privy-rust

A Rust library for interacting with the Privy API, providing secure embedded wallet signing capabilities for Solana transactions. This library enables seamless integration with Privy's wallet infrastructure for transaction signing operations.

Installation

Add this to your Cargo.toml:

[dependencies]
privy-rust = "0.1.0"

Usage

First, set up your Privy credentials:

use privy_rust::PrivySigner;

let signer = PrivySigner::new(
    env::var("PRIVY_APP_ID").unwrap(),
    env::var("PRIVY_APP_SECRET").unwrap(),
    env::var("PRIVY_WALLET_ID").unwrap(),
    String::new(), // Reserved for future use
    env::var("PRIVY_PUBLIC_KEY").unwrap(),
)?;

General Purpose Signing

let message = b"Transaction data...";
let signature = signer.sign(message).await?;

Solana Transaction Signing

let transaction_bytes = b"Solana transaction data...";
let signature = signer.sign_solana(transaction_bytes).await?;

// Get the associated Solana public key
let pubkey = signer.solana_pubkey();

API Reference

PrivySigner

The main struct for interacting with the Privy API to sign transactions using embedded wallets.

Methods

• new(app_id: String, app_secret: String, wallet_id: String, _unused: String, public_key: String) -> Result<Self, anyhow::Error>

  • Creates a new PrivySigner instance with the provided Privy credentials.

• async sign(&self, message: &[u8]) -> Result<Vec<u8>, anyhow::Error>

  • Signs a message using Privy's RPC endpoint and returns the signature as a byte vector.

• async sign_solana(&self, message: &[u8]) -> Result<solana_sdk::signature::Signature, anyhow::Error>

  • Signs a Solana transaction and returns a Solana-compatible signature.

• solana_pubkey(&self) -> solana_sdk::pubkey::Pubkey

  • Returns the Solana public key associated with the Privy wallet.

Environment Variables

Create a .env file with your Privy credentials:

PRIVY_APP_ID=your_app_id
PRIVY_APP_SECRET=your_app_secret
PRIVY_WALLET_ID=your_wallet_id
PRIVY_PUBLIC_KEY=your_solana_public_key

License

This project is licensed under the MIT License.