---
title: "inboundStreams(_:)"
framework: network
role: symbol
role_heading: Instance Method
path: "network/networkconnection/inboundstreams(_:)"
---

# inboundStreams(_:)

Handle inbound streams and provide a closure on which callback handlers will be executed. When the NetworkConnection<QUIC> state moves to ready, the internal listener is registered with the system and can receive incoming streams on the multiplexing instance. inboundStreams should only be called once on a NetworkConnection<QUIC>, and multiple calls to run will throw an exception.

## Declaration

```swift
final func inboundStreams(_ handler: @escaping @isolated(any) @Sendable (QUIC.Stream<QUICStream>) async throws -> Void) async throws
```

## Discussion

Discussion If the NetworkConnection<QUIC> is not started at the time that inboundStreams is invoked, it will be started. The closure inherits the isolation domain of the caller.