Building Serverless Applications with Python : Develop fast, scalable, and cost-effective web applications that are always available

**Building efficient Python applications at minimal cost by adopting serverless architectures** **About This Book*** Design and set up a data flow between cloud services and custom business logic * Make your applications efficient and reliable using serverless architecture * Build and deploy scalable serverless Python APIs **Who This Book Is For**This book is for Python developers who would like to learn about serverless architecture. Python programming knowledge is assumed. **What You Will Learn*** Understand how AWS Lambda and Microsoft Azure Functions work and use them to create an application * Explore various triggers and how to select them, based on the problem statement * Build deployment packages for Lambda functions * Master the finer details about building Lambda functions and versioning * Log and monitor serverless applications * Learn about security in AWS and Lambda functions * Scale up serverless applications to handle huge workloads and serverless distributed systems in production * Understand SAM model deployment in AWS Lambda **In Detail**Serverless architectures allow you to build and run applications and services without having to manage the infrastructure. Many companies have adopted this architecture to save cost and improve scalability. This book will help you design serverless architectures for your applications with AWS and Python. The book is divided into three modules. The first module explains the fundamentals of serverless architecture and how AWS lambda functions work. In the next module, you will learn to build, release, and deploy your application to production. You will also learn to log and test your application. In the third module, we will take you through advanced topics such as building a serverless API for your application. You will also learn to troubleshoot and monitor your app and master AWS lambda programming concepts with API references. Moving on, you will also learn how to scale up serverless applications and handle distributed serverless systems in production. By the end of the book, you will be equipped with the knowledge required to build scalable and cost-efficient Python applications with a serverless framework. **Style and approach**The book takes a pragmatic approach, using a real-world example to demonstrate building efficient, secure, and scalable serverless applications. Downloading the example code for this book You can download the example code files for all Packt books you have purchased from your account at http://www.PacktPub.com. If you purchased this book elsewhere, you can visit http://www.PacktPub.com/support and register to have the files e-mailed directly to you. Harness the power of the Cloud, leveraging the speed and scale of Azure Serverless computing About This Book Take advantage of the agility, scale, and cost-effectiveness of the cloud using Azure Serverless compute Build scalable, reliable, and cost-effecient applications with Serverless architecture and .NET Learn to use Azure functions to their fullest potential in .NET Who This Book Is For This book is for .NET developers who would like to learn about serverless architecture. Basic C# programming knowledge is assumed. What You Will Learn Understand the best practices of Serverless architecture Learn how how to deploy a Text Sentiment Evaluation application in an Azure Serverless environment Implement security, identity, and access control Take advantage of the speed of deployment in the cloud Configure application health monitoring, logging, and alerts Design your application to ensure cost effectiveness, high availability, and scale In Detail Serverless architecture allows you to build and run applications and services without having to manage the infrastructure. Many companies have started adopting serverless architecture for their applications to save cost and improve scalability. This book will be your companion in designing Serverless architecture for your applications using the .NET runtime, with Microsoft Azure as the cloud service provider. You will begin by understanding the concepts of Serverless architecture, its advantages and disadvantages. You will then set up the Azure environment and build a basic application using a sample text sentiment evaluation function. From here, you will be shown how to run services in a Serverless environment. We will cover the integration with other Azure and 3rd party services such as Azure Service Bus, as well as configuring dependencies on NuGet libraries, among other topics. After this, you will learn about debugging and testing your Azure functions, and then automating deployment from source control. Securing your application and monitoring its health will follow from there, and then in the final part of the book, you will learn how to Design for High Availability, Disaster Recovery and Scale, as well as how to take advantage of the cloud pay-as-you-go model to design cost-effective services. We will finish off with explaining how azure functions scale up against AWS Lambda, Azure Web Jobs, and Azure Batch compare to other types of compute-on-demand services. Whether you've been working with Azure for a while, or you're just getting started, by the end of the book you will have all the information you need to set up and deploy applications to the Azure Serverless Computing environment. Style and approach This step-by-step guide shows you the concepts and features of Serverless architecture in Azure with .NET Building efficient Python applications at minimal cost by adopting serverless architectures About This Book Design and set up a data flow between cloud services and custom business logic Make your applications efficient and reliable using serverless architecture Build and deploy scalable serverless Python APIs Who This Book Is For This book is for Python developers who would like to learn about serverless architecture. Python programming knowledge is assumed. What You Will Learn Understand how AWS Lambda and Microsoft Azure Functions work and use them to create an application Explore various triggers and how to select them, based on the problem statement Build deployment packages for Lambda functions Master the finer details about building Lambda functions and versioning Log and monitor serverless applications Learn about security in AWS and Lambda functions Scale up serverless applications to handle huge workloads and serverless distributed systems in production Understand SAM model deployment in AWS Lambda In Detail Serverless architectures allow you to build and run applications and services without having to manage the infrastructure. Many companies have adopted this architecture to save cost and improve scalability. This book will help you design serverless architectures for your applications with AWS and Python. The book is divided into three modules. The first module explains the fundamentals of serverless architecture and how AWS lambda functions work. In the next module, you will learn to build, release, and deploy your application to production. You will also learn to log and test your application. In the third module, we will take you through advanced topics such as building a serverless API for your application. You will also learn to troubleshoot and monitor your app and master AWS lambda programming concepts with API references. Moving on, you will also learn how to scale up serverless applications and handle distributed serverless systems in production. By the end of the book, you will be equipped with the knowledge required to build scalable and cost-efficient Python applications with a serverless framework. Style and approach The book takes a pragmatic approach, using a real-world example to demonstrate building efficient, secure, and scalable serverless applications. Downloading the example code for this book You can download the example code files for all Packt books you have purchased from your account at http://www.PacktPub.com. If you purchased this book elsewhere, you can visit http://www.PacktPub.com/support and register to have the files e-mailed directly to you. Build scalable, reliable, and cost-effective applications with a serverless architecture About This Book Design a real-world serverless application from scratch Learn about AWS Lambda function and how to use Lambda functions to glue other AWS Services Use the Java programming language and well-known design patterns. Although Java is used for the examples in this book, the concept is applicable across all languages Learn to migrate your JAX-RS application to AWS Lambda and API Gateway Who This Book Is For This book is for developers and software architects who are interested in designing on the back end. Since the book uses Java to teach concepts, knowledge of Java is required. What You Will Learn Learn to form microservices from bigger Softwares Orchestrate and scale microservices Design and set up the data flow between cloud services and custom business logic Get to grips with cloud provider's APIs, limitations, and known issues Migrate existing Java applications to a serverless architecture Acquire deployment strategies Build a highly available and scalable data persistence layer Unravel cost optimization techniques In Detail Over the past years, all kind of companies from start-ups to giant enterprises started their move to public cloud providers in order to save their costs and reduce the operation effort needed to keep their shops open. Now it is even possible to craft a complex software system consisting of many independent micro-functions that will run only when they are needed without needing to maintain individual servers. The focus of this book is to design serverless architectures, and weigh the advantages and disadvantages of this approach, along with decision factors to consider. You will learn how to design a serverless application, get to know that key points of services that serverless applications are based on, and known issues and solutions. The book addresses key challenges such as how to slice out the core functionality of the software to be distributed in different cloud services and cloud functions. It covers basic and advanced usage of these services, testing and securing the serverless software, automating deployment, and more. By the end of the book, you will be equipped with knowledge of new tools and techniques to keep up with this evolution in the IT industry. Style and approach The book takes a pragmatic approach, showing you all the examples you need to build efficient serverless applications BBuilding efficient Python applications at minimal cost by adopting serverless architectures/bh2About This Book/h2ulliDesign and set up a data flow between cloud services and custom business logic/liliMake your applications efficient and reliable using serverless architecture/liliBuild and deploy scalable serverless Python APIs/li/ulh2Who This Book Is For/h2This book is for Python developers who would like to learn about serverless architecture. Python programming knowledge is assumed.h2What You Will Learn/h2ulliUnderstand how AWS Lambda and Microsoft Azure Functions work and use them to create an application/liliExplore various triggers and how to select them, based on the problem statement/liliBuild deployment packages for Lambda functions/liliMaster the finer details about building Lambda functions and versioning/liliLog and monitor serverless applications/liliLearn about security in AWS and Lambda functions/liliScale up serverless applications to handle huge workloads and serverless distributed systems in production/liliUnderstand SAM model deployment in AWS Lambda/li/ulh2In Detail/h2Serverless architectures allow you to build and run applications and services without having to manage the infrastructure. Many companies have adopted this architecture to save cost and improve scalability. This book will help you design serverless architectures for your applications with AWS and Python.The book is divided into three modules. The first module explains the fundamentals of serverless architecture and how AWS lambda functions work. In the next module, you will learn to build, release, and deploy your application to production. You will also learn to log and test your application. In the third module, we will take you through advanced topics such as building a serverless API for your application. You will also learn to troubleshoot and monitor your app and master AWS lambda programming concepts with API references. Moving on, you will also learn how to scale up serverless applications and handle distributed serverless systems in production.By the end of the book, you will be equipped with the knowledge required to build scalable and cost-efficient Python applications with a serverless framework.h2Style and approach/h2The book takes a pragmatic approach, using a real-world example to demonstrate building efficient, secure, and scalable serverless applications Building Efficient Python Applications At Minimal Cost By Adopting Serverless Architectures Key Features Design And Set Up A Data Flow Between Cloud Services And Custom Business Logic Make Your Applications Efficient And Reliable Using Serverless Architecture Build And Deploy Scalable Serverless Python Apis Book Description Serverless Architectures Allow You To Build And Run Applications And Services Without Having To Manage The Infrastructure. Many Companies Have Adopted This Architecture To Save Cost And Improve Scalability. This Book Will Help You Design Serverless Architectures For Your Applications With Aws And Python. The Book Is Divided Into Three Modules. The First Module Explains The Fundamentals Of Serverless Architecture And How Aws Lambda Functions Work. In The Next Module, You Will Learn To Build, Release, And Deploy Your Application To Production. You Will Also Learn To Log And Test Your Application. In The Third Module, We Will Take You Through Advanced Topics Such As Building A Serverless Api For Your Application. You Will Also Learn To Troubleshoot And Monitor Your App And Master Aws Lambda Programming Concepts With Api References. Moving On, You Will Also Learn How To Scale Up Serverless Applications And Handle Distributed Serverless Systems In Production. By The End Of The Book, You Will Be Equipped With The Knowledge Required To Build Scalable And Cost-efficient Python Applications With A Serverless Framework. What You Will Learn Understand How Aws Lambda And Microsoft Azure Functions Work And Use Them To Create An Application Explore Various Triggers And How To Select Them, Based On The Problem Statement Build Deployment Packages For Lambda Functions Master The Finer Details About Building Lambda Functions And Versioning Log And Monitor Serverless Applications Learn About Security In Aws And Lambda Functions Scale Up Serverless Applications To Handle Huge Workloads And Serverless Distributed Systems In Production Understand Sam Model Deployment In Aws Lambda Who This Book Is For This Book Is For Python Developers Who Would Like To Learn About Serverless Architecture. Python Programming Knowledge Is Assumed.