> For the complete documentation index, see [llms.txt](https://developers.polymath.network/polymath/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.polymath.network/polymath/api/presalesto.md).

# STO module for private presales (PreSaleSTO.sol)

View Source: [contracts/modules/STO/PreSale/PreSaleSTO.sol](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/contracts/modules/STO/PreSale/PreSaleSTO.sol)

**↗ Extends:** [**PreSaleSTOStorage**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/PreSaleSTOStorage.md)**,** [**STO**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/STO.md)

**PreSaleSTO**

**Events**

```javascript
event TokensAllocated(address  _investor, uint256  _amount);
```

## Functions

* [(address \_securityToken, address \_polyToken)](/polymath/api/presalesto.md)
* [configure(uint256 \_endTime)](/polymath/api/presalesto.md#configure)
* [getInitFunction()](/polymath/api/presalesto.md#getinitfunction)
* [getNumberInvestors()](/polymath/api/presalesto.md#getnumberinvestors)
* [getTokensSold()](/polymath/api/presalesto.md#gettokenssold)
* [getPermissions()](/polymath/api/presalesto.md#getpermissions)
* [allocateTokens(address \_investor, uint256 \_amount, uint256 \_etherContributed, uint256 \_polyContributed)](/polymath/api/presalesto.md#allocatetokens)
* [allocateTokensMulti(address\[\] \_investors, uint256\[\] \_amounts, uint256\[\] \_etherContributed, uint256\[\] \_polyContributed)](/polymath/api/presalesto.md#allocatetokensmulti)

Constructor

```javascript
function (address _securityToken, address _polyToken) public nonpayable Module
```

**Arguments**

| Name            | Type    | Description                   |
| --------------- | ------- | ----------------------------- |
| \_securityToken | address | Address of the security token |
| \_polyToken     | address |                               |

### configure

Function used to initialize the different variables

```javascript
function configure(uint256 _endTime) public nonpayable onlyFactory
```

**Arguments**

| Name      | Type    | Description                           |
| --------- | ------- | ------------------------------------- |
| \_endTime | uint256 | Unix timestamp at which offering ends |

### getInitFunction

⤾ overrides [IModule.getInitFunction](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/IModule.md#getinitfunction)

This function returns the signature of the configure function

```javascript
function getInitFunction() public pure
returns(bytes4)
```

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

### getNumberInvestors

Returns the total no. of investors

```javascript
function getNumberInvestors() public view
returns(uint256)
```

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

### getTokensSold

⤾ overrides [STO.getTokensSold](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/STO.md#gettokenssold)

Returns the total no. of tokens sold

```javascript
function getTokensSold() external view
returns(uint256)
```

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

### getPermissions

⤾ overrides [IModule.getPermissions](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/IModule.md#getpermissions)

Returns the permissions flag that are associated with STO

```javascript
function getPermissions() public view
returns(bytes32[])
```

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

### allocateTokens

Function used to allocate tokens to the investor

```javascript
function allocateTokens(address _investor, uint256 _amount, uint256 _etherContributed, uint256 _polyContributed) public nonpayable withPerm
```

**Arguments**

| Name               | Type    | Description                                     |
| ------------------ | ------- | ----------------------------------------------- |
| \_investor         | address | Address of the investor                         |
| \_amount           | uint256 | No. of tokens to be transferred to the investor |
| \_etherContributed | uint256 | How much ETH was contributed                    |
| \_polyContributed  | uint256 | How much POLY was contributed                   |

### allocateTokensMulti

Function used to allocate tokens to multiple investors

```javascript
function allocateTokensMulti(address[] _investors, uint256[] _amounts, uint256[] _etherContributed, uint256[] _polyContributed) public nonpayable withPerm
```

**Arguments**

| Name               | Type       | Description                                               |
| ------------------ | ---------- | --------------------------------------------------------- |
| \_investors        | address\[] | Array of address of the investors                         |
| \_amounts          | uint256\[] | Array of no. of tokens to be transferred to the investors |
| \_etherContributed | uint256\[] | Array of amount of ETH contributed by each investor       |
| \_polyContributed  | uint256\[] | Array of amount of POLY contributed by each investor      |