useWithdrawGasFee
Fee-collector: withdraw amount wei of accumulated ETH gas fees from the singleton to to.
@tokenops/sdk/fhe-disperse/react{ mutate, mutateAsync, isPending, error, data }Description
Fee-collector: withdraw amount wei of accumulated ETH gas fees from the
singleton to to. There is no "drain" sentinel — amount: 0n is a no-op
that emits a zero-value GasFeeWithdrawn event. Requires
FEE_COLLECTOR_ROLE.
Signature
function useWithdrawGasFee(options?: DisperseHookOptions): UseMutationResult<Hex, Error, UseWithdrawGasFeeArgs>;Parameters
Shape of the object you pass to .mutate(args).
| Property | Type | Description |
|---|---|---|
| torequired | Address | Recipient of the withdrawn ETH. |
| amountrequired | bigint | Amount in wei to withdraw. The contract does not interpret 0n as "drain" — passing 0n succeeds with no ETH movement. Read the singleton balance with publicClient.getBalance(singleton) to drain. |
| account | Account | Address | Override signer account. Falls back to walletClient.account. |
Example
const withdraw = useWithdrawGasFee();
withdraw.mutate({ to: collectorAddress, amount: 0n });Pulled directly from the hook's TSDoc block — the same snippet your IDE shows on hover.
Errors
This mutation can reject with SDK-level, product-level, or viem-passthrough errors. Product classes carry the offending value as fields — render them inline instead of a generic "transaction failed." See Disperse › Errors for the per-class recovery table.
Invalidation recipe
After this mutation succeeds, invalidate the queries it affects so consumer UI re-fetches fresh state. The SDK never auto-invalidates — that's a consumer decision (different apps cache different shapes).
import { useQueryClient } from "@tanstack/react-query";
const queryClient = useQueryClient();
const withdrawGasFee = useWithdrawGasFee(/* options */);
withdrawGasFee.mutate(args, {
onSuccess() {
// Coarse invalidation: refresh every cached read on this product surface.
queryClient.invalidateQueries({
queryKey: ["tokenops-sdk", "fhe-disperse"],
});
},
});See also
Other Recovery · pause / withdraw hooks in disperse:
useIsPausedRead the singleton's paused flag.useRecoverFromWalletsRecover residual confidential ERC-7984 tokens from the caller's registered wallets to to.useRecoverERC20FromWalletsRecover ERC-20 tokens accidentally sent to the caller's registered wallets.usePauseAdmin: pause all disperse operations on the singleton.