prestomation

//Using Document Client
var params = {
    Item: {
        hashkey: 'key',
        boolAttr: true,
        listAttr: [1, 'baz', true]
        mapAttr: {
            foo: 'bar'
        }
    },

prestomation

//Using low-level API Client
var params = {
    Item: {
        hashkey: { "S" : "key"},
        boolAttr: { "B" : "true" },
        listAttr: { "L" :  [{ "N" : 1}, { "S":'baz'}, { B: "true" }]}
        mapAttr: {
            M : {
              "foo": { "S" : "bar"}
        }

prestomation

{
  “userId” : {  
    “S” : “$MY_USER_ID”
  },
  “accountBalance” : {
    “N” : “0”
  }
}

prestomation

var presignIOTMQTTConnection  = function(endpoint, credentials) {
	//Turn off param validation because of the hackery coming up
	var service = new AWS.IotData({endpoint : endpoint, credentials : credentials, paramValidation: false});

	//MQTT broker uses a different servicename in the sigv4 algo
	service.api.signingName = "iotdevicegateway";

	//1. Create a request object for another, sorta similar request
	//2. Save off our session token and delete it from the credentials(so it doesn't get signed)
	//3. Register to an event in the state machine to adjust the path

prestomation

  /**
   * utilities to do sigv4
   * @class SigV4Utils
   */
  function SigV4Utils() {}

SigV4Utils.getSignatureKey = function (key, date, region, service) {
    var kDate = AWS.util.crypto.hmac('AWS4' + key, date, 'buffer');
    var kRegion = AWS.util.crypto.hmac(kDate, region, 'buffer');
    var kService = AWS.util.crypto.hmac(kRegion, service, 'buffer');

prestomation

				//Turn off param validation because of the hackery coming up
				var service = new AWS.IotData({endpoint : "data.iot.us-east-1.amazonaws.com", credentials : credentials, paramValidation : false});
				
				//MQTT broker uses a different servicename in the sigv4 algo
				service.api.signingName = "iotdevicegateway";
				
				//Connecting to MQTT isn't actually a published operation.
				//soooo Let's copy another GET request for some hackery..
				var connect = $.extend(true, {}, service.api.operations.getThingShadow);
				//..change the path

prestomation

Resources:
    CrashingLambda:
        Type: AWS::Lambda::Function
        Properties: 
          Code:
            ZipFile: >
              exports.handler = function(event, context) {
                 FunctionDoesntExist(); 
              };
          Handler: index.handler

prestomation

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "dynamodb:GetItem",
        "dynamodb:BatchGetItem",
        "dynamodb:Query",
        "dynamodb:PutItem",