Sailos
Protocol

Cross Chain Messaging

Introduction


Image

Manage Groups and Prove from any Chain.

Interface

Call the following functions on the forwarder contract to pass messages to the base chain GroupManager Contract.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
 
interface IForwarder {
 
    // Directly verify proofs on the base chain.
    function verifyProof(
        uint256 groupId,
        uint256 merkleTreeRoot,
        uint256 signal,
        uint256 nullifierHash,
        uint256 externalNullifier,
        uint256[8] calldata proof
    ) external;
 
    // Directly send `abi.encodeWithSelector` messages to the GroupManager Contract.
    function _sendInternal(
        bytes memory __selectorEncodedPayload
    ) external;
}

Integration

Grab the required Addresses

Setup Contracts

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
 
import './IForwarder.sol';
 
contract OmnidDemo {
 
    IForwarder forwarder;
    constructor (address _forwarderAddress) {
        forwarder = IForwarder(_forwarderAddress);
    }
 
    function verifyProof(
        uint256 groupId,
        uint256 merkleTreeRoot,
        uint256 signal,
        uint256 nullifierHash,
        uint256 externalNullifier,
        uint256[8] calldata proof
    ) public {
        forwarder.verifyProof(
            groupId,
            merkleTreeRoot,
            signal,
            nullifierHash,
            externalNullifier,
            proof
        );
    }
 
}

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