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所以我正在尝试创建一个不和谐的机器人仪表板，并且我包括一个不和谐的 Oauth2 来获取用户信息。我的 Discord Oauth2 有效，但是在授权后，它将我重定向到主页，但 URL 有 token=undefined 。控制台确实记录“它有效！”。如何修复未定义的访问令牌？

http://localhost:3000/?token=undefined

var path = require('path');
const express = require('express');
const fetch = require('node-fetch');
const app = express();
require('dotenv').config();
const btoa = require('btoa');
const { catchAsync } = require('./utils.js')

const CLIENT_ID = process.env.CLIENT_ID;
const CLIENT_SECRET = process.env.CLIENT_SECRET;
const redirect = encodeURIComponent('http://localhost:3000/callback');

...

app.get('/login', (req, res) => {
    res.redirect(`https://discord.com/api/oauth2/authorize?client_id=${CLIENT_ID}&redirect_uri=${redirect}&response_type=code&scope=identify%20email%20guilds`);
  });

app.get('/callback', catchAsync(async (req, res) => {
    if (!req.query.code) throw new Error('NoCodeProvided');
    const code = req.query.code;
    const creds = btoa(`${CLIENT_ID}:${CLIENT_SECRET}`);
    const response = await fetch(`https://discordapp.com/api/oauth2/token?grant_type=authorization_code&code=${code}&redirect_uri=${redirect}`,
      {
        method: 'POST',
        headers: {
          Authorization: `Basic ${creds}`,
        },
      });
    const json = await response.json();
    console.log("it works!")
    res.redirect(`/?token=${json.access_token}`);
  }));
app.listen(3000)
4

1 回答 1

1

回调链接的设置方式似乎存在问题，因此我将其更改为如下所示，并且可以正常工作。

app.get('/callback', catchAsync(async (req, res) => {

    const data = {
        client_id: CLIENT_ID,
        client_secret: CLIENT_SECRET,
        grant_type: 'authorization_code',
        redirect_uri: redirect,
        code: req.query.code,
        scope: ['identify', 'email', 'guilds'],
    };
    
    const response = await fetch('https://discord.com/api/oauth2/token', {
    method: 'POST',
    body: new URLSearchParams(data),
    headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
    }
    })

    const json = await response.json();

    const fetchDiscordUserInfo = await fetch('http://discordapp.com/api/users/@me', {
  headers: {
    Authorization: `Bearer ${json.access_token}`,
  }
});
const userInfo = await fetchDiscordUserInfo.json();

    res.redirect('http://localhost:3000/dashboard')

console.log(userInfo);
于 2021-02-03T09:21:25.800 回答