Application development with AWS Lambda and Kotlin

Kotlin Tech Talk ( https://mercari.connpass.com/event/206751/ ) の資料

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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   ʣ "84Ϧιʔε͔Βىಈ )551Ͱىಈ
9. "1*
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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