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waitForNextL2Output

Waits for the next L2 output (after the provided block number) to be submitted. Used within the waitToProve Action.

Internally calls getTimeToNextL2Output and waits the returned seconds.

Usage

import { account, publicClientL1, publicClientL2 } from './config'
 
const l2BlockNumber = await publicClientL2.getBlockNumber()
const output = await publicClientL1.waitForNextL2Output({ 
  l2BlockNumber, 
  targetChain: publicClientL2.chain, 
})

Returns

WaitForNextL2OutputReturnType

The L2 output proposal.

Parameters

l2BlockNumber

  • Type: bigint

The L2 block number.

const output = await publicClientL1.waitForNextL2Output({ 
  l2BlockNumber: 69420n, 
  targetChain: optimism, 
})

targetChain

The L2 chain.

const output = await publicClientL1.waitForNextL2Output({
  l2BlockNumber,
  targetChain: optimism, 
})

intervalBuffer (optional)

  • Type: number
  • Default: 1.1

The buffer to account for discrepencies between non-deterministic time intervals.

const output = await publicClientL1.waitForNextL2Output({
  intervalBuffer: 1.2, 
  l2BlockNumber,
  targetChain: optimism, 
})

l2OutputOracleAddress (optional)

  • Type: Address
  • Default: targetChain.contracts.l2OutputOracle[chainId].address

The address of the L2 Output Oracle contract. Defaults to the L2 Output Oracle contract specified on the targetChain.

If a l2OutputOracleAddress is provided, the targetChain parameter becomes optional.

const output = await publicClientL1.waitForNextL2Output({
  l2BlockNumber,
  l2OutputOracleAddress: '0xbEb5Fc579115071764c7423A4f12eDde41f106Ed'
})