The zappa_settings.json file

Once you've finished the questionnaire session, Zappa creates a basic zappa_settings.json file based on your input. zappa_settings.json plays an important role in configuring Zappa with your project. If you initialize Zappa in your existing project (Django/Flask/Pyramid/Bottle), then Zappa automatically detects the type of project and creates the zappa_settings.json file accordingly.

The following is the content of our newly created zappa_settings.json file for the hello world program:

{
   "dev": {
       "app_function": "hello.app",
       "aws_region": "ap-south-1",
       "profile_name": "default",
       "project_name": "lambda-bottle-p",
       "runtime": "python3.6",
       "s3_bucket": "zappa-2o2zd8dg4"
   }
}

For a Django project, it uses django_settings instead of app_function. django_settings needs to be initialized with the path to your Django settings:

{
   "dev": {
       "django_settings": "your_project.settings",
       "aws_region": "ap-south-1",
       "profile_name": "default",
       "project_name": "lambda-bottle-p",
       "runtime": "python3.6",
       "s3_bucket": "zappa-2o2zd8dg4"
   }
}

The preceding configuration is enough to deploy a basic Python web application. Let's move on and deploy hello world as a serverless application.