> For the complete documentation index, see [llms.txt](https://docs.gooddollar.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gooddollar.org/previous-protocol-versions/protocol-v3/core-contracts-and-api/compoundstakingfactory.md).

# CompoundStakingFactory

The staking contract that donates earned interest to the DAO.

The contract allow stakers to deposit Token (DAI) or withdraw their stake in Token (DAI) the contracts buy cToken (cDAI) and can transfer the daily interest to the DAO.

### Events

#### Deployed

Emitted when new clone of the Compound staking contract was deployed.

<table><thead><tr><th width="389.63805195347794">Parameter name</th><th>Annotation</th></tr></thead><tbody><tr><td>proxy</td><td>The ERC1167 clones factory.</td></tr><tr><td>cToken</td><td>The compound token which is accepted in the deployed staking contract clone.</td></tr><tr><td>impl</td><td>The amount of claimers claims.</td></tr></tbody></table>

```
event Deployed(address proxy, address cToken, address impl);
```

### cloneAndInit

The function instantiates and initalizes an EIP 1167 proxy contract as minimal clone of the staking contract at public field `impl`.

<table><thead><tr><th width="301.8711599216471">Parameter name</th><th>Annotation</th></tr></thead><tbody><tr><td>_cToken</td><td>The compound token to be used for staking in this contract.</td></tr><tr><td>_ns</td><td>The NameService contract address which holds all the necessary addresses.</td></tr><tr><td>_maxRewardThreshold</td><td>The amount of blocks that need to pass in order to user would get their rewards with 1x multiplier instead of 0.5x.</td></tr><tr><td>_tokenUsdOracle</td><td>The address of the TOKEN/USD oracle. (TOKEN is the underlying token of <code>_cToken</code>.)</td></tr><tr><td>_compUsdOracle</td><td>The address of the AAVE/USD oracle.</td></tr><tr><td>_tokenToDaiSwapPath</td><td>The UniswapV2 swap path from TOKEN to DAI. (TOKEN is the underlying token of <code>_cToken</code>.)</td></tr></tbody></table>

```
function cloneAndInit(
    address _cToken,
    address _ns,
    uint64 _maxRewardThreshold,
    address _tokenUsdOracle,
    address _compUsdOracle,
    address[] memory _tokenToDaiSwapPath
) public;
```

There is another overloaded version of the signature:&#x20;

```
function cloneAndInit(
    address _impl,
    address _cToken,
    address _ns,
    uint64 _maxRewardThreshold,
    address _tokenUsdOracle,
    address _compUsdOracle,
    address[] memory _tokenToDaiSwapPath
) public;
```

Here you can specify the `_impl` of the clone proxy.

### predictAddress

The function is to compute the address of the proxy clone of the staking contract to deploy.

<table><thead><tr><th width="150">Parameter name</th><th>Annotation</th></tr></thead><tbody><tr><td>_impl</td><td>The imlementation of the staking contract.</td></tr><tr><td>cToken</td><td>First parameter of the constructor for <code>_impl</code>. (The compound token to stake.)</td></tr><tr><td>paramsHash</td><td>The keccak256 hash of remaining parameters of the constructor for <code>_impl</code>.</td></tr></tbody></table>

Returns: an address of the clone to be deployed.

```
function predictAddress(
    address _impl,
    address cToken,
    bytes32 paramsHash
) public view returns (address);
```