🏗️ Depend

cargo add evm-sdk

📦 Example

Basic usage

use evm_client::{Evm, EvmType};
use ethers::types::Address;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let evm = Evm::new(EvmType::Ethereum).await?;
    let address: Address = "0x742d35Cc6634C0532925a3b8D6B6f7C93D5A7A7A".parse()?;
    let balance = evm.get_balance(address).await?;
    println!("Balance: {}", balance);
    let analyzer = evm_client::contract::ContractAnalyzer::new(Arc::new(evm));
    let contract_info = analyzer.get_contract_info(address).await?;
    println!("Contract bytecode length: {}", contract_info.bytecode.len());
    Ok(())
}

Get the actual number and amount of tokens decreased and increased in a specified transaction.

#[cfg(test)]
mod test {
    use crate::{Evm, trade::Trade};
    use std::sync::Arc;
    #[tokio::test]
    async fn test_get_transaction_by_tx() {
        let evm = Evm::new(evm_client::EvmType::ETHEREUM_MAINNET)
            .await
            .unwrap();
        let trade = Trade::new(Arc::new(evm));
        let t = trade
            .get_transactions_by_tx(
                "0x2c632c004c7a2c5daedf54f53a7ab424756b383bfc477bfc802e3a1d5a930a2e",
            )
            .await
            .unwrap();
        // reality received
        let received = t.get_received_token_eth();
        // reality spent
        let spent = t.get_spent_token_eth();
        println!("Actual Received {:?}", received);
        println!("Actual Spent {:?}", spent);
    }
}

Monitoring large transactions

use evm_client::{Evm, EvmType, TradeEventListener};
use std::sync::Arc;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let evm = Arc::new(Evm::new(EvmType::Ethereum).await?);
    let event_listener = TradeEventListener::new(evm.clone());

    let min_value = ethers::types::U256::from(10u64.pow(18));
    let mut receiver = event_listener.watch_large_transactions(min_value, 3).await?;

    while let Some(tx_with_receipt) = receiver.recv().await {
        println!("Large transaction detected: {:?}", tx_with_receipt.transaction.hash);
        println!("Value: {}", tx_with_receipt.transaction.value);
        println!("From: {:?}", tx_with_receipt.transaction.from);
        if let Some(to) = tx_with_receipt.transaction.to {
            println!("To: {:?}", to);
        }
    }

    Ok(())
}