Koa

Question

我用 koa-router 创建了路由器：

auth.js

const KoaRouter = require('koa-router');

const { signIn, signUp } = require('../controllers/auth');

const authRouter = new KoaRouter();

authRouter.post('/signin', signIn).post('/signup', signUp);

module.exports = authRouter;

而且我想在我的主应用程序中将它用作中间件。在express中，我可以只写app.use(authRouter)。但是Koa说中间件应该是一个函数。我找到了一个解决方案，并使用 koa-mount 包来解决这个问题，就像这样 app.use(mount(authRouter))。但现在它给出了这个错误：

if (!Array.isArray(middleware)) throw new TypeError('Middleware stack must be an array!') ^

TypeError: Middleware stack must be an array!

但是当我记录 authRouter 时，堆栈属性是路由数组：

Router {
  opts: {},
  methods:
   [ 'HEAD', 'OPTIONS', 'GET', 'PUT', 'PATCH', 'POST', 'DELETE' ],
  params: {},
  stack:
   [ Layer {
       opts: [Object],
       name: null,
       methods: [Array],
       paramNames: [],
       stack: [Array],
       path: '/signin',
       regexp: /^\/signin[\/#\?]?$/i },
     Layer {
       opts: [Object],
       name: null,
       methods: [Array],
       paramNames: [],
       stack: [Array],
       path: '/signup',
       regexp: /^\/signup[\/#\?]?$/i } ] }

完整代码如下：

const Koa = require('koa');
const KoaRouter = require('koa-router');
const mount = require('koa-mount');
const bodyParser = require('koa-bodyparser');

const config = require('./config');
const authRoutes = require('./routes/auth');

const app = new Koa();
const router = new KoaRouter();

console.log(authRoutes);
app.use(bodyParser());
app.use(router.routes()).use(router.allowedMethods());
app.use(mount(authRoutes));

app.listen(config.PORT || 3001);

Answer 1

我认为您只是缺少对 authRoutes 对象调用 .routes()。

const Koa = require('koa');
const KoaRouter = require('koa-router');
const mount = require('koa-mount');
const bodyParser = require('koa-bodyparser');

const config = require('./config');
const authRoutes = require('./routes/auth');

const app = new Koa();
const router = new KoaRouter();

console.log(authRoutes);
app.use(bodyParser());
app.use(router.routes()).use(router.allowedMethods());
// add this line 
app.use(authRoutes.routes()).use(authRoutes.allowedMethods());

app.listen(config.PORT || 3001);

Koa - TypeError: Middleware stack must be an array

Koa - TypeError: Middleware stack must be an array

javascript

middleware

node.js