Minimal ERC20 interface for Algebra
Contains a subset of the full ERC20 interface that is used in Algebra
Developer note: Credit to Uniswap Labs under GPL-2.0-or-later license: https://github.com/Uniswap/v3-core/tree/main/contracts/interfaces
event Transfer(address from, address to, uint256 value)
Event emitted when tokens are transferred from one address to another, either via `#transfer` or `#transferFrom`.
| Name | Type | Description |
|---|---|---|
| from | address | The account from which the tokens were sent, i.e. the balance decreased |
| to | address | The account to which the tokens were sent, i.e. the balance increased |
| value | uint256 | The amount of tokens that were transferred |
event Approval(address owner, address spender, uint256 value)
Event emitted when the approval amount for the spender of a given owner's tokens changes.
| Name | Type | Description |
|---|---|---|
| owner | address | The account that approved spending of its tokens |
| spender | address | The account for which the spending allowance was modified |
| value | uint256 | The new allowance from the owner to the spender |
function balanceOf(address account) external view returns (uint256) view external
Returns the balance of a token
| Name | Type | Description |
|---|---|---|
| account | address | The account for which to look up the number of tokens it has, i.e. its balance |
Returns:
| Name | Type | Description |
|---|---|---|
| [0] | uint256 | The number of tokens held by the account |
function transfer(address recipient, uint256 amount) external returns (bool) external
Transfers the amount of token from the `msg.sender` to the recipient
| Name | Type | Description |
|---|---|---|
| recipient | address | The account that will receive the amount transferred |
| amount | uint256 | The number of tokens to send from the sender to the recipient |
Returns:
| Name | Type | Description |
|---|---|---|
| [0] | bool | Returns true for a successful transfer, false for an unsuccessful transfer |
function allowance(address owner, address spender) external view returns (uint256) view external
Returns the current allowance given to a spender by an owner
| Name | Type | Description |
|---|---|---|
| owner | address | The account of the token owner |
| spender | address | The account of the token spender |
Returns:
| Name | Type | Description |
|---|---|---|
| [0] | uint256 | The current allowance granted by `owner` to `spender` |
function approve(address spender, uint256 amount) external returns (bool) external
Sets the allowance of a spender from the `msg.sender` to the value `amount`
| Name | Type | Description |
|---|---|---|
| spender | address | The account which will be allowed to spend a given amount of the owners tokens |
| amount | uint256 | The amount of tokens allowed to be used by `spender` |
Returns:
| Name | Type | Description |
|---|---|---|
| [0] | bool | Returns true for a successful approval, false for unsuccessful |
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) external
Transfers `amount` tokens from `sender` to `recipient` up to the allowance given to the `msg.sender`
| Name | Type | Description |
|---|---|---|
| sender | address | The account from which the transfer will be initiated |
| recipient | address | The recipient of the transfer |
| amount | uint256 | The amount of the transfer |
Returns:
| Name | Type | Description |
|---|---|---|
| [0] | bool | Returns true for a successful transfer, false for unsuccessful |