Call AWS Lambda Function by Kotlin

AwsLambdaClient.kt

class AwsLambdaClient {
    val aws_access_key_id = "<YOUR_ACCESS_KEY_PASTE_HERE>"
    val aws_secret_access_key = "<YOUR_SECRET_KEY_PASTE_HERE>"
    val region = "ap-northeast-1"
    val function_name = "test_func"
    
    fun invoke() {
        val payload = """
            {
              "token": "TOKEN",
              "client_id": "'CLIENT_ID'"
            }
        """.trimIndent()
        println(payload)
        val cp = AWSStaticCredentialsProvider(
                BasicAWSCredentials(aws_access_key_id, aws_secret_access_key))
        val client = AWSLambdaClientBuilder.standard()
                .withCredentials(cp).withRegion(region).build()
        // call lambda function
        val res = client.invoke(InvokeRequest()
                .withFunctionName(function_name)
                .withInvocationType(InvocationType.RequestResponse)
                .withPayload(payload))
        // result
        println(res.statusCode)
        println(String(res.payload.array()))
    }
}

dependencies {
    compile 'com.amazonaws:aws-java-sdk:1.11.360'
}

Use AWS SDK for Java
https://aws.amazon.com/jp/developers/getting-started/java/

lambda function
https://github.com/awslabs/aws-support-tools/blob/master/Cognito/decode-verify-jwt/decode-verify-jwt.py

Thank you,