Approvals

Approving funds using Sugar SDK

approve

Approve token spending

Signature

function approve(params: {
  config: SugarWagmiConfig;
  tokenAddress: Address;
  spenderAddress: Address;
  amount: bigint;
  chainId: number;
  waitForReceipt?: boolean;
}): Promise<Hex>

Parameters

• config - SugarWagmiConfig instance connected to the wallet authorizing the approval.
• tokenAddress - ERC20 token contract to approve.
• spenderAddress - Address that will spend tokens.
• amount - Bigint allowance to grant.
• chainId - Chain where the approval transaction should execute.
• waitForReceipt - Optional flag to wait for confirmation (default true).

Returns

Promise<Hex> - Transaction hash of the approval call.

Example

import { approve, getQuoteForSwap } from "@dromos-labs/sdk.js";

const quote = await getQuoteForSwap({
  config, fromToken, toToken, amountIn: 1_000_000n
});

const txHash = await approve({
  config,
  tokenAddress: quote.fromToken.address,
  spenderAddress: quote.spenderAddress,
  amount: quote.amount,
  chainId: quote.fromToken.chainId,
});

console.log(`Approval confirmed: ${txHash}`);