Struct Permit2AllowancePayload 

pub struct Permit2AllowancePayload {
    pub data: Eip712Message,
    pub payload_id: String,
    pub type_: Permit2AllowancePayloadType,
}

A Permit2 PermitSingle (AllowanceTransfer) typed-data payload. It grants the spender a reusable allowance through the canonical Permit2 contract, so it can back repeated charges rather than a single transfer. The payer must pass data to eth_signTypedData_v4 and return the resulting signature. A one-time ERC-20 approval of the Permit2 contract (an erc20_approval payload) is required first if the wallet has not yet approved Permit2 for this asset.

JSON schema

{
 "title": "Permit2 Allowance Payload",
 "description": "A Permit2 `PermitSingle` (AllowanceTransfer) typed-data payload. It grants the spender a reusable allowance through the canonical Permit2 contract, so it can back repeated charges rather than a single transfer. The payer must pass `data` to `eth_signTypedData_v4` and return the resulting signature. A one-time ERC-20 approval of the Permit2 contract (an `erc20_approval` payload) is required first if the wallet has not yet approved Permit2 for this asset.",
 "examples": [
   {
     "data": {
       "domain": {
         "chainId": 8453,
         "name": "Permit2",
         "verifyingContract": "0x000000000022D473030F116dDEE9F6B43aC78BA3"
       },
       "message": {
         "details": {
           "amount": "1461501637330902918203684832716283019655932542975",
           "expiration": "1798761600",
           "nonce": "0",
           "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
         },
         "sigDeadline": "1798761600",
         "spender": "0x9Fb909eA400c2b8D99Be292DADf07e63B814527c"
       },
       "primaryType": "PermitSingle",
       "types": {
         "EIP712Domain": [
           {
             "name": "name",
             "type": "string"
           },
           {
             "name": "chainId",
             "type": "uint256"
           },
           {
             "name": "verifyingContract",
             "type": "address"
           }
         ],
         "PermitDetails": [
           {
             "name": "token",
             "type": "address"
           },
           {
             "name": "amount",
             "type": "uint160"
           },
           {
             "name": "expiration",
             "type": "uint48"
           },
           {
             "name": "nonce",
             "type": "uint48"
           }
         ],
         "PermitSingle": [
           {
             "name": "details",
             "type": "PermitDetails"
           },
           {
             "name": "spender",
             "type": "address"
           },
           {
             "name": "sigDeadline",
             "type": "uint256"
           }
         ]
       }
     },
     "payloadId": "payload_cg4059d2-b068-6ih9-dha1-eee44f157336",
     "type": "permit2"
   }
 ],
 "type": "object",
 "required": [
   "data",
   "payloadId",
   "type"
 ],
 "properties": {
   "data": {
     "description": "EIP-712 typed data for a Permit2 `PermitSingle`. Pass to `eth_signTypedData_v4`.",
     "examples": [
       {
         "domain": {
           "chainId": 8453,
           "name": "Permit2",
           "verifyingContract": "0x000000000022D473030F116dDEE9F6B43aC78BA3"
         },
         "message": {
           "details": {
             "amount": "1461501637330902918203684832716283019655932542975",
             "expiration": "1798761600",
             "nonce": "0",
             "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
           },
           "sigDeadline": "1798761600",
           "spender": "0x9Fb909eA400c2b8D99Be292DADf07e63B814527c"
         },
         "primaryType": "PermitSingle",
         "types": {
           "EIP712Domain": [
             {
               "name": "name",
               "type": "string"
             },
             {
               "name": "chainId",
               "type": "uint256"
             },
             {
               "name": "verifyingContract",
               "type": "address"
             }
           ],
           "PermitDetails": [
             {
               "name": "token",
               "type": "address"
             },
             {
               "name": "amount",
               "type": "uint160"
             },
             {
               "name": "expiration",
               "type": "uint48"
             },
             {
               "name": "nonce",
               "type": "uint48"
             }
           ],
           "PermitSingle": [
             {
               "name": "details",
               "type": "PermitDetails"
             },
             {
               "name": "spender",
               "type": "address"
             },
             {
               "name": "sigDeadline",
               "type": "uint256"
             }
           ]
         }
       }
     ],
     "allOf": [
       {
         "$ref": "#/components/schemas/EIP712Message"
       }
     ]
   },
   "payloadId": {
     "description": "The unique identifier of the payload.",
     "examples": [
       "payload_cg4059d2-b068-6ih9-dha1-eee44f157336"
     ],
     "type": "string"
   },
   "type": {
     "description": "The payload type.",
     "examples": [
       "permit2"
     ],
     "type": "string",
     "enum": [
       "permit2"
     ]
   }
 }
}

Fields

data: Eip712Message

EIP-712 typed data for a Permit2 PermitSingle. Pass to eth_signTypedData_v4.

payload_id: String

The unique identifier of the payload.

type_: Permit2AllowancePayloadType

The payload type.

Implementations

impl Permit2AllowancePayload

pub fn builder() -> Permit2AllowancePayload

Trait Implementations

impl Clone for Permit2AllowancePayload

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Permit2AllowancePayload

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Permit2AllowancePayload

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&Permit2AllowancePayload> for Permit2AllowancePayload

fn from(value: &Permit2AllowancePayload) -> Self

Converts to this type from the input type.

impl From<Permit2AllowancePayload> for ApprovalPayload

fn from(value: Permit2AllowancePayload) -> Self

Converts to this type from the input type.

impl From<Permit2AllowancePayload> for RevocationPayload

fn from(value: Permit2AllowancePayload) -> Self

Converts to this type from the input type.

impl From<Permit2AllowancePayload> for Permit2AllowancePayload

fn from(value: Permit2AllowancePayload) -> Self

Converts to this type from the input type.

impl Serialize for Permit2AllowancePayload

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<Permit2AllowancePayload> for Permit2AllowancePayload

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(value: Permit2AllowancePayload) -> Result<Self, ConversionError>

Performs the conversion.