Returns an object with data about the sync status or false.

This method will use 10 Compute Units.

Reference: Here


subscription name - string - The type of event you want to subscribe to (i.e., newHeads, logs, pendingTransactions, newPendingTransactions). This method supports the following subscription types:

  • pendingTransactions - Returns full transactions that are sent to the network, marked as pending, and are sent from or to a certain address.\

  • newPendingTransactions - Returns the hash for all transactions that are added to the pending state and are signed with a key that is available in the node.\

  • newHeads - Fires a notification each time a new header is appended to the chain, including chain reorganizations.\

  • logs - Returns logs that are included in new imported blocks and match the given filter criteria.

data - object - (Optional) - Arguments such as an address, multiple addresses, and topics. Note, only logs that are created from these addresses or match the specified topics will return logs.

params: [


result - string - Hex encoded subscription ID. This ID will be attached to all received events and can also be used to cancel the subscription using eth_unsubscribe.

// Result

wscat -c wss:///<YOUR_API_KEY_HERE>

> '{"jsonrpc":  "2.0",  "id":  1,  "method":"eth_subscribe","params":["newHeads"]}'

Last updated