---
title: NIDiscoveryToken
framework: nearbyinteraction
role: symbol
role_heading: Class
path: nearbyinteraction/nidiscoverytoken
---

# NIDiscoveryToken

An object that uniquely identifies a peer that participates in an interaction session.

## Declaration

```swift
class NIDiscoveryToken
```

## Mentioned in

Extending advanced direction finding and ranging

## Overview

Overview Use NIDiscoveryToken to determine the peer device’s nearby interaction capabilities by examining the deviceCapabilities that describes the available capabilities on a person’s device.

## Topics

### Understanding device capabilities

- [deviceCapabilities](nearbyinteraction/nidiscoverytoken/devicecapabilities.md)

### Initializers

- [init(coder:)](nearbyinteraction/nidiscoverytoken/init(coder:).md)

## Relationships

### Inherits From

- [NSObject](objectivec/nsobject-swift.class.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCoding](foundation/nscoding.md)
- [NSCopying](foundation/nscopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [NSSecureCoding](foundation/nssecurecoding.md)

## See Also

### Connecting to a peer device

- [discoveryToken](nearbyinteraction/nisession/discoverytoken.md)
- [run(_:)](nearbyinteraction/nisession/run(_:).md)
- [configuration](nearbyinteraction/nisession/configuration.md)
- [delegateQueue](nearbyinteraction/nisession/delegatequeue.md)