The latest articles on DEV Community by sbuilds (@sbuilds_108). https://dev.to/sbuilds_108 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3976457%2F7d9802c9-5aaf-4f2e-b77f-d5b327504af2.png https://dev.to/sbuilds_108 en sbuilds Tue, 09 Jun 2026 18:13:53 +0000 https://dev.to/sbuilds_108/i-built-a-spring-boot-angular-jwt-full-stack-starter-kit-heres-what-i-learned-2hhp https://dev.to/sbuilds_108/i-built-a-spring-boot-angular-jwt-full-stack-starter-kit-heres-what-i-learned-2hhp <h2> Why I built this </h2> <p>Every time I started a new Java full stack project I was <br> spending 2-3 days just on setup — JWT configuration, <br> Spring Security, CORS, connecting Angular to backend.</p> <p>So I decided to build a reusable starter kit once and <br> never do that setup again.</p> <h2> What I built </h2> <p>A complete full stack starter kit with:</p> <ul> <li>Spring Boot 3.5 REST API</li> <li>Angular 19 frontend connected to backend</li> <li>MySQL database with User table ready</li> <li>JWT Authentication working out of the box</li> <li>Spring Security configured</li> <li>Full CRUD operations</li> <li>Clean layered architecture (Controller → Service → Repository)</li> </ul> <h2> The Tech Stack </h2> <p><strong>Backend:</strong> Java 17, Spring Boot, Spring Security, JWT, JPA<br> <strong>Frontend:</strong> Angular 19, TypeScript<br> <strong>Database:</strong> MySQL</p> <h2> How it works </h2> <ol> <li>User registers via POST /api/users</li> <li>User logs in via POST /api/auth/login</li> <li>Backend returns JWT token</li> <li>Frontend stores token in localStorage</li> <li>All protected routes require valid token</li> <li>Invalid or missing token returns 401 Unauthorized</li> </ol> <h2> What I learned </h2> <ul> <li>JWT configuration in Spring Security is confusing at first</li> <li>CORS needs to be configured in SecurityConfig not just main class</li> <li>Angular HttpClient needs provideHttpClient() in app.config.ts</li> <li>Service layer keeps code clean and testable</li> </ul> <h2> GitHub </h2> <p>Full source code is available here:<br> <a href="https://github.com/shindebuilds/springboot-angular-starter-kit" rel="noopener noreferrer">https://github.com/shindebuilds/springboot-angular-starter-kit</a></p> <p>Feel free to clone it, use it, improve it.</p> <p>If you want the packaged version with setup instructions:<br> <a href="https://hanumant4.gumroad.com/l/caopgu" rel="noopener noreferrer">https://hanumant4.gumroad.com/l/caopgu</a></p> <p>Happy building!</p> java springboot angular beginners