✨ Adding allowance in IERC20

avnu-labs · May 31, 2024 · 9368c09 · 9368c09
1 parent d9c44c6
commit 9368c09
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/interfaces/erc20.cairo b/src/interfaces/erc20.cairo
@@ -3,6 +3,7 @@ use starknet::{ContractAddress};
 #[starknet::interface]
 pub trait IERC20<TStorage> {
     fn approve(ref self: TStorage, spender: ContractAddress, amount: u256);
+    fn allowance(self: @TState, owner: ContractAddress, spender: ContractAddress) -> u256;
     fn transferFrom(ref self: TStorage, from: ContractAddress, to: ContractAddress, amount: u256);
     fn transfer(ref self: TStorage, to: ContractAddress, amount: u256);
     fn balanceOf(self: @TStorage, account: ContractAddress) -> u256;