Building Serverless Python Web Services with Zappa电子书

Title Page

Copyright and Credits

Building Serverless Python Web Services with Zappa

Dedication

Packt Upsell

Why subscribe?

PacktPub.com

Contributors

About the author

About the reviewer

Packt is searching for authors like you

Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

Download the colour images

Conventions used

Get in touch

Reviews

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

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

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

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

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

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/<album_id>/photos/"

Configuring Zappa

Building and deploying

Executing in the production environment

Authentication API

GET request on API /albums/

Summary

Questions

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

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

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

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

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

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

Chapter 1, Amazon Web Services for Serverless

Chapter 2, Getting Started with Zappa

Chapter 3, Building a Flask Application with Zappa

Chapter 4, Building a Flask-Based REST API with Zappa

Chapter 5, Building a Django Application with Zappa

Chapter 6, Building a Django REST API with Zappa

Chapter 7, Building a Falcon Application with Zappa

Chapter 8, Custom Domain with SSL

Chapter 9, Asynchronous Task Execution on AWS Lambda

Chapter 10, Advanced Zappa Settings

Chapter 11, Securing Serverless Applications with Zappa

Chapter 12, Zappa with Docker

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