renegade_sdk/renegade_wallet_client/actions/
approvals.rs

1//! Helper methods for building ERC20 and Permit2 approval transactions
2
3use alloy::{
4    primitives::{Address, U160, U256, aliases::U48},
5    sol_types::SolCall,
6};
7use alloy_rpc_types_eth::{TransactionInput, TransactionRequest};
8
9use crate::{
10    client::RenegadeClient,
11    renegade_wallet_client::utils::{IAllowanceTransfer, approveCall},
12};
13
14impl RenegadeClient {
15    /// Build a transaction to approve the Permit2 contract as a spender for
16    /// the given ERC20 token.
17    ///
18    /// # Arguments
19    /// * `token` - The ERC20 token address to approve
20    /// * `amount` - The amount to approve for spending
21    ///
22    /// # Returns
23    /// A `TransactionRequest` that can be executed by the user with their
24    /// provider
25    pub fn build_erc20_approval_tx(&self, token: Address, amount: U256) -> TransactionRequest {
26        let calldata = approveCall { spender: self.get_permit2_address(), amount }.abi_encode();
27        TransactionRequest::default().to(token).input(TransactionInput::new(calldata.into()))
28    }
29
30    /// Build a transaction to approve the darkpool as a spender through
31    /// Permit2's AllowanceTransfer interface.
32    ///
33    /// # Arguments
34    /// * `token` - The ERC20 token address to approve
35    /// * `amount` - The amount to approve for spending (uint160)
36    /// * `expiration` - The Unix timestamp when this approval expires (uint48)
37    ///
38    /// # Returns
39    /// A `TransactionRequest` that can be executed by the user with their
40    /// provider
41    pub fn build_permit2_allowance_tx(
42        &self,
43        token: Address,
44        amount: U160,
45        expiration: U48,
46    ) -> TransactionRequest {
47        let calldata = IAllowanceTransfer::approveCall {
48            token,
49            spender: self.get_darkpool_address(),
50            amount,
51            expiration,
52        }
53        .abi_encode();
54        TransactionRequest::default()
55            .to(self.get_permit2_address())
56            .input(TransactionInput::new(calldata.into()))
57    }
58}
renegade_sdk/renegade_wallet_client/actions/approvals.rs

renegade_sdk/renegade_wallet_client/actions/
approvals.rs
