mikebroberts

Description: CloudFront Functions Demo

# This example shows how to use CloudFront, CloudFront Functions, and CloudFormation.
# In this simple example we setup CloudFront so that on any request we redirect to another site.
# While basic, this example can be expanded to provide typical redirect scenarios, based
# on the event passed to the function.

# This example written by Mike Roberts (https://twitter.com/mikebroberts), Symphonia.
# For more ideas about using AWS more effectively,see our blog at https://blog.symphonia.io/

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# CodePipeline by default runs an execution whenever any change is detected in the configured source repository
# We can use a CodePipeline Webhook resource to filter such executions.
#
# This is a snippet that would be part of a CloudFormation template containing
# a CodePipeline resource (AWS::CodePipeline::Pipeline), named CodePipeline in this case, and 
# assumes the GutHub OAuth token is available in the parameter GitHubOAuthToken.
# Typically a CodePipeline Webhook only contains the $.ref filter to check for 
# the desired branch.
# However we can add up to 4 more filters, each of which can query the incoming webhook payload from Github.
# Such payloads are of the form:

mikebroberts

#!/usr/bin/env node
import 'source-map-support/register';
import {App, Duration, Stack, StackProps} from 'aws-cdk-lib';
import {Construct} from 'constructs';
import {Code, Function, Runtime} from "aws-cdk-lib/aws-lambda";
import {StateMachine} from "aws-cdk-lib/aws-stepfunctions";
import {LambdaInvoke} from "aws-cdk-lib/aws-stepfunctions-tasks";
import {Rule, RuleTargetInput, Schedule} from "aws-cdk-lib/aws-events";
import {SfnStateMachine} from "aws-cdk-lib/aws-events-targets";

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

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(ns slack
  (:require [clj-http.client :as client]
            [clojure.data.json :as json]))

(defn send-to-slack
  "Sends a simple message to slack using an 'incoming webhook'.
   url will be of form: https://myapp.slack.com/services/hooks/incoming-webhook?token=mytoken .
   (Exact url you should use will appear on the slack integration page)
   text will be any valid message.
   This implementation could be expanded if you wanted to specify channel, username, etc.

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  AWSChatbotRole:
    Type: AWS::IAM::Role
    Properties:
      RoleName: AWSChatbotRole
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal:
              Service: 'chatbot.amazonaws.com'

mikebroberts

diff --git a/chapter5-api/template.yaml b/chapter5-api/template.yaml
index 7c6e0a5..b47084a 100755
--- a/chapter5-api/template.yaml
+++ b/chapter5-api/template.yaml
@@ -41,6 +41,13 @@ Resources:
     Properties:
       CodeUri: target/lambda.zip
       Handler: book.api.WeatherQueryLambda::handler
+      Timeout: 300
+      Layers:

mikebroberts

{
	"Records": [
		{
			"EventSubscriptionArn": "arn:aws:sns:us-east-1::ExampleTopic",
			"Sns": {
				"Type": "Notification",
				"MessageId": "95df01b4-ee98-5cb9-9903-4c221d41eb5e",
				"TopicArn": "arn:aws:sns:us-east-1:123456789012:ExampleTopic",
				"Subject": "example subject",
				"Message": "example message",

mikebroberts

package io.symphonia;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class LoggingLambda {
    // Configure our SLF4J Logger interface
    private static final Logger LOG = LoggerFactory.getLogger(LoggingLambda.class);

    public void handler(String s) {

mikebroberts

<dependencies>
  <dependency>
    <groupId>io.symphonia</groupId>
    <artifactId>lambda-logging</artifactId>
    <version>1.0.0</version>
  </dependency>
</dependencies>