Introduction to Visual Studio Code
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Developing Multi- Platform Apps with Visual Studio Code Get up and running with VS Code by building multi-platform, cloud-native, and microservices- based apps Ovais Mehboob Ahmed Khan Khusro Habib BIRMINGHAM—MUMBAI Developing Multi-Platform Apps with Visual Studio Code Copyright © 2020 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews. Every efort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the authors, nor Packt Publishing or its dalers and distributors, will be held liable for any damages caused or alleged to have been caused directly or indirectly by this book. Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information. Commissioning Editor: Richa Tripathi Acquisition Editor: Alok Dhuri Senior Editor: Nitee Shetty Content Development Editor: Tiksha Lad Technical Editor: Pradeep Sahu Copy Editor: Safs Editing Project Coordinator: Deeksha Takkar Proofreader: Safs Editing Indexer: Rekha Nair Production Designer: Joshua Misquitta First published: September 2020 Production reference: 1170920 Published by Packt Publishing Ltd. Livery Place 35 Livery Street Birmingham B3 2PB, UK. ISBN 978-1-83882-293-4 www.packt.com Packt.com Subscribe to our online digital library for full access to over 7,000 books and videos, as well as industry leading tools to help you plan your personal development and advance your career. For more information, please visit our website. Why subscribe? • Spend less time learning and more time coding with practical eBooks and Videos from over 4,000 industry professionals • Improve your learning with Skill Plans built especially for you • Get a free eBook or video every month • Fully searchable for easy access to vital information • Copy and paste, print, and bookmark content Did you know that Packt ofers eBook versions of every book published, with PDF and ePub fles available? You can upgrade to the eBook version at packt.com and as a print book customer, you are entitled to a discount on the eBook copy. Get in touch with us at [email protected] for more details. At www.packt.com, you can also read a collection of free technical articles, sign up for a range of free newsletters, and receive exclusive discounts and ofers on Packt books and eBooks. Foreword Of all the products I've had the privilege of working on at Microsof in the last 25 years, Visual Studio Code has to be my favorite. Te efciency of the user interface combined with the power of the extensibility model creates a unique experience that lets developers decide what makes them productive. Whether you are new to programming or a seasoned professional developer, you will fnd time saving tools, tricks, and deep insights to make development fast and fun with Visual Studio Code. Ovais and Khusro teach you the fundamentals of VS Code to quickly get you up and running and they show you how you can create and use extensions to VS Code to add new capabilities to make you more efcient. Tey show you how you can build and deploy real, modern day cloud-based applications with just an editor and they show you how you can elevate your game by using VS Code to develop on remote machines, operating systems, and even the cloud with GitHub Codespaces. Chris Dias Principal Group Program Manager, Visual Studio Code Microsof Contributors About the authors Ovais Mehboob Ahmed Khan is a seasoned programmer and solution architect with nearly 20 years of experience in sofware development, consultancy and solution architecture. He has worked with various clients across the United States, Europe, Middle East and Africa. Currently he is working as a Sr. Customer Engineer at Microsof, based in Dubai. He specializes mainly in Application development using .NET and other OSS technologies, Microsof Azure and DevOps. He is a prolifc writer and has published few books on Enterprise Application Architecture, .NET Core and JavaScript, and written numerous technical articles on various sites. He likes to talk about technology and has delivered various technical sessions around the world. I would like to thank my family for supporting and encouraging me in every goal of my life. Khusro Habib has been working in the IT industry for almost 20 years. He is a veteran programmer and delivered several enterprise grade solutions in the capacity of a consultant and solution architect. He is a certifed Enterprise Architect Practitioner with the experience to design change for an enterprise. His current focus is on Cloud Computing, Web and Mobile development, Data and Process Integration, Analytics and Machine Learning. With knowledge on various technology domains, he can place technology in the right context and address complex problems with workable IT solutions. He has a unique way of explaining things by breaking them down and then gradually building them up to create a better understanding. I would like to dedicate this book to my family who have been very supportive throughout this journey. About the reviewer Ankit Gupta has been involved in sofware development for over 8 years. During these years of experience, he has developed sofware solutions for low-code/no-code development platforms and virtual desktop infrastructure technology to simplify the user experience and customize systems. As a senior developer, he reviews new feature specifcations, user experience, performance, and accessibility, as well as helping his team with designs, code reviews, and following object-oriented programming concepts using the Agile model. Packt is searching for authors like you If you're interested in becoming an author for Packt, please visit authors. packtpub.com and apply today. We have worked with thousands of developers and tech professionals, just like you, to help them share their insight with the global tech community. You can make a general application, apply for a specifc hot topic that we are recruiting an author for, or submit your own idea. Table of Contents Preface 1 Getting Started with Visual Studio Code Discussing editors and IDEs 5 Integrated terminal 20 Discussing basic features of VS Split Editor 21 Code 5 Command palette 21 Files and folders 6 Themes 23 Workspace 6 Basic editing in VS Code 24 IntelliSense 8 Generating HTML 24 Tasks 8 Multi-cursor editing 25 Debugging 9 Code refactoring 27 Version control 11 Snippets 31 Keyboard shortcuts 13 Editing and code navigation in Setting up VS Code 13 VS Code 33 Launching VS Code 14 Go to symbol 34 Setting up the command line for macOS 14 Using commands for navigation 35 Status Bar 19 Navigating between fles 35 Quick Links 19 Commenting code 36 Panel 19 Summary 36 2 Extensions in Visual Studio Code Managing and confguring extensions 38 ii Table of Contents Extension packs 39 Code snippet extensions for client-side Installing extensions from VSIX 40 frameworks 47 Extension information 41 Visual adjustment extensions 50 Extension flters 42 Shades of Purple 51 View commands to flter extensions 42 Linux Themes for VS Code 51 Extension identifers 43 C/C++ Themes 51 Filtering extensions using categories 44 Productivity extensions 52 Creating a list for recommended extensions 45 Visual Studio IntelliCode 52 Live Share 53 Client-side framework Prettier 54 extensions 47 Summary 56 Section 2: Developing Microservices-Based Applications in Visual Studio Code 3 Building a Multi-Platform Backend Using Visual Studio Code Technical requirements 60 Creating a new Express.JS API project Overview of our application in VS Code 73 architecture 60 Building a schedule API in Java Brief introduction to Azure using VS Code 79 platform services 62 Creating a new Java Spring Boot API Resource group and resources 62 project in VS Code 79 Creating an Azure resource group 63 Building a notifcation API in Creating Azure Cosmos DB's API for Mongo DB 65 Python using VS Code 84 Creating the database collections 67 Summary 90 4 Building a Service in .NET Core and Exploring Dapr Azure Event Hubs with Kafka 92 What is Kafka? 92 Table of Contents iii Creating Azure Event Hubs 93 Adding a hosted service to the Startup class 111 Building a background service Writing Producer in the NodeJS API to in .NET Core using VS Code 100 publish messages to Kafka 111 Creating a new .NET Core project in VS Writing Producer in the Java API to Code 100 publish messages to Kafka 114 Creating a consumer to listen for Kafka Dapr building blocks 116 events 102 Core components of Dapr 118 Creating a hosted service for job Confguring the Dapr environment 119 requests 107 Service invocation with Dapr 120 Creating a hosted service for Pub/sub communication with Dapr 121 notifcations 109 Summary 124 5 Building a Web-Based Frontend Application with Angular Technical requirements 126 Designing and styling the home page 136 Installing Node.js 126 Creating the feature modules 137 Installing the Angular CLI 127 Creating the login feature 138 A quick overview of Angular 127 Creating the authorization service 142 Designing our application 128 Creating the job request feature 144 Creating and running the Creating the agent feature