estimating fee for a Call

[Nick2Nik]

Maybe I'm wrong - but there is no way to estimate fee for a call now. If I'm wrong - give me an example please. Sorry again, but I lerned documentation and examples.

[tomek0123456789]

Hi, in order to estimate Call fee, you need to use Account.sign_invoke_transaction on the call and the result of that pass into Client.estimate_fee method, e.g.:

async def estimate_fee():
    client = FullNodeClient(node_url="your_node_url")
    account = Account(
        address="your_account_address",
        client=client,
        key_pair=KeyPair.from_private_key("your_private_key"),
        chain=StarknetChainId.NETWORK_YOU_ARE_USING,
    )
    call = Call(
        to_addr=your_contract_address,
        selector=get_selector_from_name("your_method_name"),
        calldata=[your_calldata],
    )
    invoke = await full_node_account.sign_invoke_transaction(calls=call, max_fee=int(1e16))
    estimated_fee = await full_node_account.client.estimate_fee(tx=invoke)