ͷͰɺGoogleHome͔Β͑ΔΑ͏ʹ͢Δ
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Google Home + IFTTT
Google HomeͷԻίϚϯυͰIFTTTͷτϦΨʔΛୟ͍ͯ
IFTTTWebHookͰ͓ՈAPIʹPOST͢Δ
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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
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Google Home + IFTTT
object Computers : IntIdTable() {
val hostName = varchar("hostname", 50).index()
val macAddr = varchar("mac_addr", 50)
}
class Computer(id: EntityID) : IntEntity(id) {
companion object : IntEntityClass(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) : IntEntity(id) {
companion object : IntEntityClass(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()
}
}
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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✨
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Google Home + IFTTT
ҙ
ʮͶ͐ɺGoogle ͏ͪͷ͜ͻͳͨΛىͯ͜͠ʯ
→ ͬͯ͘Δ໊લ͕ʮ͜ ͻͳ ͨʯ
ʮͶ͐ɺGoogle ͏ͪͷͪΌͪΌΛىͯ͜͠ʯ
→ ͬͯ͘Δ໊લ͕ʮʑʯ
ղܾࡦ
→ 1ճࢼͯ͠Կ͕ͬͯ͘Δͷ͔ΛݟΔ
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ຊͷ͓͠ͳ͕͖
ɾAPI
ɹˠ https://github.com/yagi2/Kaya
ɾKtor
ɹˠ https://github.com/ktorio/ktor
ɾExposed
ɹˠ https://github.com/JetBrains/Exposed
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Have a Nice Kotlin!