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davidstump/SwiftPhoenixClient v0.1
Connect your Phoenix and iOS applications through WebSockets!
⭐️ 436
🕓 Yesterday
iOS macOS watchOS tvOS
.package(url: "https://github.com/davidstump/SwiftPhoenixClient.git", from: "v0.1")

Swift Phoenix Client

Swift Version License Platform Carthage compatible Open Source Helpers


SwiftPhoenixClient is a Swift port of phoenix.js, allowing your swift projects to connect to a Phoenix Websocket backend.

We try out best to keep the library up to date with phoenix.js but if there is something that is missing, please create an issue or, even better, a PR to address the change.

Sample Projects

You can view the example of how to use SwiftPhoenixClient in the Example/ dir. There are two primary classes, BasicViewController and ChatRoomViewController. The BasicViewController is designed to test against a local chat server where as ChatRoomViewController is a more "complete" example which targets dwyl's phoenix-chat-example Heroku app.


SwiftPhoenixClient is broken into different modules which match different use cases


The core module which provides the Phoenix Channels and Presence logic. It also uses URLSession's default WebSocket implementation which has a minimum iOS target of 13.0.


If you are targeting iOS < 13.0, or if you you prefer to use Starscream, then you will need to also use the Starscream module to connect to your server. Installation details can be found below.

import SwiftPhoenixClient
import StarscreamSwiftPhoenixClient

let socket = Socket(endPoint: "https://example.com/", transport: { StarscreamTransport(url: $0) })


If you are also using RxSwift in your project, then this module provides extensions for you to use to observe events on a channel. Installation details can be found below.

import RxSwift
import SwiftPhoenixClient
import RxSwiftPhoenixClient

// Setup the Channel to receive and send messages
let channel = socket.channel(topic)
  .subscribe( onNext: { (message) in
    let payload = message.payload
    // Parse out your payload
  }).disposed(by: disposeBag)



You can install SwiftPhoenix Client via CocoaPods by adding the following to your Podfile. Keep in mind that in order to use Swift Phoenix Client, the minimum iOS target must be '9.0'

pod "SwiftPhoenixClient", '~> 4.0'

# If using RxSwift extensions
pod "SwiftPhoenixClient/RxSwift", '~> 4.0'

# If targeting iOS < 13
pod "SwiftPhoenixClient/Starscream", '~> 4.0'

and running pod install. From there you will need to add import SwiftPhoenixClient in any class you want it to be used.


If you use Carthage to manage your dependencies, simply add SwiftPhoenixClient to your Cartfile:

github "davidstump/SwiftPhoenixClient" ~> 4.0

Then run carthage update.

If this is your first time using Carthage in the project, you'll need to go through some additional steps as explained over at Carthage.

NOTE: At this time, Carthage does not provide a way to build only specific repository submodules. All submodules and their dependencies will be built with the above command. However, you don't need to copy frameworks you aren't using into your project. For instance, if you aren't using RxSwift, feel free to delete that framework along with RxSwiftPhoenixClient from the Carthage Build directory after carthage update completes.


Note: Instructions below are for using SwiftPM without the Xcode UI. It's the easiest to go to your Project Settings -> Swift Packages and add SwiftPhoenixClient from there.

To integrate using Apple's Swift package manager, without Xcode integration, add the following as a dependency to your Package.swift:

.package(url: "https://github.com/davidstump/SwiftPhoenixClient.git", .upToNextMajor(from: "4.0.0"))

and then specify "SwiftPhoenixClient" as a dependency of the Target in which you wish to use SwiftPhoenixClient. If you want to use one of the other module add-ons, add also "RxSwiftPhoenixClient" or "StarscreamSwiftPhoenixClient" as your Target dependency respectively. Here's an example PackageDescription:

// swift-tools-version:5.0
import PackageDescription

let package = Package(
    name: "MyPackage",
    products: [
            name: "MyPackage",
            targets: ["MyPackage"]),
    dependencies: [
        .package(url: "https://github.com/davidstump/SwiftPhoenixClient.git", .upToNextMajor(from: "4.0.0"))
    targets: [
            name: "MyPackage",
            dependencies: ["StarscreamSwiftPhoenixClient"])


Using the Swift Phoenix Client is extremely easy (and familiar if you have used the phoenix.js client).

See the Usage Guide for details instructions. You can also check out the documentation


Check out the ViewController in this repo for a brief example of a simple iOS chat application using the Phoenix Chat Example

Also check out both the Swift and Elixir channels on IRC.


Check out the wiki page for getting started


Many many thanks to Daniel Rees for his many contributions and continued maintenance of this project!


SwiftPhoenixClient is available under the MIT license. See the LICENSE file for more info.


Stars: 436
Last commit: Yesterday
jonrohan Something's broken? Yell at me @ptrpavlik. Praise and feedback (and money) is also welcome.

Release Notes

4 weeks ago

This is a BREAKING release. The following has changed to properly matched the phoenix.js library

  • message.payload.response is now automatically unwrapped and returned as message.payload for phx_reply events.
  • The client now, by default, uses the JSON V2 Serializer which was added in phoenix 1.3. If you are still running 1.2 or earlier, then you will need to continue using SwiftPhoenixClient 2.x, or provide your own custom vsn, encoder and decoder to the Socket class.

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