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# init(discoveredNode:dataReadyHandler:disconnectHandler:)

Creates a MIDI-CI session.

```
init(discoveredNode: MIDICIDiscoveredNode, dataReadyHandler handler: @escaping () -> Void, disconnectHandler: @escaping MIDICISessionDisconnectBlock)
```

## Parameters

`discoveredNode`

A node found during discovery.

`handler`

A block the system calls when the session’s data is ready.

`disconnectHandler`

A block the system calls when you disconnect from the session.

## Topics

### Handling Callbacks

[`MIDICISessionDisconnectBlock`](/documentation/CoreMIDI/MIDICISessionDisconnectBlock)

A block the system calls when a MIDI-CI session disconnects.


---

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