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Emit an event to indicate a successful acknowledgement in the ICA module #1466

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merged 10 commits into from
Jun 7, 2022
Merged

Emit an event to indicate a successful acknowledgement in the ICA module #1466

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5f7aba1
feat: Emit an event to indicate a successful acknowledgement in the I…
chatton May 30, 2022
4707987
Merge branch 'main' into cian/issue#1452-ica-module-does-not-emit-an-…
chatton May 30, 2022
6702d96
feat: Handle both event types in a single function. Added entry to CH…
chatton Jun 2, 2022
b52209b
Merge remote-tracking branch 'origin/cian/issue#1452-ica-module-does-…
chatton Jun 2, 2022
94360ae
Merge branch 'main' into cian/issue#1452-ica-module-does-not-emit-an-…
chatton Jun 2, 2022
def3a0d
Merge branch 'main' into cian/issue#1452-ica-module-does-not-emit-an-…
chatton Jun 3, 2022
2987233
Merge branch 'main' into cian/issue#1452-ica-module-does-not-emit-an-…
chatton Jun 3, 2022
c77f3c7
creating icatypes AttributeKeyAckSuccess, changing errorMsg to var de…
chatton Jun 7, 2022
c8ffcb4
Merge remote-tracking branch 'origin/cian/issue#1452-ica-module-does-…
chatton Jun 7, 2022
997ba57
Merge branch 'main' into cian/issue#1452-ica-module-does-not-emit-an-…
chatton Jun 7, 2022
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14 changes: 10 additions & 4 deletions modules/apps/27-interchain-accounts/host/ibc_module.go
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Original file line number Diff line number Diff line change
Expand Up @@ -110,15 +110,21 @@ func (im IBCModule) OnRecvPacket(
}

txResponse, err := im.keeper.OnRecvPacket(ctx, packet)
ack := channeltypes.NewResultAcknowledgement(txResponse)
if err != nil {
// Emit an event including the error msg
keeper.EmitWriteErrorAcknowledgementEvent(ctx, packet, err)
ack = types.NewErrorAcknowledgement(err)
}

return types.NewErrorAcknowledgement(err)
if err == nil {
// Emit an event indicating a successful acknowledgement.
keeper.EmitSuccessfulAcknowledgementEvent(ctx, packet)
} else {
// Emit an event including the error msg.
keeper.EmitWriteErrorAcknowledgementEvent(ctx, packet, err)
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Not saying that you should change it, but just leaving here for your consideration an alternative way of doing this to avoid checking for err twice:

var ack channeltypes.Acknowledgement
if err == nil {
 	// Emit an event indicating a successful acknowledgement.
 	keeper.EmitSuccessfulAcknowledgementEvent(ctx, packet)
        ack = types.NewErrorAcknowledgement(err)
} else {
 	// Emit an event including the error msg.
 	keeper.EmitWriteErrorAcknowledgementEvent(ctx, packet, err)
 	ack = channeltypes.NewResultAcknowledgement(txResponse)
}

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My intention was to keep the style similar to what we have here

}

// NOTE: acknowledgement will be written synchronously during IBC handler execution.
return channeltypes.NewResultAcknowledgement(txResponse)
return ack
}

// OnAcknowledgementPacket implements the IBCModule interface
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11 changes: 11 additions & 0 deletions modules/apps/27-interchain-accounts/host/keeper/events.go
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Original file line number Diff line number Diff line change
Expand Up @@ -18,3 +18,14 @@ func EmitWriteErrorAcknowledgementEvent(ctx sdk.Context, packet exported.PacketI
),
)
}

// EmitSuccessfulAcknowledgementEvent emits an event signalling a successful acknowledgement
func EmitSuccessfulAcknowledgementEvent(ctx sdk.Context, packet exported.PacketI) {
ctx.EventManager().EmitEvent(
sdk.NewEvent(
icatypes.EventTypePacket,
sdk.NewAttribute(sdk.AttributeKeyModule, icatypes.ModuleName),
sdk.NewAttribute(icatypes.AttributeKeyHostChannelID, packet.GetDestChannel()),
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I would like input on whether or not there are additional fields/attributes that should be included in this event. Please let me know if I've missed anything!

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This looks fine, maybe we could add a AttributeKeyAckSuccess like for transfer.

But I am also now wondering if we could merge both event functions into one and have something like this:

ctx.EventManager().EmitEvent(
	sdk.NewEvent(
		icatypes.EventTypePacket,
		sdk.NewAttribute(sdk.AttributeKeyModule, icatypes.ModuleName),
		sdk.NewAttribute(icatypes.AttributeKeyAckError, err.Error()),
		sdk.NewAttribute(icatypes.AttributeKeyHostChannelID, packet.GetDestChannel()),
                sdk.NewAttribute(icatypes.AttributeKeyAckSuccess, fmt.Sprintf("%t", ack.Success())),
	),
)

with the icatypes.AttributeKeyAckError empty if it was successful.

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I was actually thinking something very similar with regards to merging the functions.

),
)
}