Problem: no acknowledgement detail in ica callback

[mmsqe]

smart contract could get more detail when receives callback onPacketResult instead of a simple boolean indicating success or failure.

[yihuang]

but we need to keep it backward compatible, right? to avoid breaking existing contracts?

[mmsqe]

but we need to keep it backward compatible, right? to avoid breaking existing contracts?

yes, but if we add it as a new, we need call both functions?

function onPacketResultCallback(string calldata packetSrcChannel, uint64 seq, bool ack) external payable returns (bool);
function onPacketResultCallbackWithDetail(string calldata packetSrcChannel, uint64 seq, bool ack, bytes calldata rsp) external payable returns (bool);

[yihuang]

better not, how about making the query api a special case, adding new apis only for query msg, without changing existing apis at all.

[mmsqe]

not sure if we just pass req.Data to contract, not sure how contract handle dynamically since safeRsp.Responses could come from query balance or param

var safeRes hosttypes.MsgModuleQuerySafe
err := proto.Unmarshal(res.GetResult(), &safeRes)
if err != nil {
	return err
}
for _, req := range safeRes.Requests {
	var safeRsp hosttypes.MsgModuleQuerySafeResponse
	if err := k.cdc.Unmarshal(req.Data, &safeRsp); err != nil {
		return err
	}
}