错误：未知的身份验证策略“spotify”

Question

当我尝试我的代码“错误：未知身份验证策略“spotify”时出现错误。我什至尝试用谷歌搜索这个问题，但找不到答案

更新：我更新了我的代码，以便为帮助我的人提供答案

代码

const passport = require('passport')
const SpotifyStrategy = require('passport-spotify').Strategy
const userWebData = require('../model/userWebSchema')

passport.serializeUser((user, done) => {
    const u = user
    done(null, u)
})
passport.deserializeUser(async(spotifyID, done)=> {
    try{
        const data = await userWebData.findOne({ spotifyID: spotifyID})
        const user = data
        return user ? done( null, user) : done(null, null)
    }catch(e){
        console.log(e)
        done(e, null)
    }
})
passport.use(
    new SpotifyStrategy({
        clientID: 'Clients_ID_That_I_Wont_Show',
        clientSecret: 'Clients_Secret_That_I_Wont_Show',
        callbackURL: 'http://localhost:3001/',
        scope: ["user-modify-playback-state", "user-read-private","user-library-read"]
    }, async(accessToken, refreshToken, expires_in, profile, done)=>{
        const userData = await userWebData.findOne({ spotifyID: profile.id})
        if(userData){
            console.log(`User ${profile.displayName} found`)
            return done(err, userData);
        }else{
            let profiles = await userWebData.create(
                {
                    spotifyID: profile.id,
                    spotifyName: profile.displayName,
                    spotifyFollowers: profile.followers,
                }
            )
            profile.save()
            console.log(`New User ${profile.displayName} Created`)
            return done(err, userData);
        }
    }
    )
)

Answer 1

您还必须在使用 passport-spotify 包进行身份验证之前导入它。首先，安装包 (npm i passport-spotify)，然后在你的文件中 require 它：

const SpotifyStrategy = require('passport-spotify').Strategy;

然后，您必须先调用passport.use() 函数才能使用passport 进行身份验证：

passport.use(
  new SpotifyStrategy(
    {
      clientID: client_id,
      clientSecret: client_secret,
      callbackURL: 'http://localhost:8888/auth/spotify/callback'
    },
    function(accessToken, refreshToken, expires_in, profile, done) {
      User.findOrCreate({ spotifyId: profile.id }, function(err, user) {
        return done(err, user);
      });
    }
  )
);

最后，您可以将其用作 Express 中间件。您修改后的代码如下所示：

const express = require('express')
const app = express()
const passport = require('passport')
const SpotifyStrategy = require('passport-spotify').Strategy;

passport.use(
  new SpotifyStrategy(
    {
      clientID: client_id,
      clientSecret: client_secret,
      callbackURL: 'http://localhost:8888/auth/spotify/callback'
    },
    function(accessToken, refreshToken, expires_in, profile, done) {
      User.findOrCreate({ spotifyId: profile.id }, function(err, user) {
        return done(err, user);
      });
    }
  )
);
app.get('/', passport.authenticate('spotify'), (req, res)=>{
    res.redirect('http://localhost:3001/user')
}) 
app.get('/user', (req, res) => {
    if(req.user == undefined){res.status(401).redirect('http://localhost:3001/')}else{res.send(req.user)}
})

module.exports = app

参考http://www.passportjs.org/packages/passport-spotify/