Integrations

Guide to connect your smart contracts and application to Owy contracts.

We highly recommend you to have a read and understanding the contract(s) from Owy you want to work it. You can do this by looking at Source Codes or Deployment Adresses.

At the moment, there is only one contract from Owy, the Owy Token contract, and it is only launched on the Sepolia Testnet. You may want to recheck the mainnet version again after the official document release. However, this guide now should give you the sense what is possible with Owy Token contract because all or majority of the code will remain the same on the mainnet.

Called by an external address. Required allowance value more than zero. Sender the funds from from to to with the amount value (with 18 decimals). If successful, return true. Anything else beyond this, it works similar to transfer. Sender will pay the required tax amount.

function transferFromWithSlippage(
        address from,
        address to,
        uint256 value,
        uint256 maxTax
    ) external returns (bool);

Called by an external address. Required allowance value more than zero. Sender the funds from from to to with the amount value (with 18 decimals). If successful, return true. Anything else beyond this, it works similar to transferWithSlippage. Sender will pay the required tax amount.

function transferFromFixedAmouunt(
        address from,
        address to,
        uint256 value,
        uint256 taxOffer
    ) external returns (bool, uint256);

Called by an external address. Required allowance value more than zero. Sender the funds from from to to with the amount value (with 18 decimals). If successful, return true. Anything else beyond this, it works similar to transferFixedAmount. Sender will pay the offered tax amount.

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Events

event Transfer(
        address indexed from,
        address indexed to,
        uint256 value,
        uint256 realValue
    );

Emit this event whenever any transfer or transferFrom functions succeed.

event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );

Emit this event whnever any approval functions succeed.

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Errors

Below is the list of errors in Owy Token contract. You may need to go through the Owy.sol contract to find out more where each of the error will be raised.

error ERC20InsufficientBalance(
        address sender,
        uint256 balance,
        uint256 needed
    );

    error ERC20InvalidSender();

    error ERC20InvalidReceiver();

    error ERC20InvalidAmount();

    error ERC20InsufficientAllowance(
        address spender,
        uint256 allowance,
        uint256 needed
    );

    error ERC20InvalidApprove(address approver, address spender);

    error ERC20SlippageExceed(uint256 tax, uint256 maxTax);

    error ERC20InsufficientTaxOffer(uint256 tax, uint256 taxOffer);

    error ERC2612ExpiredSignature(uint256 deadline);

    error ERC2612InvalidSigner(address signer, address owner);