mikebroberts

public String handler(String s) {
    return "Hello, " + s;
}

mikebroberts

#!/bin/bash

# Creates a Lambda and API Gateway proxying any verb on any path to lambda
#
# PREREQUISITES
#
# You must have the following installed locally: Java 8, mvn, AWS CLI
# Your AWS CLI must be configured for a user that has the necessary privileges
# You must have a basic role 'lambda_basic_execution' defined - this is what is created
# the first time you create a Lambda function in the web console

mikebroberts

package io.symphonia;

public class PojoLambda {
    public PojoResponse handlerPojo(PojoInput input) {
        return new PojoResponse("Input was " + input.c);
    }

    public static class PojoInput {
        public String c;
    }

mikebroberts

package io.symphonia;

public class MyLambda {
    public String handler(String input) {
        String message = String.format("Hello, %s!", input);
        System.out.println("Logging: message");
        return message;
    }
}

mikebroberts

package io.symphonia;

public class MyLambda {
    public void handler(String input) {
        String message = String.format("Hello, %s!", input);
        System.out.println(message);
    }
}

mikebroberts

public class MyLambda {
    public void handler(S3Put input) {
        // Execution code will go here
    }

    public static class S3Put {
        public java.util.List<S3PutRecord> Records;

        public static class S3PutRecord {
            public S3PutRecordS3 s3;

mikebroberts

public void handler(S3Put input) {
    final String key = input.Records.get(0).s3.object.key;
    System.out.println("S3 PUT happened! Key was: " + key);
}

mikebroberts

package io.symphonia;

import java.io.InputStream;
import java.io.OutputStream;

public class WhatIsMyLambdaEvent {
    public void handler(InputStream is, OutputStream os) {
        java.util.Scanner s = new java.util.Scanner(is).useDelimiter("\\A");
        System.out.println(s.hasNext() ? s.next() : "No input detected");
    }

mikebroberts

public int containerExecutionCount = 0;

public void handler(Map<String, List<S3PutRecord>> input) {
   final String key = input.get("Records").get(0).s3.object.key;
   System.out.println("S3 PUT happened! Key was: " + key);
   throw new RuntimeException("Throwing exception. This container has processed " + ++containerExecutionCount + " events");
}

mikebroberts

public class MyLambda {
    public String handler(Object input) {
        return "Hello Lambda";
    }
}