Question

我想写一个生成otp的路由。并首先检查用户是否存在。如果用户存在发送otp。如果不是先将用户保存在db中，然后生成otp。还想在db中设置生存otp数据的时间为360秒。请告诉我我做错了什么。当运行以下代码时，它会给出无法设置null属性的错误。

TypeError：无法设置属性＆＃39; mobileNo＆＃39;为null

router.route('/generateOtp/:mobileNo').get(function (req, res) {
    Account.findOne({ mobileNo: req.params.mobileNo }, function (err, account) {

        //below is writeen to check if account exist with above mobile no
        if(account===null)
        { 
            account.mobileNo = req.body.mobileNo;

            //below for a is  random 4 digit code 
            account.OtpNo=a;

            //here i am trying to saving the otp and mobile no in mongo db
            newAccount.save(function (err) {
                if (err) {
                    res.send(err);
                }
                console.log("Account added");
            });

            //console.log(account);
        }


        else
        //if mobile no already exist than just gentating 4 digit code and saving to monodb
        {
            account.mobileNo = req.body.mobileNo;
            account.OtpNo = a;
            newAccount.save(function (err) {
                if (err) {
                    res.send(err);
                }
                console.log("Account added");
            });  
        }
    });
});

我的架构如下： -

var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var AccountSchema = new Schema({
    mobileNo:{
        type:String,
        required:true,
        unique:true
    },
    OtpNo:{
        type:String,
        required:true,
        //unique:true
        createdAt: 1,
        expireAfterSeconds: 300
    }
});

module.exports = mongoose.model('account', AccountSchema);

Answer 1

您正试图在mobileNo帐户上设置null，因此您正在

TypeError：无法将属性'mobileNo'设置为null

应该是

if( account === null )
{ 
    account = {}; // or create new account
    account.mobileNo = req.body.mobileNo;
    account.OtpNo = a;
    //save this account
}

无法设置null属性

1 个答案: