useScaffoldEventHistory

Use this hook to retrieve historical event logs for your smart contract, providing past activity data, with the option to watch for new events.

const {
  data: events,
  isLoading: isLoadingEvents,
  error: errorReadingEvents,
} = useScaffoldEventHistory({
  contractName: "YourContract",
  eventName: "GreetingChange",
  fromBlock: 31231n,
  watch: true,
  filters: { greetingSetter: "0x9eB2C4866aAe575bC88d00DE5061d5063a1bb3aF" },
  blockData: true,
  transactionData: true,
  receiptData: true,
});

This example retrieves the historical event logs for the GreetingChange event of the YourContract smart contract, starting from block number 31231 and filtering events where the greetingSetter parameter is 0x9eB2C4866aAe575bC88d00DE5061d5063a1bb3aF.

Configuration

Parameter	Type	Required	Description
contractName	string	Yes	Name of the contract to read from.
eventName	string	Yes	Name of the event to read.
fromBlock	bigint	Yes	Block number from which to start reading events.
filters	object	No	Apply filters to the event based on indexed parameter names and values { [parameterName]: value }.
blockData	boolean	No	If set to true it will return the block data for each event (default: false).
transactionData	boolean	No	If set to true it will return the transaction data for each event (default: false).
receiptData	boolean	No	If set to true it will return the receipt data for each event (default: false).
watch	boolean	No	If set to true, the events will be refetched on each block mine (default: false).

Return Values

• data property of the returned object contains an array of event objects, each containing the event parameters and (optionally) the block, transaction, and receipt data.
• isLoading property indicates whether the event logs are currently being fetched.
• error property contains any error that occurred during the fetching process (if applicable).
• refetch property fetches the events again