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Building Serverless Python Web Services with Zappa

You're reading from   Building Serverless Python Web Services with Zappa Build and deploy serverless applications on AWS using Zappa

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Product type Paperback
Published in Jul 2018
Publisher Packt
ISBN-13 9781788837613
Length 324 pages
Edition 1st Edition
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Author (1):
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Abdulwahid Abdulhaque Barguzar Abdulwahid Abdulhaque Barguzar
Author Profile Icon Abdulwahid Abdulhaque Barguzar
Abdulwahid Abdulhaque Barguzar
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Table of Contents (15) Chapters Close

Preface 1. Amazon Web Services for Serverless FREE CHAPTER 2. Getting Started with Zappa 3. Building a Flask Application with Zappa 4. Building a Flask-Based REST API with Zappa 5. Building a Django Application with Zappa 6. Building a Django REST API with Zappa 7. Building a Falcon Application with Zappa 8. Custom Domain with SSL 9. Asynchronous Task Execution on AWS Lambda 10. Advanced Zappa Settings 11. Securing Serverless Applications with Zappa 12. Zappa with Docker 13. Assessments 14. Other Books You May Enjoy

Catching unhandled exceptions


Zappa provides a feature to capture unhandled exceptions. This will allow you to process the unhandled exception to raise an alert notification via email, SNS, or other sources. It depends on your requirements, but you can choose any sources to raise a notification. This will be really helpful so that you can track anything that's broken down in any deployed environment.

 

 

For example, if we wanted to send bulk email notifications to all developers and QA engineers for any deployed environment, Zappa provides an easy way to configure the mechanism of catching the unhandled exception. With the help of the exception_handler attribute, you can bind an exception handler method from which you can process the exception to send bulk email notifications.

The following is a code snippet of the Zappa settings file:

{
    "dev": {
        ...
"exception_handler": "your_module.unhandled_exceptions",
    },
    ...
}

Here, the exception handler is a method that's defined in...

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