Function encodeFunctionData

src/utils/abi/encodeFunctionData.ts:70–95

(
  parameters: EncodeFunctionDataParameters<abi, functionName>,
)

  | ErrorType

export function encodeFunctionData<
  const abi extends Abi | readonly unknown[],
  functionName extends ContractFunctionName<abi> | undefined = undefined,
>(
  parameters: EncodeFunctionDataParameters<abi, functionName>,
): EncodeFunctionDataReturnType {
  const { args } = parameters as EncodeFunctionDataParameters

  const { abi, functionName } = (() => {
    if (
      parameters.abi.length === 1 &&
      parameters.functionName?.startsWith('0x')
    )
      return parameters as { abi: Abi; functionName: Hex }
    return prepareEncodeFunctionData(parameters)
  })()

  const abiItem = abi[0]
  const signature = functionName

  const data =
    'inputs' in abiItem && abiItem.inputs
      ? encodeAbiParameters(abiItem.inputs, args ?? [])
      : undefined
  return concatHex([signature, data ?? '0x'])
}