如何在中间件 nextjs 中使用 fetch Api

Question

我在 nextjs 中使用了一个中间件（ https://nextjs.org/docs/advanced-features/middleware ）

但我无法向 api 发送请求它向我显示的错误

unhandledRejection：TypeError：无法删除属性'Symbol（set-cookie）'

我的 miidleware.js

 import { get } from 'Base' import { redirect } from 'next/dist/server/api-utils' import { NextResponse } from 'next/server' export async function middleware(req) { const data = await fetch(process.env.NEXT_PUBLIC_API_BASE+"/seosite/getallredirect" ) console.log(data ) const { pathname,origin } = req.nextUrl const redirect = data?.redirects?.find(i.oldUrl == pathname); if(redirect){ if(redirect?.code == 301 || redirect?.code == null ) return NextResponse.redirect(origin+redirect.oldUrl) } return NextResponse.next() }

Answer 1

您必须将响应转换为 json

 const data = await (await fetch(process.env.NEXT_PUBLIC_API_BASE+"/seosite/getallredirect")).json()
  console.log(data)