@contappdigital/invoice-calculator

A invoice calculation library designed to compute subtotals, totals, taxes, discounts, surcharges, retentions, and more.

Install

npm install @contappdigital/invoice-calculator

Usage

import { InvoiceCalculator, InvoiceCalculationInput } from '@contappdigital/invoice-calculator';

const invoiceInput: InvoiceCalculationInput = {
      country: "DO",
      items: [
        {
          _id: "2",
          quantity: 1,
          unitPrice: 100,
          billable: true,
          taxes: [
            {
              percentage: 18,
              type: "ITBIS",
              taxType: {
                abbreviation: "ITBIS",
                abbreviationSlug: "itbis",
                name: "ITBIS",
              },
            }
          ],
        },
      ],
      paymentMethods: [
        {
          amount: 100,
        },
      ],
    };

const calculator = new InvoiceCalculator(invoiceInput);
const result = calculator.calculate();

License

@contappdigital/invoice-calculator is released under the MIT License.