NLightning.Bolt11.Blazor 5.0.0

NLightning.Bolt11

This library provides a decoder/encoder for the BOLT11 invoice format used in the Lightning Network. It can be used to decode and/or encode BOLT11 invoices.

Available Packages

We've decided to have 2 packages, one for desktop/server development, and one for Blazor WebAssembly development.

The reason behind this is that for a Blazor app running fully on the browser we don't have access to native libsodium.

Sample

A sample project using this project in a Blazor WebAssembly environment can be found here.

A live version of the sample can be found at bolt11.nlightn.ing

Usage

Follow the steps below to install and decode bolt11 invoices.

Installation

Install the package from NuGet:

# For the "standard" version of the package run
dotnet add package NLightning.Bolt11

# For the Blazor WebAssembly version run
dotnet add package NLightning.Bolt11.Blazor

Decoding

// add the using directive
using NLightning.Bolt11.Models;

// decode the invoice string
var invoice = Invoice.Decode(invoice_string);

// Get the properties from the invoice
Console.WriteLine("Here's a few props from the invoice:")
Console.WriteLine(invoice.Amount.MilliSatoshi);
Console.WriteLine(invoice.Amount.Satoshi);
Console.WriteLine(invoice.PaymentHash);
Console.WriteLine("A list with all the props can be found at: https://docs.nlightn.ing/api/NLightning.Bolts.BOLT11.Invoice.html#properties");

Decoding in Blazor Apps

Blazor apps need to initialize the CryptoProvider to load the necessary js files. Add the following to your Program.cs file.

Initialize the CryptoProvider (libsodium.js)

// Add the using directive
using NLightning.Infrastructure.Crypto.Providers.JS;

// ...
// Your app code

// Initialize the Crypto Provider just before starting the server.
await BlazorCryptoProvider.InitializeBlazorCryptoProviderAsync();

await builder.Build().RunAsync();

Decode the invoice

@using NLightning.Bolt11.Models

<button @onclick="DecodeInvoice">Decode</button>
<br/>
@if (invoice != null)
{
    <p>Payment Hash: @invoice.PaymentHash</p>
    <p>Amount MilliSats: @invoice.Amount.MilliSatoshi</p>
    <p>Amount Sats: @invoice.Amount.Satoshi</p>
    <p>Amount BTC: @invoice.Amount</p>
    <p>Description: @invoice.Description</p>
}

@code{

    Invoice? invoice;
    
    void DecodeInvoice()
    {
        invoice = Invoice.Decode("lnbc1pndpjfppp5qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqssp5qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqsdqq5243a4h29w7lm6g89hktd0qzfakevjp7hktskal5p69jxa6vyqw4s95577lltw0t6l9dhp7cfld9urkxfsucsxascnxdqmanrlklsqcp5nwzmf");
    }

}