# Position

Positions represent an owner address' liquidity between a lower and upper tick boundary

Positions store additional state for tracking fees owed to the position

### Functions[​](https://docs.uniswap.org/contracts/v3/reference/core/libraries/Position#functions) <a href="#functions" id="functions"></a>

#### get[​](https://docs.uniswap.org/contracts/v3/reference/core/libraries/Position#get) <a href="#get" id="get"></a>

```solidity
  function get(
    mapping(bytes32 => struct Position.Info) self,
    address owner,
    int24 tickLower,
    int24 tickUpper
  ) internal view returns (struct Position.Info position)
```

Returns the Info struct of a position, given an owner and position boundaries

**Parameters:**[**​**](https://docs.uniswap.org/contracts/v3/reference/core/libraries/Position#parameters)

| Name        | Type                                     | Description                               |
| ----------- | ---------------------------------------- | ----------------------------------------- |
| `self`      | mapping(bytes32 => struct Position.Info) | The mapping containing all user positions |
| `owner`     | address                                  | The address of the position owner         |
| `tickLower` | int24                                    | The lower tick boundary of the position   |
| `tickUpper` | int24                                    | The upper tick boundary of the position   |

**Return Values:**[**​**](https://docs.uniswap.org/contracts/v3/reference/core/libraries/Position#return-values)

| Name       | Type                 | Description                                            |
| ---------- | -------------------- | ------------------------------------------------------ |
| `position` | struct Position.Info | The position info struct of the given owners' position |

#### update[​](https://docs.uniswap.org/contracts/v3/reference/core/libraries/Position#update) <a href="#update" id="update"></a>

```solidity
  function update(
    struct Position.Info self,
    int128 liquidityDelta,
    uint256 feeGrowthInside0X128,
    uint256 feeGrowthInside1X128
  ) internal
```

Credits accumulated fees to a user's position

**Parameters:**[**​**](https://docs.uniswap.org/contracts/v3/reference/core/libraries/Position#parameters-1)

| Name                   | Type                 | Description                                                                                     |
| ---------------------- | -------------------- | ----------------------------------------------------------------------------------------------- |
| `self`                 | struct Position.Info | The mapping containing all user positions                                                       |
| `liquidityDelta`       | int128               | The change in pool liquidity as a result of the position update                                 |
| `feeGrowthInside0X128` | uint256              | The all-time fee growth in token0, per unit of liquidity, inside the position's tick boundaries |
| `feeGrowthInside1X128` | uint256              | The all-time fee growth in token1, per unit of liquidity, inside the position's tick boundaries |