laravel的用戶修改密碼與綁定郵箱的詳細操作

/**
     * 修改密碼
     */
    public function updatePassword(Request $request) {
        $request->validate([
            'old_password' => 'required|min:6|max:16',
            'password' => 'required|min:6|max:16|confirmed',
        ], [
            'old_password.required' => '舊密碼不能為空',
            'old_password.min' => '舊密碼最少6個字符',
            'old_password.max' => '舊密碼最多16個字符',
        ]);

        // 舊密碼
        $old_password = $request->input('old_password');
        // 用戶實例
        $user = auth('api')->user();
        // 驗證舊密碼是否正確
        if (!password_verify($old_password, $user->password)) {
            return $this->response->errorBadRequest('舊密碼不正確');
        } 
        // 更新用戶密碼  
        $user->password = bcrypt($request->input('password'));
        $user->save();

        return $this->response->noContent();
    }

 // 修改密碼
            $api->post('password/update', [PasswordController::class, 'updatePassword']);

<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\BaseController;
use App\Mail\SendEmailCode;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Mail;

class BindController extends BaseController
{
    /**
     * 獲取郵件的驗證碼
     */
    public function emailCode(Request $request) {
        $request->validate([
            'email' => 'required|email'
        ]);

        // 發送驗證碼到郵件
        Mail::to($request->input('email'))->queue(new SendEmailCode($request->input('email')));
        return $this->response->noContent();
    }

    /**
     * 更新郵箱
     */
    public function updateEmail(Request $request) {
        $request->validate([
            'email' => 'required|email',
            'code' => 'required'
        ], [
            'code.required' => "驗證碼不能為空",
        ]);

        // 驗證code是否正確
        if (cache($request->input('email')) != $request->input('code')) {
            return $this->response->errorBadRequest('驗證碼或郵箱錯誤！');
        }

        // 更新郵箱
        $user = auth('api')->user(); 
        $user->email = $request->input('email');
        $user->save();
        return $this->response->noContent();
    } 
}

  // 發送郵件驗證碼
            $api->post('email/code', [BindController::class, 'emailCode']);

            // 更新郵箱
            $api->post('email/update', [BindController::class, 'updateEmail']);

<?php

namespace App\Mail;

use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Cache;

class SendEmailCode extends Mailable
{
    use Queueable, SerializesModels;

    protected $email;
    /**
     * Create a new message instance.
     *
     * @return void
     */
    public function __construct($eamil)
    {
        $this->email = $eamil;
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        // 生成code
        $code = rand(1000, 9999);

        // 獲取郵箱

        // 使用緩存郵箱對應的code
        Cache::put($this->email, $code, now()->addMinute(5)); // 5分鐘過期

        return $this->view('emails.send-email-code', ['code' => $code]);
    }
}