public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", Route = null)] HttpRequest req,
[Table("executionsTable", Connection = "StorageAccount")] ICollector <ExecutionRow> outputTable,
ILogger log)
{
log.LogInformation($"{FunctionNames.MortgageCalculatorFunction} start");
// Retrieve loan, interest and numberOfPayments from HTTP Request
#region [ Retrieve request parameters ]
decimal loan;
if (!GetLoanFromQueryString(req, out loan))
{
log.LogError($"Loan not valid");
return(new BadRequestObjectResult("Loan not valid"));
}
double interest;
if (!GetInterestFromQueryString(req, out interest))
{
log.LogError($"Annual Interest not valid");
return(new BadRequestObjectResult("Annual Interest not valid"));
}
uint nPayments;
if (!GetNumberOfPaymentsFromQueryString(req, out nPayments))
{
log.LogError($"Number of payments not valid");
return(new BadRequestObjectResult("Number of payments not valid"));
}
#endregion [ Retrieve request parameters ]
var calculatorResult =
await mortgageCalculator.CalculateMontlyRateAsync(loan, interest, nPayments);
#region [ Create the response ]
var executionRow = new ExecutionRow(DateTime.Now)
{
AnnualInterest = interest,
ErrorCode = calculatorResult.Error?.Code,
MonthlyRate = calculatorResult.Result,
MortgageLoan = loan,
NumberOfPayments = nPayments,
Result = calculatorResult.Succeed
};
outputTable.Add(executionRow);
#endregion [ Create the response ]
if (calculatorResult.Succeed)
{
return(new OkObjectResult(calculatorResult.Result));
}
return(new BadRequestObjectResult(calculatorResult.Error.Message));
}
