[aws-iot-examples] add demogst

aws-iot-example/.gitignore

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+node_modules
+.serverless

aws-iot-example/README.md

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+<!--
+title: AWS Serverless IoT Event example in NodeJS
+description: This example demonstrates how to setup a AWS IoT Rule to send events to a Lambda function.
+layout: Doc
+-->
+# Serverless IoT Event
+
+This example demonstrates how to setup a AWS IoT Rule to send events to a Lambda function.
+
+## Use-cases
+
+- Analytics for IoT events
+- Reacting on IoT events
+
+## Setup
+
+In order to deploy the function simply run
+
+```bash
+serverless deploy
+```
+
+The expected result should be similar to:
+
+```bash
+Serverless: Packaging service...
+Serverless: Uploading CloudFormation file to S3...
+Serverless: Uploading service .zip file to S3 (363 B)...
+Serverless: Updating Stack...
+Serverless: Checking Stack update progress...
+................
+Serverless: Stack update finished...
+Service Information
+service: aws-node-iot-event
+stage: dev
+region: us-east-1
+api keys:
+  None
+endpoints:
+  None
+functions:
+  aws-node-iot-event-dev-log: arn:aws:lambda:us-east-1:377024778620:function:aws-node-iot-event-dev-log
+```
+
+## Usage
+
+In `serverless.yml` the log-function is configured to receive any event from the IoT Topic `mybutton`. We now can go to the IoT Console and visit the Tab `Test`.
+
+![iot-console-test](https://cloud.githubusercontent.com/assets/223045/21593597/352be866-d119-11e6-9639-994b9c495571.png)
+
+There fill `mybutton` into the topic input field in the publish section. Replace existing example data with the following example and press the publish button.
+
+```json
+{
+  "message": "My first IoT event",
+  "value": 2
+}
+```
+
+![iot-console-form](https://cloud.githubusercontent.com/assets/223045/21593596/352be71c-d119-11e6-979a-7aa70abd2bf2.png)
+
+To verify that our event was forwarded to our log-function run
+
+```bash
+serverless logs --function log
+```
+
+The expected result should be similar to:
+
+```bash
+START RequestId: 24192153-d10f-11e6-936c-a98ff4127599 Version: $LATEST
+2017-01-02 18:16:04.768 (+01:00)	24192153-d10f-11e6-936c-a98ff4127599	{ message: 'My first IoT event', value: 2 }
+END RequestId: 24192153-d10f-11e6-936c-a98ff4127599
+REPORT RequestId: 24192153-d10f-11e6-936c-a98ff4127599	Duration: 23.53 ms	Billed Duration: 100 ms 	Memory Size: 1024 MB	Max Memory Used: 8 MB
+```
+
+In the output you can see the IoT event that has been triggered from the test console.

aws-iot-example/handler.js

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+'use strict';
+
+module.exports.log = (event, context, callback) => {
+  console.log(event);
+  callback(null, {});
+};

aws-iot-example/package.json

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+{
+  "name": "aws-iot-example",
+  "version": "1.0.0",
+  "description": "Example on how to setup a AWS IoT Rule to send events to a Lambda function",
+  "author": "",
+  "license": "MIT"
+}

aws-iot-example/serverless.yml

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+service: aws-iot-example
+
+frameworkVersion: ">=1.5.0 <2.0.0"
+
+provider:
+  name: aws
+  runtime: nodejs4.3
+
+functions:
+  log:
+    handler: handler.log
+    events:
+      - iot:
+          sql: "SELECT * FROM 'mybutton'"