So verwenden Sie API-Routing in NextJS 13

Question

Bei der Verwendung von Express habe ich Benutzer wie request.user:

gespeichert

import jwt from "jsonwebtoken"; 
import asyncHandler from "express-async-handler"; 
import User from "../models/userModel.js";

const protect = asyncHandler(async (req, res, next) => {
  let token;
  token = req.cookies.jwt;
  if (token) {
    try {
      const decoded = jwt.verify(token, process.env.JWT_SECRET);
      req.user = await User.findById(decoded.userId).select("-password");
      next();
    } catch (error) {
      res.status(401);
      throw new Error("Not authorized , invalid token");
    }
  } else {
    res.status(401);
    throw new Error("Not authorized , no token");
  }
});

export { protect };

And I was able to get the current user like this : 

const createPost = asyncHandler(async (req, res) => {
  const { content, image } = req.body;
  const user = req.user;

Aber wie macht man das mit NextJS 13 API-Routing und Middleware und wie verwendet man Cookies? Ich bin neu bei NextJS und wäre daher für jede Hilfe sehr dankbar.

Answer 1

在 Next.js 中，您可以使用 NextRequest 和 NextResponse 上的 cookie 扩展来读取和操作 cookie。具体方法如下：

首先，您需要从 next/headers 导入 cookie：

import { cookies } from 'next/headers'

然后，你可以得到这样的cookie：

const cookieStore = cookies()
const token = cookieStore.get('token')

要设置 cookie，您需要使用 Set-Cookie 标头返回一个新的响应：

return new Response('Hello, Next.js!', {
  status: 200,
  headers: { 'Set-Cookie': `token=${token}` },
})

您还可以使用 NextRequest 对象来读取 cookie：

export async function GET(request) {
  const token = request.cookies.get('token')
}

对于传入的请求，cookie 具有以下方法：get、getAll、set 和 delete cookies。您可以使用 has 检查 cookie 是否存在，或使用clear 删除所有 cookie。

对于传出响应，cookie 具有以下方法 get、getAll、set 和 delete。

以下是如何使用这些方法的示例：

import { NextResponse } from 'next/server'
import type { NextRequest } from 'next/server'

export function middleware(request: NextRequest) {
  let cookie = request.cookies.get('nextjs')
  console.log(cookie) // => { name: 'nextjs', value: 'fast', Path: '/' }
  const allCookies = request.cookies.getAll()
  console.log(allCookies) // => [{ name: 'nextjs', value: 'fast' }]

  request.cookies.has('nextjs') // => true
  request.cookies.delete('nextjs')
  request.cookies.has('nextjs') // => false

  const response = NextResponse.next()
  response.cookies.set('vercel', 'fast')
  response.cookies.set({
    name: 'vercel',
    value: 'fast',
    path: '/',
  })
  cookie = response.cookies.get('vercel')
  console.log(cookie) // => { name: 'vercel', value: 'fast', Path: '/' }

  return response
}