Book Image

Building Serverless Python Web Services with Zappa

By : Abdulwahid Abdulhaque Barguzar
Book Image

Building Serverless Python Web Services with Zappa

By: Abdulwahid Abdulhaque Barguzar

Overview of this book

Serverless applications are becoming very popular these days, not just because they save developers the trouble of managing the servers, but also because they provide several other benefits such as cutting heavy costs and improving the overall performance of the application. This book will help you build serverless applications in a quick and efficient way. We begin with an introduction to AWS and the API gateway, the environment for serverless development, and Zappa. We then look at building, testing, and deploying apps in AWS with three different frameworks--Flask, Django, and Pyramid. Setting up a custom domain along with SSL certificates and configuring them with Zappa is also covered. A few advanced Zappa settings are also covered along with securing Zappa with AWS VPC. By the end of the book you will have mastered using three frameworks to build robust and cost-efficient serverless apps in Python.
Table of Contents (20 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Deploying and executing the Quote API using Zappa


Deployment is an essential part of any web application. We are blessed with Zappa and AWS Lambda, which provide us with the essence of being serverless. As we are enhancing the Quote API application created in the previous chapter, there will some modifications as per our current requirements. 

 

In the coming sections, we will be discussing some changes in Zappa settings.

Setting up the virtual environment

As discussed before, we are using the Chapter08 code base. There is some modification required in the zappa_settings.json file, such as the project_name needing to be changed to Chapter09, as shown in the following snippet:

{
...
"project_name": "chapter-9"
...
}

Once you've changed project_name, you need to configure the virtual environment with pipenv, by using the pipenv install command. This will create a new virtual environment with a changedproject_name.

We are using the Boto3 library to interact with Amazon SNS. Hence, we will need to...