The Lucid Evolution UTxO RPC Provider offers a JavaScript/TypeScript interface for interacting with UTxO-based blockchains using Lucid Evolution. By leveraging gRPC and UTxO RPC, it allows developers to seamlessly integrate Cardano blockchain interactions into their decentralized applications (dApps).

🌟 Features

• 🔗 Seamless Integration with Lucid: Works with the Lucid Evolution framework, providing a high-level API to build and sign Cardano transactions.
• ⚡️ Efficient gRPC Communication: Uses gRPC for fast and efficient communication with UTxO blockchains.
• 🛠 Flexible Provider Options: Can be used with a local node, hosted services, or any UTxO RPC-compliant provider.
• 🔒 Secure Wallet Integration: Easily integrate wallets and securely sign transactions.
• 🏗 Transaction Building: Create and sign complex transactions with the Lucid framework.

📦 Installation

To install the Lucid UTxO RPC Provider, use npm:

npm i @utxorpc/lucid-evolution-provider

You'll also need to install Lucid Evolution if you haven't already:

npm i @lucid-evolution/lucid

💡 Basic Usage

Here’s a simple example demonstrating how to use the Lucid UTxO RPC Provider with the Lucid SDK to interact with a Cardano blockchain:

import { U5C } from "@utxorpc/lucid-evolution-provider";
import { Lucid } from "@lucid-evolution/lucid";

async function main() {
    // Step #1: Set up the U5C provider with your server URL and API key
    const provider = new U5C({
        url: "http://localhost:50051", // Use your local or hosted UTxO RPC service
    });

    // Step #2: Initialize Lucid with the U5C provider and network (for now we'll use Preview network)
    const lucid = await Lucid(provider, "Preview");

    // Step #3: Select a wallet using a seed phrase (here's a sample working wallet)
    lucid.selectWallet.fromSeed("end link visit estate sock hurt crucial forum eagle earn idle laptop wheat rookie when hard suffer duty kingdom clerk glide mechanic debris jar");

    // Step #4: Get UTxOs from the wallet (Optional)
    const utxos = await lucid.wallet().getUtxos();
    console.log("UTxOs: ", utxos);

    // Step #5: Build and sign a transaction
    const tx = await lucid
        .newTx()
        .pay.ToAddress(await lucid.wallet().address(), { lovelace: 5000000n })
        .complete();

    const signedTx = await tx.sign.withWallet().complete();

    // Step #6: Submit the transaction to the blockchain
    const txHash = await signedTx.submit();
    console.log("Transaction Submitted: ", txHash);
}

main().catch(console.error);

📜 License

This project is licensed under the MIT License. See the LICENSE file for details.

👥 Join the Conversation

If you want to discuss UTxO RPC or get involved in the community, join the TxPipe Discord! There's a dedicated channel for UTxO RPC where you can connect with other developers, share ideas, and get support. You an also learn more about the Lucid Evolution communitiy with the link below!

👉 Join the TxPipe Discord here! 💬

👉 Join the Lucid Discord 💬