I have a form done by HTML and I want to POST a new User in my server and DB Atlas done with express , mongoose and MongoDB Atlas(我有一个用HTML完成的表单，我想在服务器中发布一个新用户，并用express，mongoose和MongoDB Atlas完成DB Atlas。)
I don't know how to connect it and if any errors write the errors to the user : for example if the user already registered(我不知道如何连接它，是否有任何错误将错误写入用户：例如，如果用户已经注册)
Here is my form in HTML code:(这是我的HTML代码形式：)
<form class="register-form" method="POST" id="registerForm" action="/api/routes/registerUsers.js">
<div class="form-group">
<label for="first-name"> Choose a Username</label>
<input type="text" id="userName" name="userName" class="form-control" autocomplete="off">
</div>
<div class="form-group">
<label for="exampleInputEmail1"> Your Email address</label>
<input type="email" class="form-control " id="email" name="email" aria-describedby="emailHelp" autocomplete="off" >
<small id="emailHelp" class="form-text text-muted">We'll never share your email with anyone else.</small>
</div>
<div class="form-group">
<label for="exampleInputPassword1">Choose a Password</label>
<input type="password" class="form-control " id="password" name='password'>
</div>
<div class="form-group">
<label for="exampleFormControlSelect1">GENDER</label>
<select class="form-control" id="gender" name="gender" autocomplete="off">
<option>Male</option>
<option>Female</option>
</select>
</div>
<button onclick="registerData()" id="register-btn" type="submit" class="btn btn-primary btn-lg">CREATE YOUR ACCOUNT</button>
</form>
<script src="register.js" ></script>
I linked it to a vanilla JS file to extract the data in an object if this is unnecessary please tell me how to send the form data to my server(我将其链接到香草JS文件以提取对象中的数据（如果不需要），请告诉我如何将表单数据发送到服务器)
function registerData(){
event.preventDefault();
let userName = document.getElementById("userName").value;
let email = document.getElementById("email").value;
let password = document.getElementById("password").value;
let gender = document.getElementById("gender").value;
let user = {
userName,email,password,gender
}
console.log(user)
my server file :(我的服务器文件：)
const express = require("express");
const router = express.Router();
const app=express();
const path =require('path');
const bcrypt = require('bcryptjs')
let User = require('../models/users');
var options={
redirect:false
}
app.use(express.static(('../../FRONT/REGISTER')))
router.get('/register',(req,res,next)=>{
res.sendFile(path.join(__dirname + "/../../FRONT/REGISTER/register.html"))
})
// Handle incoming post requests to /register
router.post('/register',(req,res,next)=>{
let username = req.body.username;
let email = req.body.email;
let password =req.body.password;
let gender= req.body.gender
req.checkBody(username,"Username is required ! ").notEmpty();
req.checkBody(email,"Email is required ! ").isEmail();
req.checkBody(password,"Password is required ! ").notEmpty();
req.checkBody(gender,"Gender is required ! ").notEmpty();
let errors = req.validationErrors();
if(errors){
res.sendFile(path.join(__dirname + "/../../FRONT/REGISTER/register.html"))
}
else{
let newUser= new User({
username:username,
email:email,
password:password,
gender:gender
})
bcrypt.genSalt(10,(err,salt)=>{
bcrypt.hash(newUser.password,salt,(err,hash)=>{
if(error){
console.log(err)
}
newUser.password=hash;
newUser.save(err=>{
if(error){
console.log(err)
return;
}
else{
req.flash("You are now registered successfully")
res.redirect('/login');
}
})
})
})
}
})
module.exports = router;
schema:(模式：)
const mongoose = require ("mongoose");
require('mongoose-type-email');
// Create User Schema
const UserSchema = mongoose.Schema({
username:{type:String,
required:true},
email:{type:mongoose.SchemaTypes.Email,
required:true},
password:{type:String,
required:true},
gender:{type:String,
required:true},
})
ask by Hazem translate from so
与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
