我刚刚开始学习 MEAN 堆栈并完成教程,其中有文件、api.js 和 auth.js。
在 api.js 中,我有以下路由结构,
var express = require('express');
var router = express.Router();
//Used for routes that must be authenticated.
function isAuthenticated (req, res, next) {
// if user is authenticated in the session, call the next() to call the next request handler
// Passport adds this method to request object. A middleware is allowed to add properties to
// request and response objects
//allow all get request methods
if(req.method === "GET"){
console.log('in console');
return next();
}
if (req.isAuthenticated()){
return next();
}
// if the user is not authenticated then redirect him to the login page
return res.redirect('/#login');
};
//Register the authentication middleware
router.use('/posts', isAuthenticated);
router.route('/posts')
.get(function(req,res){
res.send({message:'TODO: return all posts'});
})
.post(function(req,res){
res.send({message:'TODO: create new post'});
});
router.route('/posts/:id')
.get(function(req,res){
res.send({message:'TODO: return post with ID ' + req.params.id});
})
.put(function(req,res){
res.send({message:'TODO: modify post with ID ' + req.params.id});
})
.delete(function(req,res){
res.send({message:'TODO: delete post with ID ' + req.params.id});
});
module.exports = router;
在 auth.js 中,我有以下路由结构,
var express = require('express');
var router = express.Router();
module.exports = function(passport){
//sends successful login state back to angular
router.get('/success', function(req, res){
res.send({state: 'success', user: req.user ? req.user : null});
});
//sends failure login state back to angular
router.get('/failure', function(req, res){
res.send({state: 'failure', user: null, message: "Invalid username or password"});
});
//log in
router.post('/login', passport.authenticate('login', {
successRedirect: '/auth/success',
failureRedirect: '/auth/failure'
}));
//sign up
router.post('/signup', passport.authenticate('signup', {
successRedirect: '/auth/success',
failureRedirect: '/auth/failure'
}));
//log out
router.get('/signout', function(req, res) {
req.logout();
res.redirect('/');
});
return router;
}
上面的代码工作正常,但是每当我尝试重写 api.js 的代码(如下面的 auth.js 结构)时,
module.exports = function(){
router.get('/posts',function(req,res)
{
res.send({message:'TODO: return all posts'});
});
router.post('/posts',function(req,res)
{
res.send({message:'TODO: add new post'});
});
router.get('/posts/:id',function(req,res)
{
res.send({message:'TODO: return post with ID ' + req.params.id});
});
router.put('/posts/:id',function(req,res)
{
res.send({message:'TODO: edit post with ID ' + req.params.id});
});
router.delete('/posts/:id',function(req,res)
{
res.send({message:'TODO: delete post with ID ' + req.params.id});
});
return router;
}
这行不通。下面是每当我发出任何发布或获取请求时 Node 命令提示符的屏幕截图。我是否以错误的方式重写代码?
最佳答案
您现在正在 api.js
中导出函数与 Router 实例。如果您没有相应地更改使用 api.js
的文件,您将挂载一个函数而不是 Router。
因此,对于新的 api.js
,您的父文件需要执行以下操作:
var apiRoutes = require('./api')();
app.use('/api', apiRoutes);
而不是类似:
var apiRoutes = require('./api');
app.use('/api', apiRoutes);
关于javascript - Express.js 中的“router.get”与 'router.route.get',我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33617688/