javascript - Mongoose findOne() callback returning null -

i'm trying find user in node app mongoose using

var user = require('../app/models/user');  function mongotest() {     var publicaddress = "0x8a6be8979340faa30020b0c1f617d8fd4309679f";     user.findone({"publicaddress": publicaddress}, (err, user) => {         if (err) {             res.status(500).send(err)         } else {             console.log(user);         }     }); } 

and err , user return null. other questions here (this , this), seems related mongoose pluralising collections. however, don't think that's issue because users.js has

module.exports = mongoose.model('user', userschema); // have tried module.exports = mongoose.model('user', userschema, 'user'); 

for completeness, users.js is

var mongoose = require('mongoose'); var bcrypt = require('bcrypt-nodejs');  // define schema our user model var userschema = mongoose.schema({     local: {         username: string,         password: string,         picturecaption: string,         publicaddress: string,         contractaddress: string     } }); 

finally, i'm sure public address exists because can see in mongodb robo 3t.

in userschema publicaddress part of local object.

var userschema = mongoose.schema({     local: {         username: string,         password: string,         picturecaption: string,         publicaddress: string,         contractaddress: string     } }); 

you trying find object publicaddress it's inside local object. should edit query follows result.

user.findone({"local.publicaddress": publicaddress}, (err, user) => {         if (err) {             res.status(500).send(err)         } else {             console.log(user);         }     });