Crate vlra 

Rust client for the Velora (ParaSwap) DEX aggregator API

Velora (formerly ParaSwap) is a leading DEX aggregator that provides optimal swap routes across multiple DEXs. It offers advanced features like MEV protection, gas optimization, and multi-path routing.

Features

• Multi-chain support (Ethereum, BSC, Polygon, Arbitrum, Optimism, etc.)
• MEV protection through private transactions
• Advanced routing with multi-path swaps
• Gas optimization
• Delta pricing algorithm

Quick Start

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

#[tokio::main]
async fn main() -> Result<(), vlra::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!("You would receive: {} USDC (in minimal units)", response.price_route.dest_amount);

    Ok(())
}

Re-exports

pub use error::Error;

pub use error::Result;

pub use types::ApiErrorResponse;

pub use types::Chain;

pub use types::PriceRequest;

pub use types::PriceResponse;

pub use types::PriceRoute;

pub use types::Route;

pub use types::Side;

pub use types::Swap;

pub use types::SwapExchange;

pub use types::Token;

pub use types::TokenListResponse;

pub use types::TransactionRequest;

pub use types::TransactionResponse;

Modules

error

Error types for the Velora (ParaSwap) API client

types

Types for the Velora (ParaSwap) API

Structs

ApiConfig

Generic API configuration

BaseClient

A base HTTP client that handles common request/response patterns.

Client

Client for interacting with the Velora (ParaSwap) API

RetryConfig

Configuration for retry behavior

RetryError

Error wrapper that includes retry information

Constants

DEFAULT_BASE_URL

Default base URL for the Velora API

NATIVE_TOKEN_ADDRESS

Native token address (used for ETH and other native tokens)

Traits

RetryableError

Determines if an error should be retried

Functions

config_with_api_key

Create a config with an API key

default_config

Create a default Velora config

with_retry

Execute an async operation with retries

with_simple_retry

Simple retry wrapper for operations that return Result with any error type

Type Aliases

Config

Configuration for the Velora API client