Juha Hinkula [Juha Hinkula] - Hands-On Full Stack Development with Spring Boot 2.0 and React

We have implemented CRUD functionalities to our frontend using an unsecured backend. Now, it is time to switch on security again for our backend and go back to the version that we created in , Securing and Testing Your Backend:

1. Open your backend project with the Eclipse IDE and open the SecurityConfig.java file in the editor view. We commented the security out and allowed everyone access to all endpoints. Now, we can remove that line and also remove the comments from the original version. Now your SecurityConfig.java file's configure method should look like the following:

Let's test what happens when the backend is now secured again.

1. Run the backend by pressing the Run button in Eclipse and check from the Console view that the application started correctly. Run the frontend by typing the npm start command into your terminal and the browser should be opened to the address localhost:3000.

1. You should now see the list page and the table are empty. If you open the developer tools, you will notice that the request ends in the 403 Forbidden HTTP error. This is actually what we wanted because we haven't done the authentication yet to our frontend:

1. How should you create a Spring Boot-executable JAR file?
2. How should you deploy the Spring Boot application to Heroku?
3. How should you deploy the React app to Heroku?
4. What is Docker?
5. How should you create the Spring Boot application container?
6. How should you create the MariaDB container?

If you enjoyed this book, you may be interested in these other books by Packt:

Hands-On High Performance with Spring 5
Chintan Mehta, Subhash Shah, Pritesh Shah, Prashant Goswami, Dinesh Radadiya

ISBN: 978-1-78883-838-2

• Master programming best practices and performance improvement with bean wiring
• Analyze the performance of various AOP implementations
• Explore database interactions with Spring to optimize design and configuration
• Solve Hibernate performance issues and traps
• Leverage multithreading and concurrent programming to improve application performance
• Gain a solid foundation in JVM performance tuning using various tools
• Learn the key concepts of the microservice architecture and how to monitor them
• Perform Spring Boot performance tuning, monitoring, and health checks

Building RESTful Web Services with Spring 5 - Second Edition
Raja CSP Raman, Ludovic Dewailly

ISBN: 978-1-78847-589-1

• Deep dive into the principles behind REST
• Expose CRUD operations through RESTful endpoints with the Spring Framework
• Devise response formats and error handling strategies, offering a consistent and flexible structure to simplify integration for service consumers
• Follow the best approaches for dealing with a service's evolution while maintaining backward compatibility
• Understand techniques to secure web services
• Comply with the best ways to test RESTful web services, including tips for load testing
• Optimise and scale web services using techniques such as caching and clustering

1. What is REST?
2. How can you create a RESTful web service with Spring Boot?
3. How can you fetch items using our RESTful web service?
4. How can you delete items using our RESTful web service?
5. How can you add items using our RESTful web service?
6. How can you update items using our RESTful web service?
7. How can you use queries with our RESTful web service?

We will create our backend project with Spring Intializr, that is a web-based tool that's used to create Spring Boot projects. Spring Intializr can be found at https://start.spring.io:

We will generate a Maven project with Java and the latest Spring Boot version. In the Group field, we will define our group ID, that will also become a base package in our Java project. In the Artifact field, we will define the artifact ID, that will also be the name of our project in Eclipse.

In the Dependencies section, we will select the starters and dependencies that are needed in our project. Spring Boot provides starter packages that simplify your Maven configuration. Spring Boot starters are actually a set of dependencies that you can include in your project. You can either type the keyword of the dependency into the search field, or you can see all available dependencies by clicking on the Switch to the full version link. We will start our project by selecting two dependencies Web and DevTools . You can type the dependencies into the search field or switch to the full version and see all the starter packages and dependencies available:

The DevTools dependency provides us with Spring Boot development tools, that provide automatic restart functionality. It makes development much faster because the application is automatically restarted when changes have been saved. The web starter pack is a base for full-stack development and provides embedded Tomcat.