Allow connecting to the signaling server via URL

Author: mhamer-bw

Sources/BandwidthWebRTC/RTCBandwidth.swift

@@ -64,6 +64,20 @@ public class RTCBandwidth: NSObject {
         }
     }
 
+    /// Connect to the signaling server to start publishing media.
+    /// - Parameters:
+    ///   - url: Complete URL containing everything required to access WebRTC.
+    ///   - completion: The completion handler to call when the connect request is complete.
+    /// - Throws: Throw when a connection to the signaling server experiences an error.
+    public func connect(to url: URL, completion: @escaping () -> Void) throws {
+        signaling = Signaling()
+        signaling?.delegate = self
+        
+        try signaling?.connect(to: url) {
+            completion()
+        }
+    }
+    
     /// Disconnect from Bandwidth's WebRTC signaling server and remove all local connections.
     public func disconnect() {
         signaling?.disconnect()

Sources/BandwidthWebRTC/Signaling/Signaling.swift

@@ -27,7 +27,7 @@ protocol SignalingDelegate {
 
 class Signaling {
     private let client = Client()
-    
+        
     var delegate: SignalingDelegate?
 
     func connect(using token: String, completion: @escaping () -> Void) throws {
@@ -44,6 +44,12 @@ class Signaling {
             throw SignalingError.invalidWebSocketURL
         }
 
+        try connect(to: url) {
+            completion()
+        }
+    }
+    
+    func connect(to url: URL, completion: @escaping () -> Void) throws {
         try client.subscribe(to: SignalingMethod.endpointRemoved.rawValue, type: EndpointRemovedParameters.self)
         client.on(method: SignalingMethod.endpointRemoved.rawValue, type: EndpointRemovedParameters.self) { parameters in
             self.delegate?.signaling(self, didReceiveEndpointRemoved: parameters)