Question

我正在使用Passport.js与React.js和MySQL一起实现用户注册和登录系统。

但是，当我点击获取下面的api路由的注册按钮时，我收到一个错误消息。错误为错误：未知身份验证策略“本地注册”

app.post('/api/signup', passport.authenticate('local-signup'));

下面是我的脚本，问题是当我尝试注册时

var passport = require('passport');

// load all the things we need
var LocalStrategy   = require('passport-local').Strategy;

// expose this function to our app using module.exports
module.exports = function(passport) {

    // =========================================================================
    // passport session setup ==================================================
    // =========================================================================
    // required for persistent login sessions
    // passport needs ability to serialize and unserialize users out of session

    // used to serialize the user for the session
    passport.serializeUser(function(user, done) {
        done(null, user.id);
    });

    // used to deserialize the user
    passport.deserializeUser(function(id, done) {
        con.query("select * from users where id = "+id,function(err,rows){  
            done(err, rows[0]);
        });
    });


    // =========================================================================
    // LOCAL SIGNUP ============================================================
    // =========================================================================
    // we are using named strategies since we have one for login and one for signup
    // by default, if there was no name, it would just be called 'local'

    passport.use('local-signup', new LocalStrategy({

        // by default, local strategy uses username and password, we will override with email
        //nameField : 'usernane',
        usernameField : 'username',
        passwordField : 'password',
        //locationField : 'location',

        passReqToCallback : true // allows us to pass back the entire request to the callback
    },
    function(req, username, password, done) {
      console.log("This is twas");

        // find a user whose email is the same as the forms email
        // we are checking to see if the user trying to login already exists
      con.query("select * from users where username = '"+username+"'",function(err,rows){
            console.log(rows);
            console.log("above row object");
            if (err)
                return done(err);
             if (rows.length) {
                return done(null, false, req.flash('signupMessage', 'That email is already taken.'));
            } else {

                // if there is no user with that email
                // create the user
                var newUserMysql = new Object();

               // newUserMysql.username = username;
                newUserMysql.username = username;
                newUserMysql.password = password; // use the generateHash function in our user model


            var insertQuery = "INSERT INTO users (username, password) values (" + username +"','"+ password +"')";
                    console.log(insertQuery);
                con.query(insertQuery,function(err,rows){
                newUserMysql.id = rows.insertId;

                return done(null, newUserMysql);
                }); 
            }   
        });
    }));

 };


The route below is fetched once the user clicks the register button.

app.post（'/ api / signup'，护照.authenticate（'local-signup'））;

Answer 1

当前创建函数的方式有问题。

当前在要导出的函数之外声明了

passport，并且您正在使用与该函数所需要的参数相同的passport变量。这就是为什么您会收到未知的策略错误的原因。

您可以将外部声明移至导出的函数中，删除参数，然后在不带任何参数的情况下调用函数。

module.exports = function () {
  var passport = require('passport');
  var LocalStrategy = require('passport-local').Strategy;

  // the rest of your passport configuration goes here...
  // return passport;
 };

或者您可以通过这种方式完成

module.exports = function (passport) {
  var LocalStrategy = require('passport-local').Strategy;
  // the rest of your passport configuration goes here...
  // return passport;
 };

然后在您需要配置的文件中，执行此操作

var passport = require('passport');
// ...
var config = require('/path/to/passport-function');
// then call config with passport
var passport_config = config(passport);
// you would then have to use passport_config if you want to use the newly-created strategy

我希望这会有所帮助。

使用Passport.js，React js，MySQL的用户注册和登录系统

1 个答案: