Application development with AWS Lambda and Kotlin

Transcript

1. Application development with AWS Lambda and Kotlin 2021.04.05 Kotlin Tech

   Talk #merpay_techtalk Hiroyuki Kusu ( @hkusu_ )

2. About me

3. https://aws.amazon.com/jp/lambda/ ݱ࣌఺Ͱ͸ Java ͸ Java 8 ͱ Java 11 ͕࢖͑Δ

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   ͷΤίγεςϜ *P5 4/4 4 %ZOBNP%#

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   ʣ "84Ϧιʔε͔Βىಈ )551Ͱىಈ

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   ʣ "84Ϧιʔε͔Βىಈ )551Ͱىಈ

6. "1*
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   ͷΤίγεςϜ *P5 4/4 4 %ZOBNP%#

   "84ϦιʔεΛར༻ )551 ೚ҙͷαʔϏεΛར༻
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7. "1*
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   "1*
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   ʣ "84Ϧιʔε͔Βىಈ )551Ͱىಈ

8. "1*
   (BUFXBZ )551 ఆظ࣮ߦ -BNCEB
   
   +BWB,PUMJO
   ͷΤίγεςϜ *P5 4/4 4 %ZOBNP%#

   "84ϦιʔεΛར༻ )551 ೚ҙͷαʔϏεΛར༻
   ʢ
   (JU)VC
   "1*
   4MBDL
   "1*
   FUD
   ʣ "84Ϧιʔε͔Βىಈ )551Ͱىಈ

9. "1*
   (BUFXBZ )551 ఆظ࣮ߦ -BNCEB
   
   +BWB,PUMJO
   ͷΤίγεςϜ *P5 4/4 4 %ZOBNP%#

   "84ϦιʔεΛར༻ )551 ೚ҙͷαʔϏεΛར༻
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10. IDE ͸ IntelliJ IDEA Λར༻ ( Community ൛ͳΒແঈ ) ͠ɺ

    Java ΍ Kotlin ͷϓϩδΣΫτςϯϓϨʔτΛ࢖͏ͱ࢝Ί΍͍͢

11. task buildZip(type: Zip) { from compileKotlin from processResources into('lib') {

    from configurations.compileClasspath } } build.dependsOn buildZip Kotlin ͷίʔυΛϏϧυ͢Δ Gradle λεΫ ./gradlew build Gradle ίϚϯυͰϏϧυ

12. ※ SAM( Serverless Application Model ) ΍ CloudFormation ͰσϓϩΠͯ͠΋͍͍Ͱ͢ ؅ཧίϯιʔϧ

    ϏϧυͰੜ੒͞Εͨ zip ϑΝΠϧΛ AWS ͷ؅ཧίϯιʔϧ΁Ξοϓϩʔυ

13. // 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' ※ ਵ෼લʹ࡞ͬͨπʔϧͷίʔυ͔ΒҾ༻ͨ͠ͷͰ֤όʔδϣϯ͸ͪΐͬͱݹ͍Ͱ͢.. ೚ҙͷϥΠϒϥϦ͕ར༻Ͱ͖Δ

14. // 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' ※ ਵ෼લʹ࡞ͬͨπʔϧͷίʔυ͔ΒҾ༻ͨ͠ͷͰ֤όʔδϣϯ͸ͪΐͬͱݹ͍Ͱ͢.. ೚ҙͷϥΠϒϥϦ͕ར༻Ͱ͖Δ

15. package io.github.hkusu.githubrepositoryreport import com.amazonaws.services.lambda.runtime.Context import com.amazonaws.services.lambda.runtime.RequestHandler class Handler : RequestHandler<Input,

    Output> { 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) // varͰσϑΥϧτ஋͕ඞཁ data class Output(val statusCode: Int, val body: String)

16. package io.github.hkusu.githubrepositoryreport import com.amazonaws.services.lambda.runtime.Context import com.amazonaws.services.lambda.runtime.RequestHandler class Handler : RequestHandler<Input,

    Output> { 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) // varͰσϑΥϧτ஋͕ඞཁ data class Output(val statusCode: Int, val body: String)

17. package io.github.hkusu.githubrepositoryreport import com.amazonaws.services.lambda.runtime.Context import com.amazonaws.services.lambda.runtime.RequestHandler class Handler : RequestHandler<Input,

    Output> { 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) // varͰσϑΥϧτ஋͕ඞཁ data class Output(val statusCode: Int, val body: String) Input().body = "<JSONจࣈྻ>"

18. https://github.com/hkusu/aws-lambda-templete-for-kotlin AWS Lambda x Kotlin ϓϩδΣΫτͷςϯϓϨʔτ

19. Thank you ! @hkusu_

20. ෇࿥

21. API Gateway Λ࢖͏৔߹͸ Lambda ϓϩΩγ౷߹ʹ͓ͯ͘͠ͱ Lambda ͷೖग़ྗ͕ѻ͍΍͘͢ͳΔ

22. Lambda ͷϋϯυϥͷઃఆྫ ( ΫϥεͷϑϧύεΛࢦఆ͢Δ )

23. γʔΫϨοτͳ΋ͷ͸؀ڥม਺΁ઃఆ