I will have 2 data schemas

• [x] Define Schema
• User - backend
• Transactions - frontend

User Schema will have 4 key value pairs

backend auth user schema

{ 
"name": string,
"email": string,
"password": string
}

full code

const UserSchema = new mongoose.Schema({ 
name: {
	type: String,
	required: true,
	},
email: {
	 type: String,
	 required: true,
	 unique: true,
	 },
	 
password: {
	type: String,
	required: true,
	},
	});
	
	const User = mongoose.model('user', UserSchema);
	
	export default User;

Transactions Schema will have 6 key value pairs

{
"_id": string, 
"amount": number,
"type": string, 
"category": string,
"description": string,
"date": string
}

full code - transactions frontend schema will be in a form

import mongoose from "mongoose";

const TransactionSchema = new mongoose.Schema({
//transactions are identified by users from the userschema in mongoose db
user: { 
type: mongoose.Schema.Types.ObjectId,
ref: "user",
required: true,
},
 
amount: {
type: Number,
required: true,}

type: {
type: String,
enum: ["income", "expense"],
},
 
category: {
type: String,
},

description: {
type: String,
}

date: {
type: Date,
default: Date.now,
},

});

const Transaction = mongoose.model('transaction', TransactionSchema)

export default Transaction;

Might add timestamps for both schemas