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Swift client for ZetaPush

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Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

Installation

CocoaPods

Check out Get Started tab on cocoapods.org.

To use ZetaPushNetwork in your 'Podfile':

pod 'ZetaPushNetwork', '~> 3.1.6'

Then run:

pod install

Swift Package Manager

The Swift Package Manager is a tool for automating the distribution of Swift code and is integrated into the swift compiler.

Once you have your Swift package set up, adding ZetaPushNetwork as a dependency is as easy as adding it to the dependencies value of your Package.swift.

dependencies: [
    .Package(url: "https://github.com/Insurlytech/CometDClient-iOS.git", majorVersion: 3)
]

Any questions?

Code your first client

Connecting to ZetaPush

You must import the library into your swift file

import ZetaPushNetwork 

Create a ZetaPushWeakClient object. This object will do all the hard work for you to connect to ZetaPush with a weak authentication

import UIKit
import ZetaPushNetwork

class ViewController: UIViewController {

    let zetaPushWeakClient:ZetaPushWeakClient = ZetaPushWeakClient(sandboxId: "YOUR_SANDBOX_ID", weakDeploymentId: "YOUR_WEAK_DEPLOYMENT_ID")

    override func viewDidLoad() {
        super.viewDidLoad()

        // Connect to ZetaPush
        zetaPushWeakClient.connect()
    }
}

That's it. You're connected!

To verify that you're really connected, let's add a callback to be warned when the connection is established.

import UIKit
import ZetaPushNetwork

class ViewController: UIViewController, ClientHelperDelegate {

    let zetaPushWeakClient:ZetaPushWeakClient = ZetaPushWeakClient(sandboxId: "YOUR_SANDBOX_ID", weakDeploymentId: "YOUR_WEAK_DEPLOYMENT_ID")

    override func viewDidLoad() {
        super.viewDidLoad()

        // Handle lifecycle events
        zetaPushWeakClient.delegate = self

        // Connect to ZetaPush
        zetaPushWeakClient.connect()
    }

    // Callback fired when a successful handshake occurs
    func onSuccessfulHandshake(_ client:ClientHelper){
        // The connection to ZetaPush is a success
        print("ViewController SuccessfulHandshake")
    }
}

Call your first service

Now we can call a useless Echo Service that will "echo" ie send back everything we send to him.

If you're not familiar with the publish-subscribe paradigm, you can get more information on our documentation website

To summarize, when you send a message to ZetaPush (Publish), you get the response only if you've have previously asked for it (Subscribe).

For the Echo service, you publish a message on the verb "echo" and you get the response on the verb "echo". The reference site describe all the verb you can publish and the corresponding subscription verb.

Back to the code !

import UIKit
import ZetaPushNetwork

class ViewController: UIViewController, ClientHelperDelegate {

    let zetaPushWeakClient:ZetaPushWeakClient = ZetaPushWeakClient(sandboxId: "YOUR_SANDBOX_ID", weakDeploymentId: "YOUR_WEAK_DEPLOYMENT_ID")
    
    // Declare a new service
    var zetaPushServiceEcho : ZetaPushService?

    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Handle lifecycle events
        zetaPushWeakClient.delegate = self

        // Create an echo service with the corresponding DeploymentId
        zetaPushServiceEcho = ZetaPushService(zetaPushWeakClient, deploymentId: "YOUR_ECHO_DEPLOYMENT_ID")

        // Subscribe to the echo verb
        _ = zetaPushServiceEcho?.subscribe(verb: "echo", block: { (messageDict) in
            print("ViewController zetaPushServiceEcho?.subscribe", messageDict)
        })

        // Connect to ZetaPush
        zetaPushWeakClient.connect()
    }

    // Callback fired when a successful handshake occurs
    func onSuccessfulHandshake(_ client:ClientHelper){
        // The connection to ZetaPush is a success
        print("ViewController SuccessfulHandshake")
    }

    // Just call the echo service when we click on a button
    @IBAction func OnMyFirstTestDown(_ sender: Any) {
        zetaPushServiceEcho?.publish(verb: "echo", parameters: ["hello": "world" as NSObject])
    }

}

That's it, you've called your fist ZetaPush service.

Remenber that a lot of services are available right out of the box on ZetaPush. You can view a full description on our reference website

Much more power with Macros

ZMS overview

You can read an overview of ZMS (ZetaPush Macro Scripts) on our documentation website

You can also follow the QuickStart to install the minimum software to create your first macro.

Our first macro

Les create a simple macro with Eclipe. This macro is the default one when you create a new project (with a return on channel __selfName).

/**
 * Takes a message as input, and returns it, with a server message
 */
macroscript welcome(/** message from the client */ string message = "Hello") {
	// ...
} return {clientMessage : message, serverMessage : WELCOME_MESSAGE} on channel __selfName

Now, let's call it in our iOS project. There's two way to call a macro: with a publish-subscribe style or with a promise.

Call a macro with Publish-Subscribe

Back to code !

import UIKit
import ZetaPushNetwork

class ViewController: UIViewController, ClientHelperDelegate {

    let zetaPushWeakClient:ZetaPushWeakClient = ZetaPushWeakClient(sandboxId: "YOUR_SANDBOX_ID", weakDeploymentId: "YOUR_WEAK_DEPLOYMENT_ID")

    // Declare a new Macro Service
    var zetaPushMacroService: ZetaPushMacroService?

    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Handle lifecycle events
        zetaPushWeakClient.delegate = self

        // Create a new Macro Service (with default deployementId: "macro_0")
        zetaPushMacroService = ZetaPushMacroService(zetaPushWeakClient)

        // Subscribe to the welcome verb
        _ = zetaPushMacroService?.subscribe(verb: "welcome", block: { (messageDic) in
            print("ViewController zetaPushMacroService?.subscribe", messageDic)
        })

        // Connect to ZetaPush
        zetaPushWeakClient.connect()
    }

    // Callback fired when a successful handshake occurs
    func onSuccessfulHandshake(_ client:ClientHelper){
        // The connection to ZetaPush is a success
        print("ViewController SuccessfulHandshake")
    }

    // Just call the macro service when we click on a button
    @IBAction func OnMyFirstTestDown(_ sender: Any) {
        zetaPushMacroService?.call(verb: "welcome", parameters: ["message": "hello world" as NSObject])
    }

}

Call a macro with a promise

Promise a really usefull in asynchronious macro call. For more information you can read more about promise on wikipedia

With ZetaPush IOs SDK, you can call a macro in a "nearly" synchronous way thanks to promises.

import UIKit
import ZetaPushNetwork

class ViewController: UIViewController {

    let zetaPushWeakClient:ZetaPushWeakClient = ZetaPushWeakClient(sandboxId: "YOUR_SANDBOX_ID", weakDeploymentId: "YOUR_WEAK_DEPLOYMENT_ID")

    // Declare a new Macro Service
    var zetaPushMacroService: ZetaPushMacroService?

    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Handle lifecycle events
        zetaPushWeakClient.delegate = self

        // Create a new Macro Service (with default deployementId: "macro_0")
        zetaPushMacroService = ZetaPushMacroService(zetaPushWeakClient)

        // Connect to ZetaPush
        zetaPushWeakClient.connect()
    }

    // Callback fired when a successful handshake occurs
    func onSuccessfulHandshake(_ client:ClientHelper){
        // The connection to ZetaPush is a success
        print("ViewController SuccessfulHandshake")
    }

    // Just call the macro service when we click on a button
    @IBAction func OnMyFirstTestDown(_ sender: Any) {
        zetaPushMacroService?.call(verb: "welcome", parameters: ["message": "hello world" as NSObject])
            .then{ result in
               print ("call result", result)
            }
            .catch { error in
                print ("call error", error)
            }
    }

}

That's it, you are able to call a service and a macro from ZetaPush.

Auto-generated code with ZetaPush CLI

With ZetaPush command line, you can generate a swift code based on zms language. This generated code will give you everything you need to use your macors.

This generated code will create 4 files:

Structure file

In this file, you will get all the structures (classes) needed to call your macro: the input classes, the output clases and the completion classes.

Async API

In this file, a class is generated with all the methods needed to call the macros.

Promise API

In this file, a class is generated with all the methods needed to call the macros. The main difference between the Async API is that the methods return a promise.

AsyncAPIListener

In this file, a class is generated with all the method needed to listen to the result of the macros.

How to use auto-generated code

Create a class that inherit from AsyncAPIListener

In this class, you will override the methods that fits your needs.

open class MyAPIListener: MacrosAsyncApiListener {
    // Only override the method i'm interesting in
    open override func sendMessage(_ parameter: SendMessageCompletion){
        print("sendMessage")
    }
}

When you will create a MyAPIListener object, the sendMessage function will be called each time the corresponding macro is called.

Use the AsyncApi or PromiseAPI objects

// Create the objects with a ZetaPushClient parameter
	webRTCAsyncApi = WebRTCAsyncApi(zetaPushClient)
        webRTCPromiseApi = WebRTCPromiseApi(zetaPushClient)
	
	//To call a promise API
	
	webRTCPromiseApi?.createPublicRoom(parameters: _createPublicRoomInput)
            .then { result -> Void in
                
                print ("createPublicRoom", result.result.room!)
                
            }
            .catch { error in
                print ("createPublicRoom error", error)
        }
	
	// To call the same api with the asyncAPI
	webRTCAsyncApi?.createPublicRoom(parameters: _createPublicRoomInput)
	// The result will be returned to the AsyncAPIListener
	

Contact

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Steven WATREMEZ

Jérémie GOAS

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