iOS Swift Client SDK

This document describes how to install the Nabto WebRTC SDK for iOS Swift. This library provides signaling for iOS Swift based projects used with the Nabto WebRTC Signaling Service.

Nabto WebRTC SDK for iOS

Installation

Currently the SDK only supports Swift Package Manager. Proper support for Cocoapods is planned, it is however already possible to use an SPM package in a Cocoapods project.

In your .xcodeproj or .xcworkspace, add the package by pressing File > Add Package Dependencies... then go to the settings for your target in your xcode project and add NabtoWebRTC and NabtoWebRTCUtil to the “Frameworks, Libraries, and Embedded Content” option.

If you are using a Package.swift file to specify dependencies, first add the following line to the dependencies list.

.package(url: "https://github.com/nabto/nabto-webrtc-sdk-ios.git", from: "v0.0.2")

Then add NabtoWebRTC and NabtoWebRTCUtil to your target’s dependencies

.target(name: "example", dependencies: ["NabtoWebRTC", "NabtoWebRTCUtil"]),

Quick Start

Swift

import NabtoWebRTC
import NabtoWebRTCUtil

// Options that control which camera to connect to
let productId = "..." // Initialize your productId
let deviceId = "..." // Initialize your deviceId
let sharedSecret = "..." // Initialize your sharedSecret

// Build the signaling client options
let options = SignalingClientOptions(
    productId: productId,
    deviceId: deviceId
)

// Create the signaling client and observer
let client = createSignalingClient(options)
let observer = MyObserver()
let messageTransport: MessageTransport? = nil

do {
    messageTransport = try createClientMessageTransport(
        client: signalingClient,
        options: .sharedSecret(sharedSecret: sharedSecret)
    )
    messageTransport?.addObserver(observer)
    try client.start()
} catch {
    // Handle potential errors from starting the client
    print(error)
}

// Class that implements MessageTransportObserver
class MyObserver: MessageTransportObserver {
    func messageTransport(_ transport: any MessageTransport, didGet message: WebrtcSignalingMessage) {
        // Handle signaling messages here
    }

    func messageTransport(_ transport: any MessageTransport, didError error: any Error) {
        // Handle potential errors here
    }

    func messageTransport(_ transport: any MessageTransport, didFinishSetup iceServers: [SignalingIceServer]) {
        // Create the RTCPeerConnection here
    }
}