eth_subscribe

Subscribe to different Ethereum event types like newHeads, logs, pendingTransactions, and minedTransactions using WebSockets.

Parameters:

• Event types- specifies the type of event to listen to (ex: new pending transactions, logs, etc.)

• Optional params - optional parameters to include to describe the type of event to listen to (ex: address)

Returns:

While the subscription is active, you will receive events formatted as an object described below:

• Event Object:

  • jsonrpc: Always "2.0"

  • method: Always "eth_subscription"

  • params: An object with the following fields:

    • subscription: The subscription ID returned by the eth_subscribe call which created this subscription. This ID will be attached to all received events and can also be used to cancel the subscription using eth_unsubscribe

    • result: An object whose contents vary depending on the event type.

Example:

// initiate websocket stream 
wscat -c wss://flow-evm.blockpi.network/v1/ws/<your-api-key>

//create an event
{"jsonrpc":"2.0","id": 2, "method": "eth_subscribe", "params": ["newHeads"]}

// Result
{ }