List Task Endpoint

Let's add a list tasks endpoint to our REST API!

Implement the List Task Endpoint

The list tasks endpoint is simpler than the create tasks endpoint:

  /**
   * Lists all tasks with an HTTP 200 OK.
   *
   * @return The list of tasks.
   */
  @GetMapping
  public ResponseEntity<List<TaskDto>> listTasks() {

    // Call the listTasks method on the TaskService to get a list of tasks.
    List<Task> tasks = taskService.listTasks();

    // Map the list of Task objects to a list of TaskDto objects.
    List<TaskDto> taskDtoList = tasks.stream()
        .map(taskMapper::toDto)
        .toList();

    // Return the list of TaskDto objects with an HTTP 200 OK.
    return ResponseEntity.ok(taskDtoList);

  }

We use @GetMapping as this endpoint uses HTTP GET, and as we're using HTTP GET we don't expect a request body.

There we have it, the list tasks endpoint is now ready to test in the UI!

Summary

Implemented the listTasks method on the TaskController.