Express & mangoDB save only if all data is valid - node.js

Question

i have 3 tables "users" , "users_passwords", "users_emails"
"users" is the main table
users_password and users_email are relashionship OnetoOne with tables users
I am using this scheme in the models:
users_email :
const UserEmail = new mongoose.Schema({
user: {
type : mongoose.Schema.Types.ObjectId,
ref: 'User'
},
email: {
type : String,
require: [true, "Required E-mail"],
validate: [isEmail, "Please enter a valid email"]
}
})
users_password:
const UserPassword = new mongoose.Schema({
user: {
type : mongoose.Schema.Types.ObjectId,
ref: 'User'
},
password: {
type : String,
require: [true, "Required Password"],
minlength: [8, "Minimum passowrd lenght is 8 characters"]
}
})
Than in my controller i have the function regist
try{
const email = new UserEmail({
email: req.body.email
})
const auth = new UserAuth({
password: req.body.password,
})
const user = new User({
email: email._id,
auth: auth._id,
})
await email.save()
await auth.save()
const result = await user.save()
const {...data} = await result.toJSON()
res.send(data)
}catch{
....
}
What is happening is if the email is OK and valid it goes to password and if it fails on password will save the UserEmail.
What i want is if in any one of the tables fails don't execut the save!
I am realy new at express and mongoDb,i am learning and this is project to scholl thanks for help

Answer 1

validate them first, before save it into a database
try {
// check email function
function validateEmail(emailAdress) {
let regexEmail = /^\w+([\.-]?\w+)*#\w+([\.-]?\w+)*(\.\w{2,3})+$/;
if (emailAdress.match(regexEmail)) {
return true;
} else {
return false;
}
}
// check password function
function validatePassword(password) {
return password.length <= 8 ? false : true;
}
// check them here
if (!validateEmail(req.body.email)) return res.status(400).send("error email")
if (!validatePassword(req.body.password)) return res.status(400).send("error password")
const email = new UserEmail({
email: req.body.email
})
const auth = new UserAuth({
password: req.body.password,
})
const user = new User({
email: email._id,
auth: auth._id,
})
await email.save()
await auth.save()
const result = await user.save()
const { ...data } = await result.toJSON()
res.send(data)
} catch {
....
}