Task-Manager

A multi-user task management system backend application made with Spring Boot and Java based tech stack. Progress:

Nov 3:

• Learnt about Frontend, CRUD Operations, REST API, Backend (Java, Spring Boot), JPA, Lombok, Postman, JWT, CI/CD, Docker, Microservices.
• Initialized the project and created a Hello Controller(/hello).
• Added com/example/taskmanager/:
  • /model/Task.java (A Task class mapped to DB table using JPA annotation)
  • /repository/TaskRepository.java (To perform database handling directly using JpaRepository interface methods, which handles the SQL queries for common CRUD operations internally)
  • /controller/TaskController.java (Different CRUD operations functionalities via registered APIs)
  • TaskManagerApplication.java (Performs booting and setting up everything)

Nov 4:

Nov 5:

• Studied the JPA annotations: @Entity, @Data, @NoArgsConstructor, @AllArgsConstructor, @Id, @GeneratedValue, @RestController, @RequestMapping, @GetMapping, @PostMapping, @PutMapping, @DeleteMapping, @RequestBody, @PathVariable etc...

Nov 6:

• Added com/example/taskmanager/:
  • service/TaskService.Java (Separated the service part from controller to interact with repository)

Nov 7:

• Tested the functionalities using Postman
• Studied MVC Architecture

Nov 11:

• Added exception handling with com/example/taskmanager/:
  • exception/ResourceNotFoundException.java
  • exception/GlobalExceptionHandler.java
• Added simple slf4j logging for info and warn messages (in TaskService.java)
• Added DTOs:
  • dto/TaskRequestDTO
  • dto/TaskResponseDTO
• Added data validation using @Valid annotation on incoming data(TaskRequestDTO)
• Updated the global exception handler to handle data validation exception (MethodArgumentNotValidException)

Nov 12-16:

• Added User and UserRepository for multi-user app support.
• Added email, passwordHash, role fields.