How to rollback mongodb using mongoose - mongodb

Question

I have an array as below.
const array =
[
{ name: 'Tom',
age: '30'
},
{ name: 'Sam',
age: '24'
}
]
And I create this array using mongoose.
Schema.create(array)
'name' and 'age' are required. Therefore in this case, they are created well.
But When I put this array,
const array =
[
{ name: 'Tom',
age: '30'
},
{ name: 'Sam'}
]
Tom is created but Sam is not created as it doesn' t have age value.
When one of those has an error during create, I want to not save nothing at all.
It's becuase 'front client' have to try insert again when receiving error response.
How can I control transaction using mongo and mongoose? Thank you for reading it.

Answer 1

You can create a Schema model for that and add required to it :
var mongoose = require('mongoose')
const Schema = mongoose.Schema
const myUserSchema = new Schema ({
users : [{
name: {
type: String,
required: true
},
age: {
type: String,
required: true
}
}]
})
var myUser = mongoose.model('myUser', myUserSchema)
Then:
const array =
[
{ name: 'Tom',
age: '30'
},
{ name: 'Sam'}
]
const newUser = new myUser({
users: array
})
newUser.save((err, user)=>{
if (err) {
console.log(err)
}
})
It should validate your array at the time when you try to save it and throw an error in case if something is missing.
Example of thrown error:
ValidationError: myUser validation failed: users.1.age: Path `age` is required