javascript - express routing problem

Question

First determine whether there is a cookie, if not, render login_index
There is a form in login_index to submit a post request api/user/login,
Click the submit button, why can't the route be routed to app.use('api' ,xxx)? Through console.log, we know that the content in the if in else is indeed executed

Answer 1

Answer 2

You must use app.use吗？
正常来写app.use('/api')应该写在这个中间件的下面，然后这里应该写res.redirect to jump here