Public Pei loan calculator

https://gattin.pei.is/#/calculator

The calculator uses 2 steps to display how distributions of installments could be for certain amounts.

Note! the maximum amount is always 2.000.0000

Postman collection :

Step 1 :

The user must enter an amount that will be calculated to show installments.

Then the API call is used to get a number of installments for that amount.
API call : https://gattin.pei.is/api/paymentoptions/getpreview?amount={TheAmount}
API call result :

{
    "claimOptions": {
        "minNumberOfInstallments": 1,
        "maxNumberOfInstallments": 36,
        "availableExtraMonths": 0
    },
    "creditCardOptions": {
        "minNumberOfInstallments": 1,
        "maxNumberOfInstallments": 36,
        "availableExtraMonths": 0
    }
}

In the result the “claimOptions” set should be used for display number of available installment´s months.

`claimOptions`	Description

`claimOptions`	Description
`minNumberOfInstallments`	Minimum number of installments available.
`maxNumberOfInstallments`	Maximum number of installments available for that certain amount

Step 2 :

The next API call is used to get information about the installments and APR “Árleg hlutfallstala kostnaðar“ based upon the amount and how many installments the user wants.

API call : https://gattin.pei.is/api/calculator?amount={TheAmount}&numberOfInstallments={NumberOfInstallments}

API call result:

{
    "installments": [
        {
            "dueDate": "2022-11-02T00:00:00",
            "finalDueDate": "2022-11-02T00:00:00",
            "principal": 3979.0,
            "contractInterest": 86.0,
            "lendingFee": 0.0,
            "noticeAndPaymentFee": 90.000,
            "installmentFee": 14.0,
            "total": 4169.000
        },
        {
            "dueDate": "2022-12-02T00:00:00",
            "finalDueDate": "2022-12-02T00:00:00",
            "principal": 4021.0,
            "contractInterest": 43.0,
            "lendingFee": 0.0,
            "noticeAndPaymentFee": 90.000,
            "installmentFee": 14.0,
            "total": 4168.000
        }
    ],
    "total": 8337.000,
    "annualPercentageRate": 40.273596537069533951580524450,
    "isFactored": false
}

`root`	Description

`root`	Description
`total`	Total amount with cost of installments
`annualPercentageRate`	APR
`isFactored`	Is installment factored.

`installments`	Description

`installments`	Description
`dueDate`	Due date
`finalDueDate`	Final due date
`principal`	Principal
`contractInterest`	Contract Interest
`lendingFee`	Lending fee
`noticeAndPaymentFee`	Notice and payment fee
`installmentFee`	Installment fee
`total`	Total amount of installment