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

Building, testing, and deploying Django app using Zappa


Django provides a lightweight deployment web server that runs on the local machine at port 8000. You can debug and test your application before moving on to the production environment. Read more about it here (https://docs.djangoproject.com/en/2.0/ref/django-admin/#runserver).

Let's move on to the next sections, where we are going to explore application demonstration and deployment on AWS Lambda.

Executing in the local environment

With the help of the runserver command, you can execute the application in the local web deployment server, with an address such as http://127.0.0.1:8000. The following snippet shows the logs after executing the python manage.py runserver command:

$ python manage.py runserver
Performing system checks...
System check identified no issues (0 silenced).

May 14, 2018 - 10:04:25
Django version 2.0.5, using settings 'imageGalleryProject.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server...