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Mastering AWS Lambda

You're reading from   Mastering AWS Lambda Learn how to build and deploy serverless applications

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Product type Paperback
Published in Aug 2017
Publisher Packt
ISBN-13 9781786467690
Length 300 pages
Edition 1st Edition
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Authors (2):
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Udita Gupta Udita Gupta
Author Profile Icon Udita Gupta
Udita Gupta
Yohan Wadia Yohan Wadia
Author Profile Icon Yohan Wadia
Yohan Wadia
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Table of Contents (11) Chapters Close

Preface 1. Introducing AWS Lambda FREE CHAPTER 2. Writing Lambda Functions 3. Testing Lambda Functions 4. Event-Driven Model 5. Extending AWS Lambda with External Services 6. Build and Deploy Serverless Applications with AWS Lambda 7. Monitoring and Troubleshooting AWS Lambda 8. Introducing the Serverless Application Framework 9. AWS Lambda - Use Cases 10. Next Steps with AWS Lambda

Introducing Webhooks

Webhooks are simple callbacks that are rapidly growing in popularity with a lot of developers. Webhooks work in a very similar way to Lambda functions; they are invoked when a particular event is fired by an application on the web. This makes them highly applicable to a variety of web development use cases where, rather than having a traditional API that polls for data on a frequent basis, you use a Webhook to get data at real time.

With most APIs there's a request followed by a response, whereas in the case of Webhooks, they simply send the data whenever it's available.

The way a Webhook works is quite simple! To use a Webhook, you register a URL with the Webhook provider, for example IFTTT or Zapier. The URL is a place within your application that will accept the data and do something with it. In some cases, you can tell the provider the situations...

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