Create a new api endpoint for getting user balance

[ilyaskarim]

Task 1: Create a new api endpoint for getting user balance

The api endpoint should be GET /api/v1/users/getUserBalance, the initial code is already in place, you just need to implement the logic to get the user balance from the database and return it as a response. The response should be in the format below:

{
  "message": "User balance retrieved successfully",
  "balance": "1000"
}

Task 2: Create a new api endpoint for getting user transactions

The api endpoint should be GET /api/v1/users/getTransactionsByUser, the initial code is already in place, you just need to implement the logic to get the user transactions from the database and return it as a response. The response should be in the format below:

{
  "message": "User transactions retrieved successfully",
  "transactions": [
    {
      "id": "1",
      "amount": "1000",
      "type": "credit",
      "createdAt": "2021-07-01T00:00:00.000Z"
    },
    {
      "id": "2",
      "amount": "500",
      "type": "debit",
      "createdAt": "2021-07-01T00:00:00.000Z"
    }
  ]
}

If we send a query parameter showBalance, it will return balance as well, so the response will be in the format below:

{
  "message": "User transactions retrieved successfully",
  "balance": 500,
  "transactions": [] // array of transactions
}