Getting started

Installing

Download from npm:

npm i --save posnetjs

Make sure that the protocol is USB

The interface is selected in the printer menu.

Konfiguracja → 1 Parametry ogólne → 7 Funkcje komunik. → 1 Interfejs PC.

The baudRate should be set to 9600

Konfiguracja → Konfig. sprezetu → 7 Porty komunik. → 1 COM →  9600 → 1 Brak

Example of usage:

import { BeepCommand, PaymentFormType, Posnet, TransactionCencelCommand, TransactionManager } from './posnet';

(async () => {
  try {

    console.log('available devices: ', await Posnet.getAvailableDevices());

    const posnet = new Posnet({
      debug: {
        send: true,
        receive: true,
      },
    });

    await posnet.bootstrap();

    await posnet.execute(new BeepCommand());
    await posnet.execute(new TransactionCencelCommand());


    const transactionManager = new TransactionManager(posnet);
    await transactionManager.execute({
      buyer: {
        invoiceNumber: '251/FA/2024',
        nipNumber: 'B10777803',
        paymentDeadline: '2024-12-31',
        paymentForm: 'CASH / CARD',
        purchaserName: 'Grabby Innovations S.L\L04289 La Huelga, Almería',
      },
      products: [{
        name: 'Pepsi 2L',
        unitPrice: 1000,
        totalAmount: 2000,
        quantity: 2,
        vatRate: 0,
        discount: {
          total: 200,
        },
      }],
      payments: [{
        value: 1000,
        type: PaymentFormType.CARD,
      }, {
        value: 800,
        type: PaymentFormType.CASH,
      }],
      end: {
        total: 1800,
        valuePaymentForms: 1800,
      }
    });
  } catch(error) {
    console.log('An error happened:');
    console.error(error);
  }
})();

Available commands

Manager	Command	Description	Class
-	BeepCommand	Trigger a beep sound on kasa fiskalna	beep.command.ts
-	DisplayTextCommand	Random information line on a display	display-text.command.ts
-	FooterGetCommand	Reading of information lines in footer	footer-get.command.ts
-	FooterSetCommand	Programming information lines in footer	footer-set.command.ts
-	HeaderGetCommand	Header reading	header-get.command.ts
-	HeaderSetCommand	Header programming	header-set.command.ts
-	StatusCommand	General status	status.command.ts
-	TotalizersStatusCommand	Totalizers status	totalizers-status.command.ts
TransactionManager	-	Group of basic commands in order to create a transaction	manager/transaction.manager.ts
TransactionManager	TransactionCencelCommand	Cancellation of transaction or printout	transaction/transaction-cancel.command.ts
TransactionManager	TransactionEndCommand	End of transaction	transaction/transaction-end.command.ts
TransactionManager	TransactionInitCommand	Transaction initialization	transaction/transaction-init.command.ts
TransactionManager	TransactionLineCommand	Transaction Line	transaction-line.command.ts
TransactionManager	TransactionPaymentCommand	Payment form in transaction	transaction-payment.command.ts
VAT - TransactionVatBuyerCommand	TransactionVatBuyerCommand	Vat invoice intialization	transaction-vat-buyer.command.ts
VAT - TransactionVatFreedataCommand	TransactionVatFreedataCommand	??? not in the manual	transaction-vat-freedata.command.ts
VAT - TransactionVatInitCommand	TransactionVatInitCommand	Vat invoice intialization	transaction-vat-init.command.ts
VAT - TransactionVatNumber	TransactionVatNumber	??? not in the manual	transaction-vat-number.command.ts

Developing

• Clone the repository
• Install dependencies (npm install)
• Run example.ts -> npm run start