Handler

A typical RequestHandler looks like below:

package com.packt.serverless.kotlin.greeter

import com.amazonaws.services.lambda.runtime.Context
import com.amazonaws.services.lambda.runtime.RequestHandler

class Handler:RequestHandler<String,String> {
  override fun handleRequest(input:String, context:Context):String {
      return "Hello, $input from Kotlin"
  }

}

Few points to note about the preceding code:

• With the above structure the handler that should be configured becomes com.packt,serverless.kotlin.greeter.Handler::handleRequest
• The handler is configured so that it receives a string object and returns a string object