From 5dabfe56159bd23b6f3c70cbabc2e05ae8544320 Mon Sep 17 00:00:00 2001
From: Thomas Nguy <thomas.nguy@crypto.com>
Date: Fri, 27 Aug 2021 11:40:33 +0900
Subject: [PATCH] add callback

---
 modules/apps/transfer/keeper/callbacks.go | 19 +++++++++++++++++++
 modules/apps/transfer/module.go           |  2 +-
 2 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 modules/apps/transfer/keeper/callbacks.go

diff --git a/modules/apps/transfer/keeper/callbacks.go b/modules/apps/transfer/keeper/callbacks.go
new file mode 100644
index 00000000000..ee5a078f72a
--- /dev/null
+++ b/modules/apps/transfer/keeper/callbacks.go
@@ -0,0 +1,19 @@
+package keeper
+
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	capabilitytypes "github.com/cosmos/cosmos-sdk/x/capability/types"
+	"github.com/cosmos/ibc-go/modules/core/exported"
+)
+
+// SendPacket is called by a module in order to send an IBC packet on a channel
+// end owned by the calling module to the corresponding module on the counterparty
+// chain.
+func (k Keeper) SendPacket(
+	ctx sdk.Context,
+	channelCap *capabilitytypes.Capability,
+	packet exported.PacketI,
+) error {
+	//todo
+	return k.channelKeeper.SendPacket(ctx, channelCap, packet)
+}
diff --git a/modules/apps/transfer/module.go b/modules/apps/transfer/module.go
index bae622f2fde..7e51a627b3e 100644
--- a/modules/apps/transfer/module.go
+++ b/modules/apps/transfer/module.go
@@ -246,7 +246,7 @@ func (am AppModule) OnChanOpenInit(
 		transferVersion = appVersion
 	}
 
-	if err := ValidateTransferChannelParams(ctx, am.keeper, order, portID, channelID, appVersion); err != nil {
+	if err := ValidateTransferChannelParams(ctx, am.keeper, order, portID, channelID, transferVersion); err != nil {
 		return err
 	}