Interface for permit Interface used by DAI/CHAI for permit
permit(address,address,uint256,uint256,bool,uint8,bytes32,bytes32)
external
Approve the spender to spend some tokens via the holder signature
Name | Type | Description |
---|---|---|
Interface for permit Interface used by DAI/CHAI for permit
permit(address,address,uint256,uint256,bool,uint8,bytes32,bytes32)
external
Approve the spender to spend some tokens via the holder signature
Name | Type | Description |
---|---|---|
holder
address
The address of the token holder, the token owner
spender
address
The address of the token spender
nonce
uint256
The holder's nonce, increases at each call to permit
expiry
uint256
The timestamp at which the permit is no longer valid
allowed
bool
Boolean that sets approval amount, true for type(uint256).max and false for 0
v
uint8
Must produce valid secp256k1 signature from the holder along with `r` and `s`
r
bytes32
Must produce valid secp256k1 signature from the holder along with `v` and `s`
s
bytes32
Must produce valid secp256k1 signature from the holder along with `r` and `v`
holder
address
The address of the token holder, the token owner
spender
address
The address of the token spender
nonce
uint256
The holder's nonce, increases at each call to permit
expiry
uint256
The timestamp at which the permit is no longer valid
allowed
bool
Boolean that sets approval amount, true for type(uint256).max and false for 0
v
uint8
Must produce valid secp256k1 signature from the holder along with `r` and `s`
r
bytes32
Must produce valid secp256k1 signature from the holder along with `v` and `s`
s
bytes32
Must produce valid secp256k1 signature from the holder along with `r` and `v`