Return Mediator contract back

eth-contracts/contracts/Mediator.sol

@@ -0,0 +1,26 @@
+pragma solidity ^0.8.0;
+
+import "@openzeppelin/contracts/access/Ownable.sol";
+import "./interfaces/IDioneOracle.sol";
+
+contract Mediator {
+  event DataReceived(
+    uint256 reqID,
+    string data
+  );
+
+  IDioneOracle dioneOracle;
+
+  constructor(IDioneOracle _dioneOracle) {
+    dioneOracle = _dioneOracle;
+  }
+
+  function request(uint8 originChain, string memory requestType, string memory requestParams) public returns (uint256) {
+    return dioneOracle.requestOracles(originChain, requestType, requestParams, address(this), bytes4(keccak256("_receiveDataCallback(uint256, string)")));
+  }
+
+  function _receiveDataCallback(uint256 reqID, string memory data) public {
+    require(msg.sender == address(dioneOracle));
+    emit DataReceived(reqID, data);
+  }
+}

eth-contracts/contracts/interfaces/IDioneOracle.sol

@@ -0,0 +1,6 @@
+pragma solidity ^0.8.0;
+
+interface IDioneOracle {
+    function requestOracles(uint8 _originChain, string memory _requestType, string memory _requestParams, address _callbackAddress, bytes4 _callbackMethodID) external returns (uint256);
+    function cancelOracleRequest(uint256 _reqID) external;
+}

eth-contracts/hardhat.config.ts

@@ -11,4 +11,12 @@ task("accounts", "Prints the list of accounts", async (args, hre) => {
 
 export default {
   solidity: "0.8.3",
+  networks: {
+    ganache: {
+      url: `http://localhost:7545`,
+      accounts: {
+        mnemonic: "test test test test test test test test test test test junk"
+      }
+    }
+  }
 };

eth-contracts/scripts/deploy.ts

@@ -8,6 +8,7 @@ async function main() {
     const DioneOracle = await ethers.getContractFactory("DioneOracle");
     const DioneDispute = await ethers.getContractFactory("DioneDispute");
     const DioneStaking = await ethers.getContractFactory("DioneStaking");
+    const Mediator = await ethers.getContractFactory("Mediator");
 
     const dioneToken = await DioneToken.deploy();
     await dioneToken.deployed();
@@ -15,15 +16,19 @@ async function main() {
 
     const dioneStaking = await DioneStaking.deploy(dioneToken.address, ethers.constants.WeiPerEther.mul(100), 0, ethers.constants.WeiPerEther.mul(5000));
     await dioneStaking.deployed();
-    console.log("DioneStaking deployed to:", dioneStaking.address);
+    console.log("staking_contract_address = \"" + dioneStaking.address+ "\"");
 
     const dioneDispute = await DioneDispute.deploy(dioneStaking.address);
     await dioneDispute.deployed();
-    console.log("DioneDispute deployed to:", dioneDispute.address);
+    console.log("dispute_contract_address = \"" + dioneDispute.address+ "\"");
 
     const dioneOracle = await DioneOracle.deploy(dioneStaking.address);
     await dioneOracle.deployed();
-    console.log("DioneOracle deployed to:", dioneOracle.address);
+    console.log("oracle_contract_address = \"" + dioneOracle.address+ "\"");
+
+    const mediator = await Mediator.deploy(dioneOracle.address);
+    await mediator.deployed();
+    console.log("mediator_contract_address = \"" + mediator.address +"\"")
 
     await dioneStaking.setOracleContractAddress(dioneOracle.address);
     await dioneStaking.setDisputeContractAddress(dioneOracle.address);
@@ -37,6 +42,8 @@ async function main() {
       await dioneToken.transfer(address, ethers.constants.WeiPerEther.mul(6000));
     }
 
+    await dioneToken.transferOwnership(dioneStaking.address);
+
     const signers = await ethers.getSigners();
     for (var i = 0; i < addresses.length; i++) {
       const staking = dioneStaking.connect(signers[i]);