79 lines
1.5 KiB
Markdown
79 lines
1.5 KiB
Markdown
<!--
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order: 5
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-->
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# Callbacks
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Application modules implementing the IBC module must implement the following callbacks as found in [05-port](../05-port/types/module.go).
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```go
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// IBCModule defines an interface that implements all the callbacks
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// that modules must define as specified in ICS-26
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type IBCModule interface {
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OnChanOpenInit(
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ctx sdk.Context,
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order channeltypes.Order,
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connectionHops []string,
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portID string,
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channelID string,
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channelCap *capability.Capability,
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counterParty channeltypes.Counterparty,
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version string,
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) error
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OnChanOpenTry(
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ctx sdk.Context,
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order channeltypes.Order,
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connectionHops []string,
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portID,
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channelID string,
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channelCap *capability.Capability,
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counterparty channeltypes.Counterparty,
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version,
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counterpartyVersion string,
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) error
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OnChanOpenAck(
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ctx sdk.Context,
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portID,
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channelID string,
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counterpartyVersion string,
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) error
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OnChanOpenConfirm(
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ctx sdk.Context,
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portID,
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channelID string,
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) error
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OnChanCloseInit(
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ctx sdk.Context,
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portID,
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channelID string,
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) error
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OnChanCloseConfirm(
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ctx sdk.Context,
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portID,
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channelID string,
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) error
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// OnRecvPacket must return the acknowledgement bytes
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OnRecvPacket(
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ctx sdk.Context,
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packet channeltypes.Packet,
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) (*sdk.Result, []byte, error)
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OnAcknowledgementPacket(
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ctx sdk.Context,
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packet channeltypes.Packet,
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acknowledgement []byte,
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) (*sdk.Result, error)
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OnTimeoutPacket(
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ctx sdk.Context,
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packet channeltypes.Packet,
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) (*sdk.Result, error)
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}
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```
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