Struct X402ExactEvmPermit2Payload 

pub struct X402ExactEvmPermit2Payload {
    pub permit2_authorization: X402ExactEvmPermit2PayloadPermit2Authorization,
    pub signature: X402ExactEvmPermit2PayloadSignature,
}

The x402 protocol exact scheme payload for EVM networks using Permit2. Permit2 is a universal token approval mechanism that works with any ERC-20 token, unlike ERC-3009 which requires token-level support.

JSON schema

{
 "title": "x402ExactEvmPermit2Payload",
 "description": "The x402 protocol exact scheme payload for EVM networks using Permit2. Permit2 is a universal token approval mechanism that works with any ERC-20 token, unlike ERC-3009 which requires token-level support.",
 "examples": [
   {
     "permit2Authorization": {
       "deadline": "1716150000",
       "from": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
       "nonce": "12345678901234567890",
       "permitted": {
         "amount": "1000000",
         "token": "0x036CbD53842c5426634e7929541eC2318f3dCF7e"
       },
       "spender": "0x4020615294c913F045dc10f0a5cdEbd86c280001",
       "witness": {
         "extra": "0x",
         "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
         "validAfter": "1716150000"
       }
     },
     "signature": "0xf3746613c2d920b5fdabc0856f2aeb2d4f88ee6037b8cc5d04a71a4462f134801234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1b"
   }
 ],
 "type": "object",
 "required": [
   "permit2Authorization",
   "signature"
 ],
 "properties": {
   "permit2Authorization": {
     "description": "The authorization data for the Permit2 PermitWitnessTransferFrom message.",
     "examples": [
       {
         "deadline": "1716150000",
         "from": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
         "nonce": "12345678901234567890",
         "permitted": {
           "amount": "1000000",
           "token": "0x036CbD53842c5426634e7929541eC2318f3dCF7e"
         },
         "spender": "0x4020615294c913F045dc10f0a5cdEbd86c280001",
         "witness": {
           "extra": "0x",
           "to": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
           "validAfter": "1716150000"
         }
       }
     ],
     "type": "object",
     "required": [
       "deadline",
       "from",
       "nonce",
       "permitted",
       "spender",
       "witness"
     ],
     "properties": {
       "deadline": {
         "description": "The unix timestamp before which the permit is valid.",
         "examples": [
           "1716150000"
         ],
         "type": "string"
       },
       "from": {
         "description": "The 0x-prefixed, checksum EVM address of the sender of the payment.",
         "examples": [
           "0x742d35Cc6634C0532925a3b844Bc454e4438f44e"
         ],
         "type": "string",
         "pattern": "^0x[0-9a-fA-F]{40}$"
       },
       "nonce": {
         "description": "The Permit2 nonce as a decimal string (uint256).",
         "examples": [
           "12345678901234567890"
         ],
         "type": "string",
         "pattern": "^[0-9]+$"
       },
       "permitted": {
         "description": "The token permissions for the transfer.",
         "type": "object",
         "required": [
           "amount",
           "token"
         ],
         "properties": {
           "amount": {
             "description": "The amount to transfer in atomic units.",
             "examples": [
               "1000000"
             ],
             "type": "string"
           },
           "token": {
             "description": "The 0x-prefixed, checksum EVM address of the token to transfer.",
             "examples": [
               "0x036CbD53842c5426634e7929541eC2318f3dCF7e"
             ],
             "type": "string",
             "pattern": "^0x[0-9a-fA-F]{40}$"
           }
         }
       },
       "spender": {
         "description": "The 0x-prefixed, checksum EVM address of the spender (x402 Permit2 proxy contract).",
         "examples": [
           "0x4020615294c913F045dc10f0a5cdEbd86c280001"
         ],
         "type": "string",
         "pattern": "^0x[0-9a-fA-F]{40}$"
       },
       "witness": {
         "description": "The witness data containing payment details.",
         "type": "object",
         "required": [
           "to",
           "validAfter"
         ],
         "properties": {
           "extra": {
             "description": "Optional hex-encoded extra data.",
             "examples": [
               "0x"
             ],
             "type": "string",
             "pattern": "^0x[0-9a-fA-F]*$"
           },
           "to": {
             "description": "The 0x-prefixed, checksum EVM address of the recipient.",
             "examples": [
               "0x742d35Cc6634C0532925a3b844Bc454e4438f44e"
             ],
             "type": "string",
             "pattern": "^0x[0-9a-fA-F]{40}$"
           },
           "validAfter": {
             "description": "The unix timestamp after which the payment is valid.",
             "examples": [
               "1716150000"
             ],
             "type": "string"
           }
         }
       }
     }
   },
   "signature": {
     "description": "The EIP-712 hex-encoded signature of the Permit2 PermitWitnessTransferFrom message. Smart account signatures may be longer than 65 bytes.",
     "examples": [
       "0xf3746613c2d920b5fdabc0856f2aeb2d4f88ee6037b8cc5d04a71a4462f134801234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1b"
     ],
     "type": "string",
     "pattern": "^0x[0-9a-fA-F]{130,}$"
   }
 }
}

Fields

permit2_authorization: X402ExactEvmPermit2PayloadPermit2Authorization

signature: X402ExactEvmPermit2PayloadSignature

The EIP-712 hex-encoded signature of the Permit2 PermitWitnessTransferFrom message. Smart account signatures may be longer than 65 bytes.

Implementations

impl X402ExactEvmPermit2Payload

pub fn builder() -> X402ExactEvmPermit2Payload

Trait Implementations

impl Clone for X402ExactEvmPermit2Payload

fn clone(&self) -> X402ExactEvmPermit2Payload

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for X402ExactEvmPermit2Payload

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for X402ExactEvmPermit2Payload

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&X402ExactEvmPermit2Payload> for X402ExactEvmPermit2Payload

fn from(value: &X402ExactEvmPermit2Payload) -> Self

Converts to this type from the input type.

impl From<X402ExactEvmPermit2Payload> for X402ExactEvmPermit2Payload

fn from(value: X402ExactEvmPermit2Payload) -> Self

Converts to this type from the input type.

impl From<X402ExactEvmPermit2Payload> for X402v1PaymentPayloadPayload

fn from(value: X402ExactEvmPermit2Payload) -> Self

Converts to this type from the input type.

impl From<X402ExactEvmPermit2Payload> for X402v2PaymentPayloadPayload

fn from(value: X402ExactEvmPermit2Payload) -> Self

Converts to this type from the input type.

impl Serialize for X402ExactEvmPermit2Payload

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<X402ExactEvmPermit2Payload> for X402ExactEvmPermit2Payload

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(value: X402ExactEvmPermit2Payload) -> Result<Self, ConversionError>

Performs the conversion.