Building Serverless Python Web Services with Zappa: Build and deploy serverless applications on AWS using Zappa

Cover
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Table of Contents
Preface
Chapter 1: Amazon Web Services for Serverless
	Technical requirements
	Transitioning from traditional server to serverless
	Getting started with AWS Lambda
	How AWS Lambda works
		Configuration
			Function code
			Environment variables
			Tags
			Execution role
			Basic settings
			Network
			Debugging and error handling
		Monitoring
	Executing the Lambda function
	Creating Lambda triggers
	Serverless RESTful API
	AWS Lambda interaction with theAWS CLI 
		Installing the AWS CLI
		Configuring the AWS CLI
	Configuring Lambda function with the AWS CLI
		Creating a Lambda function
		Invoking the function
		Create-event-source-mapping
	Summary
	Questions
Chapter 2: Getting Started with Zappa
	Technical requirements
		Hardware
		Software
	What is Zappa?
	Installing and configuring Zappa
	Building, testing, and deploying a Python web service using Zappa
		Building the deployment package
			What do you call this environment? (default dev)
			What do you want to call your bucket? (default zappa-2o2zd8dg4)
			What's your modular path to your app function? (default dev)
			Would you like to deploy the application globally? (default n)
			The zappa_settings.json file
			Deploying and testing hello world
	Basic uses
		Initial deployments
		Update
		Status
		Tailing logs
		Rollback
		Undeploy
		Package
	Summary
	Questions
Chapter 3: Building a Flask Application with Zappa
	Technical requirements
	What is Flask?
		Installing Flask
	A minimal Flask application
	Configuring with Zappa
	Building, testing, and deploying on AWS Lambda
	A complete Flask Todo application
		Prerequisite
			Virtualenv
			Flask extensions
			Scaffolding
			Configuration
			Base model
		Authentication
			Blueprint
			Models
			Forms
			Views
			Templates
		Todo
			Blueprint
			Model
			Forms
			Views
				CREATE
				RETRIEVE
				UPDATE
				DELETE
			Templates
			FLASK_APP
		Deployment
	Summary
	Questions
Chapter 4: Building a Flask-Based REST API with Zappa
	Technical requirements
	Installing and configuring Flask
		Flask extensions
			Flask-JWT
				Learning about JWT
			Flask-RESTful
				Begining with REST
	Designing the REST API 
		Configuring the application settings
		Implementing authentication
		Implementing the todo API
	Building, testing, and deploying the REST API using Zappa
		Configuring Zappa
		Initiating deployment using Zappa
		Demonstrating the deployed application
			Sign up API
			Login API
			Todo API
				Todo API without authorization
				Todo API with the authorization header
	Summary
	Questions
Chapter 5: Building a Django Application with Zappa
	Technical requirements
	Installing and configuring Django
		Setting up a virtual environment
			Installing pipenv
			Configuring and installing packages
	Designing an image gallery application
		Design overview
		Initializing the project
		Implementing models
		Integrating with the admin panel
		Application demonstration
	Configuring the Amazon CloudFront CDN
		Creating CloudFront distributions
	Setting up static and media files
		Standard configuration
		django-storage
	Building, testing, and deploying the Django application using Zappa
		Configuring Zappa
		Building and deploying
		Django management command using Zappa
	Summary
	Questions
Chapter 6: Building a Django REST API with Zappa
	Technical requirements
	Installing and configuring the Django REST Framework
		Installing the required packages
	Designing REST APIs
		What is the Django Rest Framework?
		Integrating the REST Framework
		Implementing authentication and authorization
			Configuring django-rest-framework-jwt
		Implementing serializers
		Implementing viewsets
		Configuring the URL routes
	Building, testing, and deploying Django app using Zappa
		Executing in the local environment
			API authentication
			GET request on API "/albums/"
			POST request on API "/albums//photos/"
		Configuring Zappa
		Building and deploying
		Executing in the production environment
			Authentication API
			GET request on API /albums/
	Summary
	Questions
Chapter 7: Building a Falcon Application with Zappa
	Technical requirements
	Installing and configuring Falcon
		Setting up the virtual environment
			Installing required packages
		What is Falcon?
		What is Peewee?
	Designing Falcon APIs
		Scaffolding the application
		Designing the model class
		Mashape API integration
		Creating API resources
	Building, testing, and deploying Falcon APIs using Zappa
		Local execution using gunicorn
			API for the daily quote
			API of the random quote
		Configuring Zappa
			Zappa initialization
			Zappa deployment
		Executing in the production environment
			Daily quote API execution
			Random quote API execution
			Enabling caching on the API Gateway
		Event scheduling
			Configuring events using Zappa
			Scheduling an event to set the quote of the day
	Summary
	Questions
Chapter 8: Custom Domain with SSL
	Technical requirements
	Configuring custom domain with AWS Route 53
		What is AWS Route 53?
		Changing nameservers to Route 53
	Generating SSL certificates using AWS Certificate Manager
		What is SSL?
		What are SSL certificates?
		Generating SSL certificate using Amazon Certificate Manager (ACM)
	Integrating custom domain using Zappa
		Deploying to a domain with ACM certificate
		Application execution with the configured domain
			Daily quote API
			Random quote API
	Summary
	Questions
Chapter 9: Asynchronous Task Execution on AWS Lambda
	Technical requirements
	Asynchronous execution
		Understanding asynchronous execution
		Asynchronous AWS Lambda execution using Boto3
	AWS Lambda asynchronous invocation using Zappa
		Asynchronous AWS Lambda invocation using the task decorator
		Amazon SNS as the task source
		Direct invocation
		Remote invocation
	Configuring the Quote API application with async features
		SMS subscription with Amazon SNS for the daily quote
			Configuring Amazon SNS using Boto3
			Implementing the SMS subscription functionality
	Deploying and executing the Quote API using Zappa
		Setting up the virtual environment
		Setting up environment variables
		Adding a custom domain with SSL
		Scheduling an event to publish an SMS
		Deployment
		Quote API execution
			The daily quote API
			Daily quote SMS subscription
			Daily quote SMS unsubscription
	Summary
	Questions
Chapter 10: Advanced Zappa Settings
	Technical requirements
	Keeping the server warm
	Enabling CORS
	Handling larger projects
		Handling larger projects using the AWS Lambda console
		Handling larger projects using Zappa
	Enabling bash tab compilation
	Catching unhandled exceptions
	Summary
	Questions
Chapter 11: Securing Serverless Applications with Zappa
	Technical requirements
	Implementing a random quote API
		Prerequisites
		Developing the random quote API
		Deploying with Zappa
		Executing the API
	Enabling secure endpoints on API Gateway
		Enabling the API Key
			Executing the API with the API key header
		IAM policy
		API Gateway Lambda authorizer
	Tracing AWS Lambda failure with dead letter queues
		Manual DLQ configuration
		Automating DLQ configuration with Zappa
		Raising exceptions in the asynchronous Lambda function
	Analyzing the Zappa application with AWS X-Ray
		X-Ray manual integration with AWS Lambda
		Zappa configuration to enable AWS X-Ray support
	Securing your Zappa application using AWS VPC
		Manual configuration of VPC
		VPC configuration using Zappa
	Summary
	Questions
Chapter 12: Zappa with Docker
	Technical requirements
	Understanding Docker
	Problem statement
		Proposed solution
		Case study for this solution
	API development with a custom tool dependency
		Prerequisites
		Implementing the /doc-parser API
		Executing in the local environment
	Building, testing, and deploying with Docker
		Building without Docker
		Configuring Docker with Zappa
		Executing the API on AWS Lambda
	Summary
	Questions
Assessments
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Index