eth_syncing - HyperEVM

Example code for the eth_syncing JSON RPC method. Сomplete guide on how to use eth_syncing GetBlock JSON RPC in GetBlock Web3 documentation.

This method returns an object with data about the sync status or false if not syncing.

Parameters

• None

Request

cURL

cURL

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_syncing",
    "params": [],
    "id": "getblock.io"
}'

Axios

Request

Rust

Response

Example response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": false
}

Response Parameters

Field	Type	Description
result	boolean / object	false if not syncing, or sync status object.

Sync Status Object (if syncing)

Field	Type	Description
startingBlock	string	Block at which sync started (hex).
currentBlock	string	Current block being synced (hex).
highestBlock	string	Estimated highest block (hex).

Use Case

The eth_syncing method is essential for:

• Node health monitoring

• Sync status verification

• Application readiness checks

• Infrastructure monitoring

Error Handling

Error Code	Message	Cause
-32603	Internal error	Node issue.

Web3 Integration

Ether.js

import { ethers } from "ethers";
const RPC_URL = "https://go.getblock.io/<ACCESS_TOKEN>";
const provider = new ethers.JsonRpcProvider(RPC_URL);

async function Call() {
  try {
    // Call the method — this will resolve to a number (promise resolves to number
    const result = await provider.send("eth_syncing", []);
    console.log("The result:", result);
    return result;
  } catch (error) {
    console.error("The error:", error);
    throw error;
  }
}

Viem