JavaPhoenixClient

JavaPhoenixClient is a Kotlin implementation of the phoenix.js client used to manage Phoenix channels.

Basic Usage

fun connectToChatRoom() {

    // Create the Socket
    val params = hashMapOf("token" to "abc123")
    val socket = Socket("http://localhost:4000/socket/websocket", params)

    // Listen to events on the Socket
    socket.logger = { Log.d("TAG", it) }
    socket.onOpen { Log.d("TAG", "Socket Opened") }
    socket.onClose { Log.d("TAG", "Socket Closed") }
    socket.onError { throwable, response -> Log.d(throwable, "TAG", "Socket Error ${response?.code}") }

    socket.connect()

    // Join channels and listen to events
    val chatroom = socket.channel("chatroom:general")
    chatroom.on("new_message") { message ->
        val payload = message.payload
        ...
    }

    chatroom.join()
            .receive("ok") { /* Joined the chatroom */ }
            .receive("error") { /* failed to join the chatroom */ }
}

If you need to provide dynamic parameters that can change between calls to connect(), then you can pass a closure to the constructor

// Create the Socket
var authToken = "abc"
val socket = Socket("http://localhost:4000/socket/websocket", { mapOf("token" to authToken) })

// Connect with query parameters "?token=abc"
socket.connect()


// later in time, connect with query parameters "?token=xyz"
authToken = "xyz"
socket.connect() // or internal reconnect logic kicks in

You can also inject your own OkHttp Client into the Socket to provide your own configuration

// Configure your own OkHttp Client
val client = OkHttpClient.Builder()
    .connectTimeout(1000, TimeUnit.MILLISECONDS)
    .build()

// Create Socket with your custom instances
val params = hashMapOf("token" to "abc123")
val socket = Socket("http://localhost:4000/socket/websocket",
    params,
    client)

By default, the client use GSON to encode and decode JSON. If you prefer to manage this yourself, you can provide custom encode/decode functions in the Socket constructor.

// Configure your own GSON instance
val gson = Gson.Builder().create()
val encoder: EncodeClosure = {
    // Encode a Map into JSON using your custom GSON instance or another JSON library
    // of your choice (Moshi, etc)
}
val decoder: DecodeClosure = {
    // Decode a JSON String into a `Message` object using your custom JSON library 
}

// Create Socket with your custom instances
val params = hashMapOf("token" to "abc123")
val socket = Socket("http://localhost:4000/socket/websocket",
    params,
    encoder,
    decoder)

Installation

JavaPhoenixClient is hosted on MavenCentral. You'll need to make sure you declare mavenCentral() as one of your repositories

repositories {
    mavenCentral()
}

and then add the library. See releases for the latest version

dependencies {
    implementation 'com.github.dsrees:JavaPhoenixClient:1.3.1'
}

Feedback

Please submit in issue if you have any problems or questions! PRs are also welcome.

This library is built to mirror the phoenix.js and SwiftPhoenixClient libraries.