req.body 将中间件应用于 GET 路由时为空

Question

我编写了一个用于身份验证的路由器和一个用于解析重定向参数并保存在会话中的中间件。但是在解析查询参数的时候，req.body和req.params都是空的

router.js

/* Route for Facebook login. This is the only login option for now. */

var router = require('express').Router();
var passport = require('passport');
var redirect = require('../middlewares/redirect');

/**
 * facebook oauth
 */
router.get('/facebook', redirect.parse(), passport.authenticate('facebook'));

redirect.js

/**
 * save the redirect parameter to session
 *
 * @param {Object} options options for the middleware
 */
module.exports.parse = function (options) {
  return function (req, res, next) {
    console.log(req.body);
    console.log(req.params);
    if (req.body.redirect) {
      req.session.redirect = req.body.redirect;
      console.log(req.body.redirect);
      console.log(req.session.redirect);
      req.session.save();
    }
    next();
  };
};

当我调用/auth/facebook?redirect=/groups时，输出是：

{}
{}

密码在Githubhttps://github.com/guoyunhe/shrgrp

Answer 1

You are calling GET and expecting data from req.body which is not gonna work

使用 GET 调用您可以通过两种方式获取数据：

if it is parameter then you can get in req.params

If it is query string then you can get in req.query

req.body 将中间件应用于 GET 路由时为空

req.body is empty when apply middleware to a GET route

javascript

node.js

express

body-parser