Mews.Fiscalizations.Hungary 6.0.2.7

Mews.Fiscalizations.Hungary is a .NET library that was built to help reporting of e-invoices to the Hungarian authorities (Online Szamla - Nemzeti Adó- és Vámhivatal). Current supported version is 3.0.

📃 Description

This library uses the NAV Online Invoice System to report e-invoices, please check their Documentation.

Useful links: API documentation Test environment Production environment

⚙️ Installation

The library can be installed through NuGet packages or the command line as mentioned below:

Install-Package Mews.Fiscalizations.Hungary

🎯 Features

• Functional approach via FuncSharp.
• No Hungarian abbreviations.
• Early data validation.
• Asynchronous I/O.
• All endpoints are covered with tests.
• Intuitive immutable DTOs.
• Pipelines that run on both Windows and Linux operating systems.
• Cross platform (uses .NET Standard).

📦 NuGet

We have published the library as Mews.Fiscalizations.Hungary.

👀 Code Examples

Listed below are some of the common examples. If you want to see more code examples, please check the Tests.

Creating NAV client There are 3 required properties that need to be provided when creating the NAV client

1. Technical user: technical user credentials can be obtained from the NAV website dashboard
2. Software identification: Contains information regarding the software performing data reporting
3. NAV Environment: (Test/Production)

var technicalUser = new TechnicalUser(
    login: Login,
    password: Password,
    signingKey: SigningKey,
    taxId: TaxPayerId,
    encryptionKey: EncryptionKey
);
var softwareIdentification = new SoftwareIdentification(
    id: "123456789123456789",
    name: "Test",
    type: SoftwareType.LocalSoftware,
    mainVersion: "1.0",
    developerName: "Test",
    developerContact: "test@test.com"
);
var navClient = new NavClient(technicalUser, softwareIdentification, NavEnvironment.Test);

Obtaining the Exchange token which is required for each request

var exchangeToken = await client.GetExchangeTokenAsync();

Creating the supplier info

var supplierInfo = new SupplierInfo(
    taxpayerId: supplierTaxpayerId,
    vatCode: VatCode.Create("2").Success.Get() // check the documentation for more information about each VatCode.,
    name: Name.Create("supplier name").Success.Get(),
    address: supplierAddress
);

Creating invoice items

var itemAmount = new Amount(net: new AmountValue(1694.92m), gross: new AmountValue(2000), tax: new AmountValue(305.08m));
var unitAmount = new ItemAmounts(itemAmount, itemAmount, 0.18m);
var items = new[]
{
    new InvoiceItem(
        consumptionDate: DateTime.UtcNow.Date,
        totalAmounts: new ItemAmounts(itemAmount, itemAmount, 0.18m),
        description: Description.Create("Item 1 description").Success.Get(),
        measurementUnit: MeasurementUnit.Night,
        quantity: 1,
        unitAmounts: unitAmount,
        exchangeRate: ExchangeRate.Create(1).Success.Get()
    )
};

Creating an invoice

var invoice = new Invoice(
    number: invoiceNumber ?? InvoiceNumber.Create($"INVOICE-{Guid.NewGuid()}").Success.Get(),
    issueDate: nowUtc,
    supplierInfo: supplierInfo,
    receiver: receiver,
    items: Sequence.FromPreordered(items, startIndex: 1).Get(),
    paymentDate: nowUtc,
    currencyCode: CurrencyCode.Create("EUR").Success.Get(),
    paymentMethod: PaymentMethod.Card
);

Reporting invoices

return await client.SendInvoicesAsync(
    token: exchangeToken.SuccessResult,
    invoices: Sequence.FromPreordered(new[] { invoice }, startIndex: 1).Get()
);

In case of rebating/modifying/changing an invoice It is possible to report the modified invoice through SendModificationDocumentsAsync API.