Alloy log subscriber.

Cargo.toml

[package]
name = "playground"
version = "0.1.0"
edition = "2021"

[dependencies]
alloy = { git = "https://github.com/alloy-rs/alloy.git", features = ["contract", "provider-ws", "rpc-types-eth"] }
anyhow = "1.0.82"
tokio = { version = "1.37.0", features = ["full"] }
tracing = "0.1.40"
tracing-subscriber = "0.3.18"
tokio-stream = "0.1.15"

main.rs

use alloy::primitives::Address;
use alloy::providers::{Provider, ProviderBuilder};
use alloy::rpc::types::eth::Filter;
use alloy::sol;
use alloy::sol_types::SolEvent;
use alloy::transports::ws::WsConnect;
use tokio_stream::StreamExt;
use tracing::info;

sol!(
    #[sol(rpc)]
    IERC20,
    "src/abi/IERC20.json"
);

#[tokio::test]
async fn test() -> anyhow::Result<()> {
    tracing_subscriber::fmt().init();

    let provider = ProviderBuilder::new()
        .on_ws(WsConnect::new("wss://mainnet.gateway.tenderly.co"))
        .await?;

    let filter = Filter::new()
        .address("0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48".parse::<Address>()?) // USDC contract address
        .event("Transfer(address,address,uint256)");

    let log_subscription = provider.subscribe_logs(&filter).await?;
    let mut log_subscription_stream = log_subscription.into_stream();

    while let Some(log) = log_subscription_stream.next().await {
        let transfer_log = IERC20::Transfer::decode_log(log.as_ref(), true)?;

        info!(from = ?transfer_log.from, to = ?transfer_log.to, value = ?transfer_log.value, "USDC Transfer");
    }

    Ok(())
}

output.txt

2024-05-07T04:27:49.393686Z  INFO playground: USDC Transfer from=0x0d0707963952f2fba59dd06f2b425ace40b492fe to=0x401763d99bf21f0344325eaadf5a86947ac031b0 value=0x0000000000000000000000000000000000000000000000000000000012075370_U256
2024-05-07T04:27:49.393885Z  INFO playground: USDC Transfer from=0xf89d7b9c864f589bbf53a82105107622b35eaa40 to=0x3a6fc80335001bf9472ef6ec963476feb3cdfa3c value=0x0000000000000000000000000000000000000000000000000000000011f0e540_U256
2024-05-07T04:27:49.393951Z  INFO playground: USDC Transfer from=0x5041ed759dd4afc3a72b8192c143f72f4724081a to=0xddd6670fc2d6a3834918eeae979fcd4f2c32a471 value=0x0000000000000000000000000000000000000000000000000000000011e1a300_U256
2024-05-07T04:27:49.394015Z  INFO playground: USDC Transfer from=0x7b27cd3a6592965790c503784edc8dbf08a09d75 to=0xae2d4617c862309a3d75a0ffb358c7a5009c673f value=0x00000000000000000000000000000000000000000000000000000000e9344a93_U256
2024-05-07T04:27:49.394074Z  INFO playground: USDC Transfer from=0x66f84462d88ee30a6ca13df25a5c626929c10bf7 to=0xae2d4617c862309a3d75a0ffb358c7a5009c673f value=0x00000000000000000000000000000000000000000000000000000007707cd400_U256
2024-05-07T04:28:04.142585Z  INFO playground: USDC Transfer from=0x0d0707963952f2fba59dd06f2b425ace40b492fe to=0x26dd4e608630762807ec83d202797090deb7f1e9 value=0x0000000000000000000000000000000000000000000000000000000012075370_U256
2024-05-07T04:28:04.142712Z  INFO playground: USDC Transfer from=0x4ed28d619f4aef6fec1a4da939bef04f65fc8d02 to=0xde1ba6469d4b729eaa140d2997b5786262501a9a value=0x00000000000000000000000000000000000000000000000000000000129e3578_U256
2024-05-07T04:28:04.142786Z  INFO playground: USDC Transfer from=0xa9d1e08c7793af67e9d92fe308d5697fb81d3e43 to=0x1eaf28189162778dd1f7312b2fa94ba8748caf7f value=0x00000000000000000000000000000000000000000000000000000001bf08eb00_U256
2024-05-07T04:28:04.142857Z  INFO playground: USDC Transfer from=0xa9d1e08c7793af67e9d92fe308d5697fb81d3e43 to=0x5f0a7764fb2f43f9341113d0d24e8b9bc7dfa028 value=0x00000000000000000000000000000000000000000000000000000000000f4240_U256
2024-05-07T04:28:04.142921Z  INFO playground: USDC Transfer from=0xa9d1e08c7793af67e9d92fe308d5697fb81d3e43 to=0x51c72848c68a965f66fa7a88855f9f7784502a7f value=0x000000000000000000000000000000000000000000000000000002895df34880_U256
2024-05-07T04:28:04.142986Z  INFO playground: USDC Transfer from=0xa9d1e08c7793af67e9d92fe308d5697fb81d3e43 to=0x498ae97f1c4faa0463e18c00bd08922af43e40ee value=0x0000000000000000000000000000000000000000000000000000000007938c7a_U256
2024-05-07T04:28:04.143050Z  INFO playground: USDC Transfer from=0x787b8840100d9baadd7463f4a73b5ba73b00c6ca to=0x05820214e01401c28bc6700795aed068ea098566 value=0x0000000000000000000000000000000000000000000000000000000002fdea25_U256
2024-05-07T04:28:04.143115Z  INFO playground: USDC Transfer from=0x222222fd79264bbe280b4986f6fefbc3524d0137 to=0xe37e799d5077682fa0a244d46e5649f71457bd09 value=0x00000000000000000000000000000000000000000000000000000022ecb25c00_U256
2024-05-07T04:28:04.143221Z  INFO playground: USDC Transfer from=0xe37e799d5077682fa0a244d46e5649f71457bd09 to=0x111111125421ca6dc452d289314280a0f8842a65 value=0x00000000000000000000000000000000000000000000000000000022ecb25c00_U256
2024-05-07T04:28:04.143334Z  INFO playground: USDC Transfer from=0x111111125421ca6dc452d289314280a0f8842a65 to=0x733c33339684f38c8aada0434751611e168255c4 value=0x00000000000000000000000000000000000000000000000000000022ecb25c00_U256
2024-05-07T04:28:04.143425Z  INFO playground: USDC Transfer from=0xb4e16d0168e52d35cacd2c6185b44281ec28c9dc to=0x663dc15d3c1ac63ff12e45ab68fea3f0a883c251 value=0x0000000000000000000000000000000000000000000000000000000001da4266_U256
2024-05-07T04:28:04.143490Z  INFO playground: USDC Transfer from=0x663dc15d3c1ac63ff12e45ab68fea3f0a883c251 to=0x41c691aedc119197f5d0540dcb6da768240e18cf value=0x000000000000000000000000000000000000000000000000000000000003152a_U256
2024-05-07T04:28:04.143564Z  INFO playground: USDC Transfer from=0x663dc15d3c1ac63ff12e45ab68fea3f0a883c251 to=0xef4fb24ad0916217251f553c0596f8edc630eb66 value=0x0000000000000000000000000000000000000000000000000000000001d72d3c_U256
2024-05-07T04:28:04.143637Z  INFO playground: USDC Transfer from=0xff8ba4d1fc3762f6154cc942ccf30049a2a0cec6 to=0x22f9dcf4647084d6c31b2765f6910cd85c178c18 value=0x0000000000000000000000000000000000000000000000000000000000702206_U256
2024-05-07T04:28:04.143744Z  INFO playground: USDC Transfer from=0x22f9dcf4647084d6c31b2765f6910cd85c178c18 to=0x7afa9d836d2fccf172b66622625e56404e465dbd value=0x000000000000000000000000000000000000000000000000000000000000f344_U256
2024-05-07T04:28:04.143811Z  INFO playground: USDC Transfer from=0x22f9dcf4647084d6c31b2765f6910cd85c178c18 to=0x602c054249baa5307805a8c491b459d64996056b value=0x00000000000000000000000000000000000000000000000000000000006f2ec2_U256