Practising Quarkus Quarkus Antonio Goncalves 2020-10-24 Table of Contents Foreword . 3 About the Author . 4 Acknowledgments . 5 Introduction. 7 Where Does This Fascicle Come From? . 7 Who Is This Fascicle For? . 8 How Is This Fascicle Structured? . 8 Conventions. 9 The Sample Application . 10 Downloading and Running the Code. 11 Getting Help. 12 Contacting the Author. 12 1. First Step with Quarkus . 13 2. Understanding Quarkus . 15 2.1. Understanding Quarkus . 15 2.2. Understanding MicroProfile . 15 2.3. Summary . 17 3. Getting Started . 18 3.1. What Will You Build in This Fascicle? . 18 3.1.1. Overall Architecture. 18 3.1.2. User Interface . 19 3.2. Setting up the Development Environment on macOS . 21 3.2.1. Installing the Required Tools . 21 3.2.2. Installing the Startup Code . 22 Directory Structure. 22 Maven Parent POM. 23 3.2.3. Executing the Startup Code . 25 3.2.4. Running the Infrastructure . 25 3.2.5. Building the Angular Web Application . 26 3.2.6. Checking Listening Ports. 27 3.3. Summary . 27 4. Developing the REST Number Microservice . 28 4.1. What Will You Build in This Chapter? . 28 4.1.1. Overall Architecture. 28 4.1.2. Directory Structure. 29 4.1.3. Maven Dependencies . 29 4.2. Number REST Endpoint . 32 4.2.1. The Number Resource . 33 4.2.2. The Book Numbers Class. 34 4.3. Injecting Configuration Value . 35 4.4. Customising the JSON Output . 36 4.5. OpenAPI . 38 4.5.1. Customising the OpenAPI Contract of the Number REST Endpoint . 40 4.5.2. Customising the BookNumber POJO . 41 4.5.3. Customising the OpenAPI Contract of the Application . 42 4.5.4. The Customised OpenAPI Contract. 43 4.5.5. Swagger UI . 44 4.6. Application Startup and Shutdown . 46 4.6.1. Displaying the Current Environment. 48 4.7. Running the Application. 48 4.7.1. Live Reload . 49 4.7.2. Configuring the Application . 49 Configuring the Quarkus Listening Port . 50 Configuring Logging. 50 4.7.3. Testing the Application . 50 Testing the Business Logic . ..