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Application development with
AWS Lambda and Kotlin
2021.04.05 Kotlin Tech Talk #merpay_techtalk
Hiroyuki Kusu ( @hkusu_ )
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About me
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https://aws.amazon.com/jp/lambda/
ݱ࣌Ͱ Java Java 8 ͱ Java 11 ͕͑Δ
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"1*(BUFXBZ
)551
ఆظ࣮ߦ
-BNCEB+BWB,PUMJO
ͷΤίγεςϜ
*P5
4/4 4
%ZOBNP%#
"84ϦιʔεΛར༻
)551
ҙͷαʔϏεΛར༻
ʢ(JU)VC"1*
4MBDL"1*
FUDʣ
"84Ϧιʔε͔Βىಈ
)551Ͱىಈ
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"1*(BUFXBZ
)551
ఆظ࣮ߦ
-BNCEB+BWB,PUMJO
ͷΤίγεςϜ
*P5
4/4 4
%ZOBNP%#
"84ϦιʔεΛར༻
)551
ҙͷαʔϏεΛར༻
ʢ(JU)VC"1*
4MBDL"1*
FUDʣ
"84Ϧιʔε͔Βىಈ
)551Ͱىಈ
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"1*(BUFXBZ
)551
ఆظ࣮ߦ
-BNCEB+BWB,PUMJO
ͷΤίγεςϜ
*P5
4/4 4
%ZOBNP%#
"84ϦιʔεΛར༻
)551
ҙͷαʔϏεΛར༻
ʢ(JU)VC"1*
4MBDL"1*
FUDʣ
"84Ϧιʔε͔Βىಈ
)551Ͱىಈ
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"1*(BUFXBZ
)551
ఆظ࣮ߦ
-BNCEB+BWB,PUMJO
ͷΤίγεςϜ
*P5
4/4 4
%ZOBNP%#
"84ϦιʔεΛར༻
)551
ҙͷαʔϏεΛར༻
ʢ(JU)VC"1*
4MBDL"1*
FUDʣ
"84Ϧιʔε͔Βىಈ
)551Ͱىಈ
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"1*(BUFXBZ
)551
ఆظ࣮ߦ
-BNCEB+BWB,PUMJO
ͷΤίγεςϜ
*P5
4/4 4
%ZOBNP%#
"84ϦιʔεΛར༻
)551
ҙͷαʔϏεΛར༻
ʢ(JU)VC"1*
4MBDL"1*
FUDʣ
"84Ϧιʔε͔Βىಈ
)551Ͱىಈ
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"1*(BUFXBZ
)551
ఆظ࣮ߦ
-BNCEB+BWB,PUMJO
ͷΤίγεςϜ
*P5
4/4 4
%ZOBNP%#
"84ϦιʔεΛར༻
)551
ҙͷαʔϏεΛར༻
ʢ(JU)VC"1*
4MBDL"1*
FUDʣ
"84Ϧιʔε͔Βىಈ
)551Ͱىಈ
͜ͷ͋ͨΓ͕͋ΕϘοτӡ༻πʔϧྨͷϗεςΟϯάڥͱͯ͠े
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IDE IntelliJ IDEA Λར༻ ( Community ൛ͳΒແঈ ) ͠ɺ
Java Kotlin ͷϓϩδΣΫτςϯϓϨʔτΛ͏ͱ࢝Ί͍͢
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task buildZip(type: Zip) {
from compileKotlin
from processResources
into('lib') {
from configurations.compileClasspath
}
}
build.dependsOn buildZip
Kotlin ͷίʔυΛϏϧυ͢Δ Gradle λεΫ
./gradlew build
Gradle ίϚϯυͰϏϧυ
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※ SAM( Serverless Application Model ) CloudFormation ͰσϓϩΠ͍͍ͯ͠Ͱ͢
ཧίϯιʔϧ
ϏϧυͰੜ͞Εͨ zip ϑΝΠϧΛ AWS ͷཧίϯιʔϧΞοϓϩʔυ
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// Kotlin
implementation “org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72”
implementation “org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.3”
// Network
implementation "com.squareup.retrofit2:retrofit:2.7.1"
implementation "com.squareup.retrofit2:converter-moshi:2.6.0"
implementation "com.squareup.moshi:moshi:1.8.0"
implementation "com.squareup.moshi:moshi-kotlin:1.8.0"
implementation “com.squareup.okhttp3:okhttp:4.3.1”
implementation “com.squareup.okhttp3:logging-interceptor:4.3.1”
// AWS
implementation 'com.amazonaws:aws-lambda-java-core:1.1.0'
※ ਵલʹ࡞ͬͨπʔϧͷίʔυ͔ΒҾ༻ͨ͠ͷͰ֤όʔδϣϯͪΐͬͱݹ͍Ͱ͢..
ҙͷϥΠϒϥϦ͕ར༻Ͱ͖Δ
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// Kotlin
implementation “org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72”
implementation “org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.3”
// Network
implementation "com.squareup.retrofit2:retrofit:2.7.1"
implementation "com.squareup.retrofit2:converter-moshi:2.6.0"
implementation "com.squareup.moshi:moshi:1.8.0"
implementation "com.squareup.moshi:moshi-kotlin:1.8.0"
implementation “com.squareup.okhttp3:okhttp:4.3.1”
implementation “com.squareup.okhttp3:logging-interceptor:4.3.1”
// AWS
implementation 'com.amazonaws:aws-lambda-java-core:1.1.0'
※ ਵલʹ࡞ͬͨπʔϧͷίʔυ͔ΒҾ༻ͨ͠ͷͰ֤όʔδϣϯͪΐͬͱݹ͍Ͱ͢..
ҙͷϥΠϒϥϦ͕ར༻Ͱ͖Δ
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package io.github.hkusu.githubrepositoryreport
import com.amazonaws.services.lambda.runtime.Context
import com.amazonaws.services.lambda.runtime.RequestHandler
class Handler : RequestHandler {
override fun handleRequest(input: Input, context: Context): Output {
// do something ...
return Output(statusCode = 200, body = "OK")
}
}
// API Gateway ͷ Lambda ϓϩΩγ౷߹ͷ߹
data class Input(var body: String? = null) // varͰσϑΥϧτ͕ඞཁ
data class Output(val statusCode: Int, val body: String)
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package io.github.hkusu.githubrepositoryreport
import com.amazonaws.services.lambda.runtime.Context
import com.amazonaws.services.lambda.runtime.RequestHandler
class Handler : RequestHandler {
override fun handleRequest(input: Input, context: Context): Output {
// do something ...
return Output(statusCode = 200, body = "OK")
}
}
// API Gateway ͷ Lambda ϓϩΩγ౷߹ͷ߹
data class Input(var body: String? = null) // varͰσϑΥϧτ͕ඞཁ
data class Output(val statusCode: Int, val body: String)
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package io.github.hkusu.githubrepositoryreport
import com.amazonaws.services.lambda.runtime.Context
import com.amazonaws.services.lambda.runtime.RequestHandler
class Handler : RequestHandler {
override fun handleRequest(input: Input, context: Context): Output {
// do something ...
return Output(statusCode = 200, body = "OK")
}
}
// API Gateway ͷ Lambda ϓϩΩγ౷߹ͷ߹
data class Input(var body: String? = null) // varͰσϑΥϧτ͕ඞཁ
data class Output(val statusCode: Int, val body: String)
Input().body = ""
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https://github.com/hkusu/aws-lambda-templete-for-kotlin
AWS Lambda x Kotlin ϓϩδΣΫτͷςϯϓϨʔτ
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Thank you !
@hkusu_
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API Gateway Λ͏߹ Lambda ϓϩΩγ౷߹ʹ͓ͯ͘͠ͱ
Lambda ͷೖग़ྗ͕ѻ͍͘͢ͳΔ
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Lambda ͷϋϯυϥͷઃఆྫ ( ΫϥεͷϑϧύεΛࢦఆ͢Δ )
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γʔΫϨοτͳͷڥมઃఆ