Function encodeApproveCalldata

encodeApproveCalldata(spender: string, amount: string): string
Encodes ERC-20 approve(address spender, uint256 amount) calldata.
Parameters
- spender: string
  The spender address to approve
- amount: string
  The approval amount in base units
Returns string
Hex-encoded calldata with 0x prefix
Example
```
const calldata = encodeApproveCalldata("0xFacilitator...", "1000000");
// Returns "0x095ea7b3" + abi-encoded args
```
- Defined in extensions/src/erc20-approval-gas-sponsoring/client.ts:42