The Pantos Token ABI is a JSON representation of the PantosToken smart contract's interface, containing the functions and events necessary for interacting with cross-chain tokens.
The ABI acts as an interface between the contract's bytecode and the outside world. Here's a breakdown of the important elements in the Pantos Token ABI.
Called by the Pantos Forwarder to transfer tokens on a blockchain.
The function is only callable by a trusted Pantos Forwarder contract and thefore can't be invoked by a user. The function is used to transfer tokens on a blockchain between the sender and recipient. Revert if anything prevents the transfer from happening.
function pantosTransfer(address sender, address recipient, uint256 amount)
external;Parameters
| Name | Type | Description |
|---|---|---|
sender |
address |
The address of the sender of the tokens. |
recipient |
address |
The address of the recipient of the tokens. |
amount |
uint256 |
The amount of tokens to mint. |
Called by the Pantos Forwarder to debit tokens on the source blockchain during a cross-chain transfer.
The function is only callable by a trusted Pantos Forwarder contract and thefore can't be invoked by a user. The function is used to burn tokens on the source blockchain to initiate a cross-chain transfer. Revert if anything prevents the transfer from happening.
function pantosTransferFrom(address sender, uint256 amount) external;Parameters
| Name | Type | Description |
|---|---|---|
sender |
address |
The address of the sender of the tokens. |
amount |
uint256 |
The amount of tokens to send/burn. |
Called by the Pantos Forwarder to mint tokens on the destination blockchain during a cross-chain transfer.
The function is only callable by a trusted Pantos Forwarder contract and thefore can't be invoked by a user. The function is used to mint tokens on the destination blockchain to finish a cross-chain transfer. Revert if anything prevents the transfer from happening.
function pantosTransferTo(address recipient, uint256 amount) external;Parameters
| Name | Type | Description |
|---|---|---|
recipient |
address |
The address of the recipient of the tokens. |
amount |
uint256 |
The amount of tokens to mint. |
Returns the address of the Pantos Forwarder contract.
function getPantosForwarder() external view returns (address);Returns
| Name | Type | Description |
|---|---|---|
<none> |
address |
Address of the Pantos Forwarder. |
Returns the value of tokens in existence.
function totalSupply() external view returns (uint256);Returns the value of tokens owned by account.
function balanceOf(address account) external view returns (uint256);Moves a value amount of tokens from the caller's account to to.
Returns a boolean value indicating whether the operation succeeded.
Emits a Transfer event.
function transfer(address to, uint256 value) external returns (bool);Returns the remaining number of tokens that spender will be
allowed to spend on behalf of owner through transferFrom. This is
zero by default.
This value changes when {approve} or {transferFrom} are called.
function allowance(address owner, address spender) external view returns (uint256);Sets a value amount of tokens as the allowance of spender over the
caller's tokens.
Returns a boolean value indicating whether the operation succeeded.
IMPORTANT: Beware that changing an allowance with this method brings the risk
that someone may use both the old and the new allowance by unfortunate
transaction ordering. One possible solution to mitigate this race
condition is to first reduce the spender's allowance to 0 and set the
desired value afterwards:
ethereum/EIPs#20 (comment)
Emits an Approval event.
function approve(address spender, uint256 value) external returns (bool);Moves a value amount of tokens from from to to using the
allowance mechanism. value is then deducted from the caller's
allowance.
Returns a boolean value indicating whether the operation succeeded.
Emits a Transfer event.
function transferFrom(address from, address to, uint256 value) external returns (bool);function decimals() external view returns (uint8);Returns
| Name | Type | Description |
|---|---|---|
<none> |
uint8 |
The token decimals. |
function symbol() external view returns (string memory);Returns
| Name | Type | Description |
|---|---|---|
<none> |
string |
The token symbol. |
function name() external view returns (string memory);Returns
| Name | Type | Description |
|---|---|---|
<none> |
string |
The token name. |
function getOwner() external view returns (address);Returns
| Name | Type | Description |
|---|---|---|
<none> |
address |
The token owner. |
Returns true if this contract implements the interface defined by
interfaceId. See the corresponding
https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
to learn more about how these ids are created.
This function call must use less than 30 000 gas.
function supportsInterface(bytes4 interfaceId) external view returns (bool);event PantosForwarderSet(address pantosForwarder);event PantosForwarderUnset();Emitted when value tokens are moved from one account (from) to
another (to).
Note that value may be zero.
event Transfer(address indexed from, address indexed to, uint256 value);Emitted when the allowance of a spender for an owner is set by
a call to approve. value is the new allowance.
event Approval(address indexed owner, address indexed spender, uint256 value);[
{
"type": "function",
"name": "allowance",
"inputs": [
{
"name": "owner",
"type": "address",
"internalType": "address"
},
{
"name": "spender",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"type": "function",
"name": "approve",
"inputs": [
{
"name": "spender",
"type": "address",
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "nonpayable"
},
{
"type": "function",
"name": "balanceOf",
"inputs": [
{
"name": "account",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"type": "function",
"name": "decimals",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint8",
"internalType": "uint8"
}
],
"stateMutability": "view"
},
{
"type": "function",
"name": "getOwner",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "view"
},
{
"type": "function",
"name": "getPantosForwarder",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "view"
},
{
"type": "function",
"name": "name",
"inputs": [],
"outputs": [
{
"name": "",
"type": "string",
"internalType": "string"
}
],
"stateMutability": "view"
},
{
"type": "function",
"name": "pantosTransfer",
"inputs": [
{
"name": "sender",
"type": "address",
"internalType": "address"
},
{
"name": "recipient",
"type": "address",
"internalType": "address"
},
{
"name": "amount",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"type": "function",
"name": "pantosTransferFrom",
"inputs": [
{
"name": "sender",
"type": "address",
"internalType": "address"
},
{
"name": "amount",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"type": "function",
"name": "pantosTransferTo",
"inputs": [
{
"name": "recipient",
"type": "address",
"internalType": "address"
},
{
"name": "amount",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"type": "function",
"name": "supportsInterface",
"inputs": [
{
"name": "interfaceId",
"type": "bytes4",
"internalType": "bytes4"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "view"
},
{
"type": "function",
"name": "symbol",
"inputs": [],
"outputs": [
{
"name": "",
"type": "string",
"internalType": "string"
}
],
"stateMutability": "view"
},
{
"type": "function",
"name": "totalSupply",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"type": "function",
"name": "transfer",
"inputs": [
{
"name": "to",
"type": "address",
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "nonpayable"
},
{
"type": "function",
"name": "transferFrom",
"inputs": [
{
"name": "from",
"type": "address",
"internalType": "address"
},
{
"name": "to",
"type": "address",
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "nonpayable"
},
{
"type": "event",
"name": "Approval",
"inputs": [
{
"name": "owner",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "spender",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"type": "event",
"name": "PantosForwarderSet",
"inputs": [
{
"name": "pantosForwarder",
"type": "address",
"indexed": false,
"internalType": "address"
}
],
"anonymous": false
},
{
"type": "event",
"name": "PantosForwarderUnset",
"inputs": [],
"anonymous": false
},
{
"type": "event",
"name": "Transfer",
"inputs": [
{
"name": "from",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "to",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
}
]