rouzwelt

[package]
name = "otel-tracing-example"
version = "0.1.0"
edition = "2024"

[dependencies]
tokio = { version = "1.46.0", features = ["full"] }
reqwest = { version = "0.12.4", features = ["json", "rustls-tls", "gzip", "blocking"] }
tracing = "0.1.41"
tracing-subscriber = "0.3.19"

rouzwelt

const { ethers } = require("ethers");

const encodeMeta = (data) => {
    return (
        "0x" +
        BigInt(0xff0a89c674ee7874n).toString(16).toLowerCase() +
        ethers.utils.hexlify(ethers.utils.toUtf8Bytes(data)).split("x")[1]
    );
};

rouzwelt

• you need foundry installed on your machine for this process, as well as having forge-std lib for contract dependencies.
• download or copy the DiagOrder.sol file below and put it in ./script folder (or any other folder of your choice)
• replace the import path with the location of forge-std/src/Script.sol on you disk.
• replace the to address with the arb contract address on the desired network.
• replace the data with the calldata without leading 0x taken from otel (hyperdx).
• save the file and now you can run the following command to get the traces:

forge script path/to/DiagOrder.sol:DiagOrder -vvvvv --fork-url <url> --fork-block-number <blocknumber> --sender <addres>

• replace the path with the location of the saved file in previous step,