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

#!/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

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

mikebroberts

<dependency>
  <groupId>com.amazonaws</groupId>
  <artifactId>aws-lambda-java-core</artifactId>
  <version>1.1.0</version>
  <scope>provided</scope>
</dependency>

mikebroberts

package io.symphonia;

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

import java.util.HashMap;
import java.util.Map;

public class ContextLambda {
    public Map<String,Object> handler (Object input, Context context) {
        Map<String, Object> toReturn = new HashMap<>();

mikebroberts

package io.symphonia;

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

public class StreamLambda {
    public void handlerStream(InputStream inputStream, OutputStream outputStream) throws IOException {
        int letter;
        while((letter = inputStream.read()) != -1)

mikebroberts

public Object handleRequest(S3Event input) {
	// …
}

mikebroberts

package io.symphonia;

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

    public static class PojoInput {
        private String a;

mikebroberts

package io.symphonia;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class ListMapLambda {
    public List<Integer> handlerList(List<Integer> input) {
        List<Integer> newList = new ArrayList<>();

mikebroberts

package io.symphonia;

public class StringIntegerBooleanLambda {
    public String handlerString(String s) {
        return "Hello, " + s;
    }

    public int handlerInt(int input) {
        return 100 + input;
    }