Discord OAuth2 令牌（错误请求）

Question

我目前正在为 Discord OAuth2 实施开发后端并遇到问题。我尝试了几种方式来实现身份验证，但都没有用。

我有以下 OAuth2 链接：https://discord.com/oauth2/authorize?client_id=1000000000000000000&redirect_uri=http%3A%2F%2Flocalhost%3A3000%2Fauth&response_type=code&scope=identify&state=LdVG6BIrDwbgbbXacw2l

客户端在端口 3000 上运行，我的后端在端口 3001 上运行。当 discord 将您从身份验证返回到 http://localhost:3000 时，客户端正在从 discord 抓取代码并检查状态。然后使用代码向后端（http://localhost:3001/auth/discord）发送请求。然后执行以下代码：

import express from 'express';
import { readFileSync } from 'fs';
import axios from 'axios';
import btoa from 'btoa'

const router = express.Router();
const config = JSON.parse(readFileSync('config.json'));

router.post("/discord", async (req, res) => {

    const { code } = req.body;

    const data = {
        'client_id': config['CLIENT_ID'],
        'client_secret': config['CLIENT_SECRET'],
        'grant_type': 'authorization_code',
        'code': code,
        'redirect_uri': 'http://localhost:3001/auth/discord',
        'scope': 'identify'
    }

    const tokenResponse = await axios.post(
        'https://discord.com/api/oauth2/token',
        data,
        {headers: { 'Content-Type': 'application/x-www-form-urlencoded' }}
    )
    .catch(e => e);

    res.json(tokenResponse);

});

export { router as userRouter };

我还在 Discord 应用程序中添加了以下重定向 URI： http://localhost:3000/auth, http://localhost:3001/auth/discord, http://localhost:3000/auth/discord（我不知道我是否需要这个）

post请求抛出如下错误：

{
    "message": "Request failed with status code 400",
    "name": "AxiosError",
    "stack": "AxiosError: Request failed with status code 400\n    at settle (file:///C:/users/felix/desktop/valolytics/server/node_modules/axios/lib/core/settle.js:19:12)\n    at IncomingMessage.handleStreamEnd (file:///C:/users/felix/desktop/valolytics/server/node_modules/axios/lib/adapters/http.js:556:11)\n    at IncomingMessage.emit (node:events:525:35)\n    at endReadableNT (node:internal/streams/readable:1359:12)\n    at process.processTicksAndRejections (node:internal/process/task_queues:82:21)",
    "config": {
        "transitional": {
            "silentJSONParsing": true,
            "forcedJSONParsing": true,
            "clarifyTimeoutError": false
        },
        "adapter": [
            "xhr",
            "http"
        ],
        "transformRequest": [
            null
        ],
        "transformResponse": [
            null
        ],
        "timeout": 0,
        "xsrfCookieName": "XSRF-TOKEN",
        "xsrfHeaderName": "X-XSRF-TOKEN",
        "maxContentLength": -1,
        "maxBodyLength": -1,
        "env": {},
        "headers": {
            "Accept": "application/json, text/plain, */*",
            "Content-Type": "application/x-www-form-urlencoded",
            "User-Agent": "axios/1.3.4",
            "Content-Length": "217",
            "Accept-Encoding": "gzip, compress, deflate, br"
        },
        "method": "post",
        "url": "https://discord.com/api/oauth2/token",
        "data": "client_id=1000000000000000000&client_secret=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&grant_type=authorization_code&code=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&redirect_uri=http%3A%2F%2Flocalhost%3A3001%2Fauth%2Fdiscord&scope=identify"
    },
    "code": "ERR_BAD_REQUEST",
    "status": 400
}

我尝试了几种不同的 post 请求实现，都导致了这个 400 Bad Request 错误。谁能帮我这个？这么多TY<3