> For the complete documentation index, see [llms.txt](https://docs.algebra.finance/algebra-integral-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.algebra.finance/algebra-integral-documentation/algebra-v1-technical-reference/contracts/api-reference-v1.0/v1.0-periphery/iselfpermit.md). # ISelfPermit ## ISelfPermit Self Permit Functionality to call permit on any EIP-2612-compliant token for use in the route ### Functions #### selfPermit `selfPermit(address,uint256,uint256,uint8,bytes32,bytes32)` payable external Permits this contract to spend a given token from \`msg.sender\` | Name | Type | Description | | -------- | ------- | --------------------------------------------------------------------------------- | | token | address | The address of the token spent | | value | uint256 | The amount that can be spent of token | | deadline | uint256 | A timestamp, the current blocktime must be less than or equal to this timestamp | | 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\` | #### selfPermitIfNecessary `selfPermitIfNecessary(address,uint256,uint256,uint8,bytes32,bytes32)` payable external Permits this contract to spend a given token from \`msg.sender\` | Name | Type | Description | | -------- | ------- | --------------------------------------------------------------------------------- | | token | address | The address of the token spent | | value | uint256 | The amount that can be spent of token | | deadline | uint256 | A timestamp, the current blocktime must be less than or equal to this timestamp | | 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\` | #### selfPermitAllowed `selfPermitAllowed(address,uint256,uint256,uint8,bytes32,bytes32)` payable external Permits this contract to spend the sender's tokens for permit signatures that have the \`allowed\` parameter | Name | Type | Description | | ------ | ------- | --------------------------------------------------------------------------------- | | token | address | The address of the token spent | | nonce | uint256 | The current nonce of the owner | | expiry | uint256 | The timestamp at which the permit is no longer valid | | 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\` | #### selfPermitAllowedIfNecessary `selfPermitAllowedIfNecessary(address,uint256,uint256,uint8,bytes32,bytes32)` payable external Permits this contract to spend the sender's tokens for permit signatures that have the \`allowed\` parameter | Name | Type | Description | | ------ | ------- | --------------------------------------------------------------------------------- | | token | address | The address of the token spent | | nonce | uint256 | The current nonce of the owner | | expiry | uint256 | The timestamp at which the permit is no longer valid | | 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\` | *** ## ISelfPermit Self Permit Functionality to call permit on any EIP-2612-compliant token for use in the route ### Functions #### selfPermit `selfPermit(address,uint256,uint256,uint8,bytes32,bytes32)` payable external Permits this contract to spend a given token from \`msg.sender\` | Name | Type | Description | | -------- | ------- | --------------------------------------------------------------------------------- | | token | address | The address of the token spent | | value | uint256 | The amount that can be spent of token | | deadline | uint256 | A timestamp, the current blocktime must be less than or equal to this timestamp | | 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\` | #### selfPermitIfNecessary `selfPermitIfNecessary(address,uint256,uint256,uint8,bytes32,bytes32)` payable external Permits this contract to spend a given token from \`msg.sender\` | Name | Type | Description | | -------- | ------- | --------------------------------------------------------------------------------- | | token | address | The address of the token spent | | value | uint256 | The amount that can be spent of token | | deadline | uint256 | A timestamp, the current blocktime must be less than or equal to this timestamp | | 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\` | #### selfPermitAllowed `selfPermitAllowed(address,uint256,uint256,uint8,bytes32,bytes32)` payable external Permits this contract to spend the sender's tokens for permit signatures that have the \`allowed\` parameter | Name | Type | Description | | ------ | ------- | --------------------------------------------------------------------------------- | | token | address | The address of the token spent | | nonce | uint256 | The current nonce of the owner | | expiry | uint256 | The timestamp at which the permit is no longer valid | | 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\` | #### selfPermitAllowedIfNecessary `selfPermitAllowedIfNecessary(address,uint256,uint256,uint8,bytes32,bytes32)` payable external Permits this contract to spend the sender's tokens for permit signatures that have the \`allowed\` parameter | Name | Type | Description | | ------ | ------- | --------------------------------------------------------------------------------- | | token | address | The address of the token spent | | nonce | uint256 | The current nonce of the owner | | expiry | uint256 | The timestamp at which the permit is no longer valid | | 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\` | ***