POST
https://optimism-mainnet.core.chainstack.com
/
efb0a5eccd2caa5135eb54eba6f7f300
curl --request POST \
  --url https://optimism-mainnet.core.chainstack.com/efb0a5eccd2caa5135eb54eba6f7f300 \
  --header 'Content-Type: application/json' \
  --data '{
  "jsonrpc": "2.0",
  "method": "eth_syncing",
  "id": 1
}'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": {
    "startingBlock": "<string>",
    "currentBlock": "<string>",
    "highestBlock": "<string>"
  }
}

Optimism API method eth_syncing checks if the node is currently syncing with the blockchain. It provides details about the sync progress if the node is syncing.

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​
Parameters

  • none — This method does not require any parameters.

​
Response

  • result — an object containing syncing details if the node is syncing; otherwise, false. The object includes:
    • startingBlock — the block number where the sync started.
    • currentBlock — the block number where the node is currently synced to.
    • highestBlock — the highest block number known in the chain that the node is syncing towards.

If the node is not syncing, the result will be false.

​
Use case

The eth_syncing method is useful for:

  • Monitoring tools and services that track the sync status of Optimism nodes.
  • Developers and users who want to check if a node is fully synced before making transactions or deploying contracts.

Body

application/json

Response

200 - application/json

Syncing status of the node

The response is of type object.