WriteuseMutationencrypts input Curated

useFundConfidentialAirdrop

Encrypt the funding amount and transferFromConfidential into the clone.

Import

@tokenops/sdk/fhe-airdrop/react

Return

{ mutate, mutateAsync, isPending, error, data }

Lifecycle

Write

Description

Fund an existing (or not-yet-deployed) airdrop clone with encrypted tokens via the factory. The SDK encrypts the plaintext amount into an externalEuint64 and submits it with an input proof — callers never handle ciphertext.

Encryptor resolution. The hook-level encryptor (from FactoryHookOptions) is forwarded lazily to the SDK client. You can also pass encryptor per-mutation via args.encryptor to override it. If neither is present, the SDK throws Missing encryptor — pass encryptor… verbatim.

Prerequisites: caller must have set the factory as an operator on the token: token.setOperator(factoryAddress, deadline).

`args.gasFee` MUST match the fee active for `deployer` at airdrop creation time — custom fee if getCustomFee(deployer).enabled, otherwise defaultGasFee. The factory derives the target clone address from this value via CREATE2; a mismatch funds the wrong (predicted) address.

Signature

@tokenops/sdk/fhe-airdrop/react

function useFundConfidentialAirdrop(options?: FactoryHookOptions): UseMutationResult<Hex, Error, FundAirdropArgs>;

Parameters

Shape of the object you pass to .mutate(args) is the SDK type FundAirdropArgs. Inspect the type for the full shape (discriminated unions collapse to a tagged variant at call time).

Run it

Connect your wallet and click Fund the airdrop — this dispatches a real Sepolia transaction through the same runner the stories use.

Interactive · live Sepolia tx

Airdrop clone addressTotal fund amount

Loading editor…

Edit any input above, then press ⌘↵ to run.

Console0 lines

No output yet. Run the snippet to see logs stream in.

Example

components/useFundConfidentialAirdropExample.tsx

tsx

"use client";
import { useFundConfidentialAirdrop } from "@tokenops/sdk/fhe-airdrop/react";

export function Example() {
  const { mutate, isPending } = useFundConfidentialAirdrop();

  return (
    <button disabled={isPending} onClick={() => mutate(/* args */)}>
      {isPending ? "Sending…" : "FundConfidentialAirdrop"}
    </button>
  );
}

Auto-generated from the hook's shape (the SDK doesn't carry a TSDoc @example here yet).

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 Airdrop › 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).

patterns/invalidation.ts

import { useQueryClient } from "@tanstack/react-query";

const queryClient = useQueryClient();
const fundConfidentialAirdrop = useFundConfidentialAirdrop(/* options */);

fundConfidentialAirdrop.mutate(args, {
  onSuccess() {
    // Coarse invalidation: refresh every cached read on this product surface.
    queryClient.invalidateQueries({
      queryKey: ["tokenops-sdk", "fhe-airdrop"],
    });
  },
});