Node express API using class not inserting data - node.js

Question

Newbie in Node js, I am using Node JS to build APIs and using class. There are 2 routes till now, one is to fetch all users which is working fine, another is to insert new user which is not working. It is returning {} with status 500.
Here are the files.
index.js
import server from "./config/server.js";
import './config/database.js';
const PORT = process.env.PORT || 5000;
server.listen(PORT, () => {
console.log(`app running on port ${PORT}`);
});
config/database.js
import mongoose from "mongoose";
class Connection {
constructor() {
const url =
process.env.MONGODB_URI || `mongodb://localhost:27017/dev-muscles`;
console.log("Establish new connection with url", url);
mongoose.Promise = global.Promise;
// mongoose.set("useNewUrlParser", true);
// mongoose.set("useFindAndModify", false);
// mongoose.set("useCreateIndex", true);
// mongoose.set("useUnifiedTopology", true);
mongoose.connect(url);
}
}
export default new Connection();
config/server.js
import express from "express";
import UserController from "../src/models/controllers/UserController.js";
const server = express();
server.use(express.json());
server.get(`/users`, UserController.getAll);
server.post(`/users/create`, UserController.create);
export default server;
src/models/User.js
import mongoose from "mongoose";
const { Schema } = mongoose;
import validator from "validator";
class User {
initSchema() {
const schema = new Schema({
first_name: {
type: String,
required: true,
trim: true
},
last_name: {
type: String,
required: true,
trim: true
},
email: {
type: String,
required: true,
trim: true,
lowercase: true,
// validate(value) {
// if( !validator.isEmail(value) ) {
// throw new Error('Email is invalid')
// }
// }
},
phone: {
type: Number,
required: true,
trim: true
},
password: {
type: String,
required: true
}
});
// schema.plugin(validator);
mongoose.model("users", schema);
}
getInstance() {
this.initSchema();
return mongoose.model("users");
}
}
export default User;
src/controllers/UserController.js
import Controller from "./Controller.js";
import User from ".././models/User.js";
const userModelInstance = new User().getInstance();
class UserController extends Controller {
constructor(model) {
super(model);
}
}
export default new UserController(userModelInstance);
src/controllers/Controller.js
class Controller {
constructor(model) {
this.model = model;
this.getAll = this.getAll.bind(this);
this.create = this.create.bind(this);
}
async getAll(req, res) { // works fine
return res.status(200).send(await this.model.find({}));
}
async create(req, res) { // this is returning {} with status code 500
try {
// return res.send(req.body);
return res.status(201).send(await new this.model.save(req.body));
} catch (error) {
res.status(500).send(error);
}
}
}
export default Controller;

Answer 1

Refactor the create method like so.
const ItemToSave = new this.model(req.body);
const savedItem = await ItemToSave.save();
return res.status(201).send(savedItem);