golang框架中依赖注入的安全性考虑

package main

import (
    "net/http"

    "github.com/gin-gonic/gin"
    "github.com/google/wire"
)

// Database is a mock database interface.
type Database interface {
    GetUsers() ([]string, error)
}

// NewDatabase returns a new database instance.
func NewDatabase() Database {
    return &mockDatabase{}
}

// UserService is a service that interacts with the database.
type UserService struct {
    db Database
}

// NewUserService returns a new user service.
func NewUserService(db Database) *UserService {
    return &UserService{
        db: db,
    }
}

// UserController is a controller that handles user-related HTTP requests.
type UserController struct {
    userService *UserService
}

// NewUserController returns a new user controller.
func NewUserController(userService *UserService) *UserController {
    return &UserController{
        userService: userService,
    }
}

// GetUsers returns a list of users from the underlying database.
func (c *UserController) GetUsers(ctx *gin.Context) {
    users, err := c.userService.GetUsers()
    if err != nil {
        ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
        return
    }
    ctx.JSON(http.StatusOK, users)
}

func main() {
    // Create the DI container.
    container, err := wire.NewSet(NewDatabase, NewUserService, NewUserController)
    if err != nil {
        panic(err)
    }

    // Get the user controller from the container.
    var controller *UserController
    if err := container.Fill(controller); err != nil {
        panic(err)
    }

    // Set up the HTTP server.
    router := gin.Default()
    router.GET("/users", controller.GetUsers)
}