30 lines
886 B
Solidity
30 lines
886 B
Solidity
//SPDX-License-Identifier: MIT
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pragma solidity >= 0.5.0 < 0.7.0;
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import "./vendor/Ownable.sol";
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import "./OracleEmitter.sol";
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contract Mediator is Ownable {
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event DataReceived(
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uint256 reqID,
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string data
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);
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OracleEmitter oracleEmitter;
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address aggregator;
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constructor(address _oracleEmitter, address _aggregator) public Ownable() {
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oracleEmitter = OracleEmitter(_oracleEmitter);
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aggregator = _aggregator;
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}
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function request(uint8 memory originChain, uint8 memory requestType, string memory requestParams) public returns (uint256) {
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return oracleEmitter.requestOracles(originChain, requestType, requestParams, address(this), bytes4(keccak256("_receiveDataCallback(uint256, string)")));
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}
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function _receiveDataCallback(uint256 reqID, string memory data) public {
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require(msg.sender == aggregator);
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emit DataReceived(reqID, data);
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}
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}
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