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# sendData(toAllPeers:with:)

Transmits a collection of bytes to all connected peers.

```
func sendData(toAllPeers data: Data!, with mode: GKSendDataMode) throws
```

## Parameters

`data`

The bytes to be sent.

`mode`

The mechanism used to send the data.

## Discussion

The session queues the data and transmits it when the network is free.

> Handling Errors in Swift:
> In Swift, this method returns `Void` and is marked with the `throws` keyword to indicate that it throws an error in cases of failure.
> 
> You call this method in a `try` expression and handle any errors in the `catch` clauses of a `do` statement, as described in [Error Handling](https://docs.swift.org/swift-book/LanguageGuide/ErrorHandling.html) in [The Swift Programming Language](https://docs.swift.org/swift-book/) and `About Imported Cocoa Error Parameters`.

---

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