> ## Documentation Index
> Fetch the complete documentation index at: https://docs.saucerswap.finance/llms.txt
> Use this file to discover all available pages before exploring further.

# Liquidity position fee (V2)

> Fetch the current SaucerSwap V2 mint fee from the factory contract in tinycent and convert it to HBAR using the mirror node network exchange rate API.

The following code demonstrates how to retrieve the fee for minting a new liquidity position or adding to an existing position, with the fees expressed in HBAR, using a combination of JSON-RPC and REST API calls.

<Note>
  The `mintFee()` function will return the current fee expressed in **Tinycent** (US).
</Note>

*No gas cost — read-only call.*

<Tabs>
  <Tab title="JSON RPC">
    Resources:

    * [SaucerSwap deployed contract IDs](/developers/contracts)
    * [Ethers.js docs (v6)](https://docs.ethers.org/v6/)
    * [Hedera JSON RPC Relay](https://docs.hedera.com/evm/tutorials/intermediate/json-rpc-connections)
    * [Hedera REST API](https://docs.hedera.com/hedera/sdks-and-apis/rest-api)

    ```typescript theme={null}
    import * as ethers from 'ethers'; //V6

    //Set one of Hedera's JSON RPC Relay as the provider
    const provider = new ethers.JsonRpcProvider(hederaJsonRelayUrl, '', {
      batchMaxCount: 1, //workaround for V6
    });

    //load ABI data containing Factory's mintFee() function
    const interfaces = new ethers.Interface(abi);

    //get pool creation fee in tinycent
    const factoryContract = new ethers.Contract(factoryV2EvmAddress, interfaces.fragments, provider);
    const result = await factoryContract.mintFee();
    const tinycent = Number(result); //amount in tinycent (US)

    //get the current exchange rate via REST API
    const url = `${mirrorNodeBaseUrl}/api/v1/network/exchangerate`;
    const response = await axios.get(url);
    const currentRate = response.data.current_rate;
    const centEquivalent = Number(currentRate.cent_equivalent);
    const hbarEquivalent = Number(currentRate.hbar_equivalent);
    const centToHbarRatio = centEquivalent/hbarEquivalent;

    //calculate the fee in terms of HBAR
    const tinybar = BigNumber(tinycent / centToHbarRatio).decimalPlaces(0);
    const mintFeeInHbar = Hbar.from(tinybar, HbarUnit.Tinybar);
    console.log(`New liquidity position fee: ${mintFeeInHbar.toString(HbarUnit.Hbar)}`);
    ```
  </Tab>
</Tabs>

## Next steps

<CardGroup cols={2}>
  <Card title="New liquidity position (V2)" href="/developers/v2/liquidity/new-liquidity-position">
    Use the fee when minting a position.
  </Card>

  <Card title="Contract deployments" href="/developers/contracts">
    Factory and position manager IDs for mainnet and testnet.
  </Card>
</CardGroup>