node.js - express, when I click to log in, a jump error occurs and the request data is undefined. Please help me, brother

Question

Just say user is undefined and I’m so anxious! Please help

Answer 1

Set value can only be a session problem.

1. Install middleware express-session
Documentation

$npm install express-session

2.Mount

var session = require('express-session')
app.use(session({
  secret: 'keyboard cat',
  resave: false,
  saveUninitialized: true,
  cookie: { secure: true }
}))