# 合约架构

<figure><img src="/files/BN0sYed3pYgu5IEUKn4N" alt=""><figcaption></figcaption></figure>

### Router合约功能

{% embed url="<https://github.com/solv-finance/SolvBTC/blob/main/contracts/SolvBTCRouter.sol>" %}
**SolvBTC和SolvBTC LST路由合约代码库**
{% endembed %}

#### 存款

```
/**
 * Subscribe with payment currency (i.e. WBTC) and receive SolvBTC.
 * @param poolId: The pool ID corresponding to SolvBTC or SolvBTC LST.
 * @param currencyAmount: Amount of currency to be deposited.
 * @return shareValue: Amount of SolvBTC to be received after subscription.
 */
function createSubscription(bytes32 poolId, uint256 currencyAmount) external returns (uint256 shareValue);
```

#### 提款请求

```
/**
 * Redeem with SolvBTC and receive currency (i.e. WBTC).
 * @param poolId: The pool ID corresponding to SolvBTC or SolvBTC LST.
 * @param redeemAmount: Amount of SolvBTC to be withdrawn.
 * @return redemptionId: TokenId of the redemption SFT to be received after redemption.
 */
function createRedemption(bytes32 poolId, uint256 redeemAmount) external returns (uint256 redemptionId);
```

#### 撤销提款请求

```
/**
 * Revoke redemption with target the tokenId of redemption SFT and receive SolvBTC 
 * with an equivalent amount of the value of the redemption SFT token.
 * @param poolId: The pool ID corresponding to SolvBTC or SolvBTC LST.
 * @param redemptionId: TokenId of the redemption SFT to be revoked.
 */
function cancelRedemption(bytes32 poolId, uint256 redemptionId) external;
```

### 提款功能

{% embed url="<https://github.com/solv-finance/solv-contracts-v3/blob/main/sft/abilities/contracts/multi-repayable/MultiRepayableDelegate.sol>" %}
**提款功能代码库**
{% endembed %}

#### WithDraw (索赔)

```
function claimTo(address to_, uint256 tokenId_, address currency_, uint256 claimValue_) external
```


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