> For the complete documentation index, see [llms.txt](https://docs-core.allbridge.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-core.allbridge.io/sdk/guides/evm/allowance-and-approve.md).

# Allowance and approve

```typescript
if (
  // check if tokens already approved
  await sdk.bridge.checkAllowance({
    token: sourceTokenInfo,
    owner: fromAddress,
    gasFeePaymentMethod: gasFeePaymentMethod,
    amount: totalAmountFloat,
  })
) {
  console.log("The granted allowance is enough for the transaction");
} else {
  console.log("The granted allowance is NOT enough for the transaction");
}
```

To make approve transaction

```typescript
  // authorize the bridge to transfer tokens from the sender's address
  const rawTransactionApprove = await sdk.bridge.rawTxBuilder.approve({
    token: sourceTokenInfo,
    owner: fromAddress,
  });
  const approveTxReceipt = await sendRawTransaction(rawTransactionApprove as  as RawEvmTransaction);
  console.log("approve tx id:", approveTxReceipt.transactionHash);
```

[Full example](https://github.com/allbridge-io/allbridge-core-js-sdk/blob/main/examples/src/examples/bridge/evm/evm-build-send-tx.ts)