yjy_fiscal_printer 0.0.1

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Fiscal Printer #

In order to easily interface with different brands of fiscal printers and use their same functions, this module defines a unified interactive data structure and interfaces. By implementing these interfaces to interact with a certain certain brand of fiscal printer.

Interactive data structure #

Fiscal.Receipt

Fiscal.Report

Fiscal.Cancel

Fiscal.Command

Commands

Interfaces #

Usage #

• Epson Fiscal ePOS-Print XML Examples

// Create a client
final fprinter = new EpsonXmlHttpClient(epson.Config(
    host: '192.168.1.1',
    deviceId: 'local_printer',
    timeout: 10000
));

// Fiscal receipt
await fprinter.printFiscalReceipt(epson.Receipt(
    sales: [
        epson.Sale(
            type: Fiscal.ItemType.HOLD,
            description: 'A',
            quantity: 1,
            unitPrice: 5
            ),
        epson.Sale(
            type: Fiscal.ItemType.HOLD,
            description: 'B',
            quantity: 2,
            unitPrice: 2.5
            ),
        epson.Sale(
            type: Fiscal.ItemType.HOLD,
            description: 'C',
            quantity: 3,
            unitPrice: 3
        ),
    ],
    payments: [
      epson.Payment(
            description: 'Payment in cash',
            payment: 19
      )
    ]
));

// Fiscal Report
await fprinter.printFiscalReport(epson.Report(
    type: Fiscal.ReportType.DAILY_FISCAL_CLOUSE,
));

• Custom Protocol Examples
• Note: unit quantity multiplied by 1000, unit price multiplied by 1000, include the discount, payment

// Create a client
const fprinter = new CustomXmlHttpClient(custom.Config(
    host: '192.168.1.1',
    fiscalId: 'STMTE500432', // 11 digits
));

// Fiscal receipt
await fprinter.printFiscalReceipt(custom.Receipt(
    sales: [
        custom.Sale(
            type: Fiscal.ItemType.HOLD,
            description: 'A',
            quantity: 1 * 1000,
            unitPrice: 5 * 100
        ),
        custom.Sale(
            type: Fiscal.ItemType.HOLD,
            description: 'B',
            quantity: 2 * 1000,
            unitPrice: 2.5 * 100
        ),
        custom.Sale(
            type: Fiscal.ItemType.HOLD,
            description: 'C',
            quantity: 3 * 1000,
            unitPrice: 3 * 100
        ),
    ],
    payments: [
        custom.Payment(
            description: 'Payment in cash',
            payment: 19 * 100,
            paymentType: 1
        )
    ]
));

// Fiscal Refund
// step 1 request to make sure the annulment is possible, if responseBuf === 1 then execute step 2 
await fprinter.printCancel(custom.Cancel(
    docRefZ: '0021',
    docRefNumber: '0034',
    docDate: '011022', // DDMMYY
    printPreview: CustomProtocol.EnableType.DISABLE,
    fiscalSerial: 'STMTE500432',
    checkOnly: CustomProtocol.EnableType.ABLE, 
    codLottery: 'ASDSFES7',
));

// step 2 to proceed with the actual void request
await fprinter.printCancel(custom.Cancel(
    docRefZ: '0021',
    docRefNumber: '0034',
    docDate: '011022', // DDMMYY,
    printPreview: CustomProtocol.EnableType.DISABLE,
    fiscalSerial: 'STMTE500432',
    checkOnly: CustomProtocol.EnableType.DISABLE,
    codLottery: 'ASDSFES7',
));

// Fiscal Report
await fprinter.printFiscalReport(custom.Report(
    type: CustomProtocol.ReportType.DAILY_FISCAL_CLOUSE,
));

// Fiscal Command
await fprinter.executeCommand([custom.Command(
    code: CustomProtocol.CommandCode.OPEN_DRAWER
)]);

Implemented #