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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

serverless deploy

The expected result should be similar to:

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

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.

{
  "message": "My first IoT event",
  "value": 2
}

iot-console-form

To verify that our event was forwarded to our log-function run

serverless logs --function log

The expected result should be similar to:

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.