---
title: WAService
framework: wifiaware
role: symbol
role_heading: Protocol
path: wifiaware/waservice
---

# WAService

A protocol that defines a service that a device can publish or subscribe to.

## Declaration

```swift
protocol WAService : CustomStringConvertible, Decodable, Encodable, Hashable, Identifiable, Sendable
```

## Overview

Overview A service represents a specific function or use case that’s performed over Wi-Fi Aware. Services are specific functionality and protocols that your app can publish or subscribe to on other devices. Services are identified by a service name string that follows the rules in RFC 6763 and RFC 6335. For a service name of example-service, the full service name encoded in the Info.plist and sent over the air is either _example-service._tcp if using the TCP protocol or _example-service._udp if using any other protocol. You must register your app with a unique name in the IANA service name registry to avoid conflicts with other apps and devices. If you have an invalid service name in the Info.plist, your app crashes.

## Topics

### Selecting from your app’s services

- [allServices](wifiaware/waservice/allservices.md)

### Checking a service name

- [name](wifiaware/waservice/name.md)

## Relationships

### Inherits From

- [CustomStringConvertible](swift/customstringconvertible.md)
- [Decodable](swift/decodable.md)
- [Encodable](swift/encodable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [Identifiable](swift/identifiable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

### Conforming Types

- [WAPublishableService](wifiaware/wapublishableservice.md)
- [WASubscribableService](wifiaware/wasubscribableservice.md)

## See Also

### Services to discover

- [WASubscribableService](wifiaware/wasubscribableservice.md)
- [WAPublishableService](wifiaware/wapublishableservice.md)