main.rs

use ethers_core::types::Chain;
use ethers_contract::MULTICALL_SUPPORTED_CHAIN_IDS;

#[tokio::main]
async fn main() {
    let response: serde_json::Value =
        reqwest::get("https://raw.githubusercontent.com/mds1/multicall/main/deployments.json")
            .await
            .unwrap()
            .json()
            .await
            .unwrap();
    for chain in response.as_array().unwrap() {
        // Skip chains with custom contract addresses
        if chain.as_object().unwrap().contains_key("address") {
            continue;
        }
        let chain_id = chain["chainId"].as_u64().unwrap();
        let ethers_chain: Option<Chain> = chain_id.try_into().ok();
        if !MULTICALL_SUPPORTED_CHAIN_IDS.contains(&chain_id) && ethers_chain.is_none() {
            println!("{}: {:?} {:?}", chain_id, chain, ethers_chain);
        }
    }
}