web3-rpc

Ethereum JSON-RPC client

Usage

Add this to your Cargo.toml

[dependencies]
web3-rpc = "0.1.10"

use serde_json::json;
use web3_rpc::model::Tag;
use web3_rpc::web3::Web3;

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    let rpc = Web3::new("http://127.0.0.1:8545".to_string());
    let r = rpc.web3_client_version().await?;
    println!("{:?}", r);
    let r = rpc.web3_sha3("0x68656c6c6f20776f726c64").await?;
    println!("{:?}", r);

    let r = rpc.net_version().await?;
    println!("{:?}", r);

    let r = rpc.net_listening().await?;
    println!("{:?}", r);

    let r = rpc.net_peer_count().await?;
    println!("{:?}", r);

    let r = rpc.eth_protocol_version().await?;
    println!("{:?}", r);

    let r = rpc.eth_syncing().await?;
    println!("{:?}", r);

    let r = rpc.eth_coinbase().await?;
    println!("{:?}", r);

    let r = rpc.eth_mining().await?;
    println!("{:?}", r);

    let r = rpc.eth_hashrate().await?;
    println!("{:?}", r);

    let r = rpc.eth_gas_price().await?;
    println!("{:?}", r);

    let r = rpc.eth_accounts().await?;
    println!("{:?}", r);

    let r = rpc
        .eth_get_balance(
            "0x846c4dc9f4e2514206ef179eaa0bcfae007e37d2",
            Some(Tag::Latest),
        )
        .await?;
    println!("{:?}", r);

    let r = rpc
        .eth_get_storage_at("0x295a70b2de5e3953354a6a8344e616ed314d7251", "0x0", None)
        .await?;
    println!("{:?}", r);

    let r = rpc
        .eth_get_transaction_count("0x846c4dc9f4e2514206ef179eaa0bcfae007e37d2", None)
        .await?;
    println!("{:?}", r);

    match rpc
        .eth_get_block_transaction_count_by_hash(
            "0xe812a49745d691961893d7cfd3902d78d710751bab872f12215ee23f27f3efa9",
        )
        .await
    {
        Ok(r) => {
            println!("{:?}", r);
        }
        Err(e) => {
            println!("{:?}", e);
        }
    }

    /*
    let r = rpc
        .eth_get_block_transaction_count_by_number("0xdf969d")
        .await?;
    println!("{:?}", r);

    let r = rpc
        .eth_get_uncle_count_by_block_hash(
            "0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238",
        )
        .await?;
    println!("{:?}", r);

    let r = rpc.eth_get_uncle_count_by_block_number("0xdf969d").await?;
    println!("{:?}", r);*/

    /*let r = rpc
        .eth_get_code("0xc00e94cb662c3520282e6f5717214004a7f26888", None)
        .await?;
    println!("{:?}", r);*/

    let r = rpc
        .eth_sign("0x846c4dc9f4e2514206ef179eaa0bcfae007e37d2", "0x84")
        .await?;
    println!("{:?}", r);

    let r = rpc
        .eth_send_transaction(
            "0x846c4dc9f4e2514206ef179eaa0bcfae007e37d2",
            "0x4e910ef89c176119744977d90093858089454223",
            "0x76c0",
            "0x9184e72a000",
            "0x9184e72a",
            "0x",
        )
        .await?;
    println!("{:?}", r);

    let r = rpc
        .eth_call(json!({"to": "0x846c4dc9f4e2514206ef179eaa0bcfae007e37d2", "data": "0x313ce567"}))
        .await?;
    println!("{:?}", r);

    Ok(())
}

api

web3

• web3_clientVersion
• web3_sha3

net

• net_version
• net_listening
• net_peerCount

eth

• eth_protocolVersion
• eth_syncing
• eth_coinbase
• eth_mining
• eth_hashrate
• eth_gasPrice
• eth_accounts
• eth_getBalance
• eth_getStorageAt
• eth_getTransactionCount
• eth_getBlockTransactionCountByHash
• eth_getBlockTransactionCountByNumber
• eth_getUncleCountByBlockHash
• eth_getUncleCountByBlockNumber
• eth_getCode
• eth_sign
• eth_sendTransaction
• eth_sendRawTransaction
• eth_call
• eth_estimateGas
• eth_getBlockByHash
• eth_getBlockByNumber
• eth_getTransactionByHash
• eth_getTransactionByBlockHashAndIndex
• eth_getTransactionByBlockNumberAndIndex
• eth_getTransactionReceipt
• eth_getUncleByBlockHashAndIndex
• eth_getUncleByBlockNumberAndIndex
• eth_getCompilers
• eth_compileSolidity
• eth_compileLLL
• eth_compileSerpent
• eth_newFilter
• eth_newBlockFilter
• eth_newPendingTransactionFilter
• eth_uninstallFilter
• eth_getFilterChanges
• eth_getFilterLogs
• eth_getLogs
• eth_getWork
• eth_submitWork
• eth_submitHashrate
• eth_blockNumber

db

• db_putString
• db_getString
• db_putHex
• db_getHex

shh

• shh_version
• shh_post
• shh_newIdentity
• shh_hasIdentity
• shh_newGroup
• shh_addToGroup
• shh_newFilter
• shh_uninstallFilter
• shh_getFilterChanges
• shh_getMessages

Your Self Request

async fn your_self_rest() -> anyhow::Result<JsonRpcResult<Vec<String>>> {
    // example
    // eth_accounts
    let rpc = Web3::new("http://127.0.0.1:8545".to_string());
    let payload = json!({ "jsonrpc": "2.0", "method": "eth_accounts", "params": [], "id": "310" });
    let result = rpc.client.post(payload).await?;
    let r: JsonRpcResult<Vec<String>> = serde_json::from_str(result.as_str())?;

    Ok(r)
}