vlra 0.1.0

Overview

Velora (formerly ParaSwap) is a leading DEX aggregator that provides:

• MEV Protection - Private transactions through Flashbots
• Multi-path Routing - Split orders across multiple DEXs for best execution
• Gas Optimization - Efficient transaction routing to minimize gas costs
• Delta Algorithm - Advanced pricing algorithm for optimal rates

Features

• Price API - Get optimal swap prices and routing
• Transaction Builder - Build executable swap transactions
• Token Lists - Query supported tokens per chain
• Multi-chain - Supports Ethereum, Polygon, BSC, Arbitrum, Optimism, Base, and more

Quick Start

use vlra::{Client, Chain, PriceRequest};

#[tokio::main]
async fn main() -> Result<(), velora::Error> {
    let client = Client::new()?;

    // Get price for swapping 1 ETH to USDC
    let request = PriceRequest::sell(
        "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE", // Native ETH
        "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", // USDC
        "1000000000000000000", // 1 ETH in wei
    );

    let response = client.get_price(Chain::Ethereum, &request).await?;
    println!("Output: {} USDC (minimal units)", response.price_route.dest_amount);

    Ok(())
}

Building Transactions

use vlra::{Client, Chain, PriceRequest, TransactionRequest};

let client = Client::new()?;

// 1. Get a price quote
let price_request = PriceRequest::sell(
    "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE",
    "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
    "1000000000000000000",
);
let price = client.get_price(Chain::Ethereum, &price_request).await?;

// 2. Build the transaction
let tx_request = TransactionRequest::new(
    &price.price_route,
    "0xYourWalletAddress",
    100, // 1% slippage in basis points
);

let tx = client.build_transaction(Chain::Ethereum, &tx_request).await?;
println!("Send to: {}", tx.to);
println!("Data: {}", tx.data);
println!("Value: {}", tx.value);

Token Lists

use vlra::{Client, Chain};

let client = Client::new()?;

let tokens = client.get_tokens(Chain::Ethereum).await?;
for token in &tokens.tokens[..5] {
    println!("{}: {}", token.symbol, token.address);
}

Supported Chains

Configuration

use vlra::{Client, Config};
use std::time::Duration;

// With API key (recommended for production)
let client = Client::with_api_key("your-api-key")?;

// With custom configuration
let config = Config::new()
    .api_key("your-api-key")
    .timeout(Duration::from_secs(30));
let client = Client::with_config(config)?;

API Reference

• ParaSwap Docs
• API Reference

License

MIT