UTxORPC.Sdk | .NET

A gRPC interface for UTxO Blockchains

The Utxorpc.Sdk provides a .NET interface for interacting with UTxO-based blockchains via gRPC. It simplifies the process of fetching blocks, following chain tips, and more, allowing developers to easily integrate blockchain data into their applications.

Features

• FetchBlockAsync: Retrieve blocks by hash and index.
• FollowTipAsync: Stream real-time updates as new blocks are applied, undone, or when the chain is reset.
• Future Expansion: Additional methods will be provided for watching transactions, submitting transactions, querying data, and more.

Installation

To install the SDK, use the following command in the NuGet Package Manager:

dotnet add package Utxorpc.Sdk --version 1.0.0-alpha

Alternatively, you can install it via the NuGet Package Manager in Visual Studio.

Usage

SyncServiceClient Example

The SyncServiceClient allows you to fetch blocks and follow chain tips with ease. Below is an example of how to use it:

using Utxorpc.Sdk;
using Utxorpc.Sdk.Models;
using Utxorpc.Sdk.Models.Enums;

var headers = new Dictionary<string, string>
{
    { "dmtr-api-key", "dmtr_utxorpc1vc0m93rynmltysttwm7ns9m3n5cklws6" },
};

var client = new SyncServiceClient(
    url: "https://preview.utxorpc-v0.demeter.run",
    headers
);

await foreach (NextResponse? response in client.FollowTipAsync(
    new BlockRef
    (
        "b977e548f3364b114505f3311a10f89e5f5cf47e815765bce6750a5de48e5951",
        58717900
    )))
{
    Console.WriteLine("___________________");
    switch (response.Action)
    {
        case NextResponseAction.Apply:
            Block? applyBlock = response.AppliedBlock;
            if (applyBlock is not null)
            {
                Console.WriteLine($"Apply Block: {applyBlock.Hash} Slot: {applyBlock.Slot}");
                Console.WriteLine($"Cbor: {Convert.ToHexString(applyBlock.NativeBytes ?? [])}");
            }
            break;
        case NextResponseAction.Undo:
            Block? undoBlock = response.UndoneBlock;
            if (undoBlock is not null)
            {
                Console.WriteLine($"Undo Block: {undoBlock.Hash} Slot: {undoBlock.Slot}");
            }
            break;
        case NextResponseAction.Reset:
            BlockRef? resetRef = response.ResetRef;
            if (resetRef is not null)
            {
                Console.WriteLine($"Reset to Block: {resetRef.Hash} Slot: {resetRef.Index}");
            }
            break;
    }
    Console.WriteLine("___________________");
}

Roadmap

• WatchServiceClient: Implementation for watching transactions.
• SubmitServiceClient: Methods for submitting and monitoring transactions.
• QueryServiceClient: Interface for querying blockchain data and parameters.

Contributing

Contributions are welcome! Please fork the repository and submit a pull request. For major changes, please open an issue first to discuss what you would like to change.