v2.0.0-rc.1 release candidate

The API is frozen and later candidates carry fixes only, except the receipt-free and Safe create surface of /fhe-airdrop, which is @beta. Published on the next dist-tag; latest stays on 1.6.0 until 2.0.0.

WriteuseMutation Curated

useMintConfidential

Mint backed confidential test tokens (CTTT) to a recipient.

Import

@tokenops/sdk/testnet-faucet/react

Return

{ mutate, mutateAsync, isPending, error, data }

Lifecycle

Write

Description

Mint backed confidential test tokens (CTTT) to a recipient. Open and permissionless on testnet — anyone can mint any uint64 amount, fully backed by freshly minted underlying TTT.

The amount is PUBLIC (plaintext calldata + ConfidentialMint event); only the recipient's aggregated balance and later confidential transfers are private. Delegates 1:1 to TestnetFaucetClient.mintConfidential and returns its MintConfidentialResult (decoded from the ConfidentialMint event).

Mutations do NOT auto-invalidate read queries — that's a consumer decision. After a successful mint, invalidate every faucet query for fresh balances:

const queryClient = useQueryClient();
const mint = useMintConfidential();
mint.mutate({ amount: 1_000_000_000n }, {
  onSuccess: () => {
    queryClient.invalidateQueries({ queryKey: ["tokenops-sdk", "testnet-faucet"] });
  },
});

Signature

@tokenops/sdk/testnet-faucet/react

function useMintConfidential(options?: BaseHookOptions): UseMutationResult<MintConfidentialResult, Error, UseMintConfidentialArgs>;

Parameters

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

Run it

Connect your wallet and click Mint CTTT with rc.1 — this dispatches a real Sepolia transaction through the same runner the stories use.

Interactive · live Sepolia tx

RecipientWhole CTTT

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Example

@tokenops/sdk/testnet-faucet/react · @example

tsx

const mint = useMintConfidential();
mint.mutate({ amount: 1_000_000_000n }); // 1,000 CTTT (6-decimal units)
// mint.data → { hash, to, amount, underlyingMinted, handle }

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 generic-fallback errors. Product classes carry the offending value as fields — render them inline instead of a generic "transaction failed." See Testnet Faucet 2.0 › 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 mintConfidential = useMintConfidential(/* options */);

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