---
title: isSync
framework: xpc
role: symbol
role_heading: Instance Property
path: xpc/xpcreceivedmessage/issync
---

# isSync

A Boolean value that indicates if this message is from a synchronous request.

## Declaration

```swift
var isSync: Bool { get }
```

## See Also

### Accessing message content

- [decode(as:)](xpc/xpcreceivedmessage/decode(as:).md)