@lodestar/prover v1.18.0
Lodestar Eth Consensus Lightclient Prover
This package is part of ChainSafe's Lodestar project
Typescript REST client for the Ethereum Consensus API spec
Usage
You can use the @lodestar/prover
in two ways, as a Web3 Provider and as proxy. For prover use case see below example.
import Web3 from "web3";
import {createVerifiedExecutionProvider, LCTransport} from "@lodestar/prover";
const {provider, proofProvider} = createVerifiedExecutionProvider(
new Web3.providers.HttpProvider("https://lodestar-sepoliarpc.chainsafe.io"),
{
transport: LCTransport.Rest,
urls: ["https://lodestar-sepolia.chainsafe.io"],
network: "sepolia",
wsCheckpoint: "trusted-checkpoint",
}
);
const web3 = new Web3(provider);
const address = "0xf97e180c050e5Ab072211Ad2C213Eb5AEE4DF134";
const balance = await web3.eth.getBalance(address, "latest");
console.log({balance, address});
You can also invoke the package as binary.
npm -i g @lodestar/prover
lodestar-prover start \
--network sepolia \
--execution-rpc https://lodestar-sepoliarpc.chainsafe.io \
--mode rest \
--beacon-rpc https://lodestar-sepolia.chainsafe.io \
--port 8080
Supported Web3 Methods
✅ - Completed
⌛ - Todo
➡️ - Request will be forward to EL without any intermediary manipulations. You can limit these by providing unverifiedWhitelist
option for provider or --unverifiedWhitelist
from the cli. If not set then all methods will be forwarded.
❇️ - Always forwarded to EL.
Group | Method | Status | Version |
---|---|---|---|
Block | eth_getBlockByHash | ✅ | v0 |
eth_getBlockByNumber | ✅ | v0 | |
eth_getBlockTransactionCountByHash | ⌛ | v2 | |
eth_getBlockTransactionCountByNumber | ⌛ | v2 | |
eth_getUncleCountByBlockHash | ⌛ | v2 | |
eth_getUncleCountByBlockNumber | ⌛ | v2 | |
Chain/Network | eth_chainId | ➡️ | |
eth_syncing | ⌛ | v1 | |
eth_coinbase | ⌛ | v2 | |
eth_accounts | ➡️ | ||
eth_blockNumber | ➡️ | ||
Call and Estimate | eth_call | ✅ | v0 |
eth_estimateGas | ✅ | v0 | |
eth_createAccessList | ⌛ | v2 | |
eth_gasPrice | ⌛ | v1 | |
eth_maxPriorityFeePerGas | ⌛ | v1 | |
eth_feeHistory | ⌛ | v2 | |
Filters | eth_newFilter | ⌛ | v2 |
eth_newBlockFilter | ⌛ | v2 | |
eth_newPendingTransactionFilter | ⌛ | v2 | |
eth_uninstallFilter | ⌛ | v2 | |
eth_getFilterChanges | ⌛ | v2 | |
eth_getFilterLogs | ⌛ | v2 | |
eth_getLogs | ⌛ | v1 | |
Mining | eth_mining | ➡️ | |
eth_hashrate | ➡️ | ||
eth_getWork | ➡️ | ||
eth_submitWork | ➡️ | ||
eth_submitHashrate | ➡️ | ||
Signing | eth_sign | ➡️ | |
eth_signTransaction | ➡️ | ||
State | eth_getBalance | ✅ | v0 |
eth_getStorageAt | ⌛ | v1 | |
eth_getTransactionCount | ⌛ | v2 | |
eth_getCode | ✅ | v0 | |
eth_getProof | ❇️ | v0 | |
Transactions | eth_sendTransaction | ➡️ | |
eth_sendRawTransaction | ➡️ | ||
eth_getTransactionByHash | ⌛ | v2 | |
eth_getTransactionByBlockHashAndIndex | ⌛ | v2 | |
eth_getTransactionByBlockNumberAndIndex | ⌛ | v2 | |
eth_getTransactionReceipt | ⌛ | v2 | |
Events | eth_subscribe | ❇️ | v0 |
eth_unsubscribe | ❇️ | v0 |
Non-supported features
- Currently does not support batch requests.
Warnings
- To use this prover the ethereum provider must support the
eth_getProof
method. Unfortunately, Infura does not currently support this endpoint. As an alternative, we suggest using Alchemy.
Prerequisites
What you need
You will need to go over the specification. You will also need to have a basic understanding of lightclient.
Getting started
- Follow the installation guide to install Lodestar.
- Quickly try out the whole stack by starting a local testnet.
Contributors
Read our contributors document, submit an issue or talk to us on our discord!
License
Apache-2.0 ChainSafe Systems
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