I have called API dynamically using Oraclize with the delay of 10 minutes. The code is shown below and it works well.

  uint256 constant DELAY = 60*10;
  event Log(string result);

  function __callback(bytes32 _queryID,string memory result,bytes memory _proof)public
    emit Log(result);

  function update()public payable{


But if I got _callback transaction error while running the above code in ethereum-bridge and How to notify that error to the front end?

Platform : Privatenet solidity: 0.4.21 Truffle : 4.1.5

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