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viem

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TypeScript Interface for Ethereum

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import { estimateContractGas, } from '../../actions/public/estimateContractGas.js'; import { portalAbi } from '../abis.js'; /** * Estimates gas required to prove a withdrawal that occurred on an L2. * * - Docs: https://viem.sh/op-stack/actions/estimateProveWithdrawalGas * * @param client - Client to use * @param parameters - {@link EstimateProveWithdrawalGasParameters} * @returns Estimated gas. {@link EstimateProveWithdrawalGasReturnType} * * @example * import { createPublicClient, http, parseEther } from 'viem' * import { base, mainnet } from 'viem/chains' * import { estimateProveWithdrawalGas } from 'viem/op-stack' * * const client = createPublicClient({ * chain: mainnet, * transport: http(), * }) * * const gas = await estimateProveWithdrawalGas(client, { * account: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e', * l2OutputIndex: 4529n, * outputRootProof: { ... }, * targetChain: optimism, * withdrawalProof: [ ... ], * withdrawal: { ... }, * }) */ export async function estimateProveWithdrawalGas(client, parameters) { const { account, chain = client.chain, gas, l2OutputIndex, maxFeePerGas, maxPriorityFeePerGas, nonce, outputRootProof, targetChain, withdrawalProof, withdrawal, } = parameters; const portalAddress = (() => { if (parameters.portalAddress) return parameters.portalAddress; if (chain) return targetChain.contracts.portal[chain.id].address; return Object.values(targetChain.contracts.portal)[0].address; })(); const params = { account, abi: portalAbi, address: portalAddress, functionName: 'proveWithdrawalTransaction', args: [withdrawal, l2OutputIndex, outputRootProof, withdrawalProof], gas, maxFeePerGas, maxPriorityFeePerGas, nonce, // TODO: Not sure `chain` is necessary since it's not used downstream // in `estimateContractGas` or `estimateGas` // @ts-ignore chain, }; return estimateContractGas(client, params); } //# sourceMappingURL=estimateProveWithdrawalGas.js.map