Mortgage Calculator

MortgageCalculator.Console

A simple console app that takes in a file with the following format:

amount: 100000
interest: 5.5%
downpayment: 20000
term: 30

NOTE: the last line of input is a blank line. The term is given in years. The interest can be given a percentage or a digit. The downpayment or the amount can be represented in US money standard, i.e. $125,000.00 The 4 fields can be in any order.

it will return a JSON string as output in the console, such as:

{
    "monthly payment": 454.23,
    "total interest": 83522.8
    "total payment" 163522.8
}

MortgageCalculator.Func

an azure function app that takes in a POST Request with the following JSON data:

{
    "amount": 100000,
    "interest": 0.055,
    "downpayment: 20000,
    term: 30
}

NOTE: percentage must be in decimal, amount and downpayment must be numerical, and term must be an interger.

How to run:

1. Install .NET Core 2.1 or later:
2. open command line or powershell and navigate into MortgageCalculator project.
3. This program takes a file name as a parameter.
4. example: dotnet run loan1.txt.

How to test:

1. open command line or powershell and navigate into MortgageCalculator.Tests project.
2. execute dotnet test to run all tests.
3. for only unit tests, execute dotnet test --filter Category=unit
4. for only integration tests, execute dotnet test --filter Category=integration

Future potential features:

• Process multiple mortgage calculations in one batch.
• Allow user to specify file name to write the json output into.