feat: add task api service with GET and POST methods

[solar224]

Hi, My name is Yu-Chen Chan, and I am a first-year master's student in the lab.
As requested by a senior lab member for the Lab 6 exercise, this PR introduces a new API service for managing tasks. It includes the following endpoints:
POST /api/tasks: To create a new task.
GET /api/tasks: To retrieve all existing tasks.

Thank you for your review!

[Copilot]

Pull Request Overview

This PR introduces a new REST API service for task management, implementing basic CRUD operations for tasks with GET and POST endpoints at /api/tasks.

• Adds a Task struct with ID and Name fields to the application context
• Implements HTTP handlers for creating new tasks and retrieving all tasks
• Sets up routing infrastructure to expose the task endpoints

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
internal/context/context.go	Defines Task struct and adds Tasks slice to NFContext
internal/sbi/processor/task_handler.go	Implements business logic for task creation and retrieval
internal/sbi/api_task.go	Defines HTTP handlers and route configuration for task endpoints
internal/sbi/router.go	Registers task routes under /api group

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[Copilot]

The task creation logic has a race condition where the Tasks slice can be modified by concurrent requests, potentially causing data corruption or lost updates. Consider adding proper synchronization mechanisms like mutexes around the critical section.

Suggested change

	"github.com/andy89923/nf-example/internal/context"
	"github.com/gin-gonic/gin"
	)
	func (p *Processor) CreateNewTask(c *gin.Context) {
	var newTask context.Task
	if err := c.ShouldBindJSON(&newTask); err != nil {
	c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid request body"})
	return
	}
	tasks := p.Context().Tasks
	newTask.ID = len(tasks) + 1
	p.Context().Tasks = append(tasks, newTask)
	c.JSON(http.StatusCreated, newTask)
	}
	func (p *Processor) GetAllTasks(c *gin.Context) {
	tasks := p.Context().Tasks
	"sync"
	"github.com/andy89923/nf-example/internal/context"
	"github.com/gin-gonic/gin"
	)
	var tasksMutex sync.Mutex
	func (p *Processor) CreateNewTask(c *gin.Context) {
	var newTask context.Task
	if err := c.ShouldBindJSON(&newTask); err != nil {
	c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid request body"})
	return
	}
	tasksMutex.Lock()
	tasks := p.Context().Tasks
	newTask.ID = len(tasks) + 1
	p.Context().Tasks = append(tasks, newTask)
	tasksMutex.Unlock()
	c.JSON(http.StatusCreated, newTask)
	}
	func (p *Processor) GetAllTasks(c *gin.Context) {
	tasksMutex.Lock()
	tasks := p.Context().Tasks
	tasksMutex.Unlock()

[Alonza0314]

Hi @solar224 ,
please fork from here and open PR to this repo.

https://github.com/Alonza0314/nf-example