Option for WebSocket keepAliveInterval (#63)

Author: kblok

lib/PuppeteerSharp.Tests/TestConstants.cs

@@ -15,7 +15,8 @@ public static class TestConstants
             { "slowMo", Convert.ToInt32(Environment.GetEnvironmentVariable("SLOW_MO") ?? "0") },
             { "headless", Convert.ToBoolean(Environment.GetEnvironmentVariable("HEADLESS") ?? "true") },
             { "args", new[] { "--no-sandbox" }},
-            { "timeout", 0}
+            { "timeout", 0},
+            { "keepAliveInterval", 120}
         };
     }
 }

lib/PuppeteerSharp/Connection.cs

@@ -190,9 +190,10 @@ await Task.WhenAny(
         #endregion
         #region Static Methods
 
-        public static async Task<Connection> Create(string url, int delay = 0)
+        public static async Task<Connection> Create(string url, int delay = 0, int keepAliveInterval = 60)
         {
             var ws = new ClientWebSocket();
+            ws.Options.KeepAliveInterval = new TimeSpan(0, 0, keepAliveInterval);
             await ws.ConnectAsync(new Uri(url), default(CancellationToken)).ConfigureAwait(false);
             return new Connection(url, delay, ws);
         }

lib/PuppeteerSharp/Launcher.cs

@@ -125,8 +125,9 @@ internal async Task<Browser> LaunchAsync(Dictionary<string, object> options, int
                 var browserWSEndpoint = await WaitForEndpoint(_chromeProcess,
                                                               (int)(options.GetValueOrDefault("timeout") ?? 30 * 100),
                                                               options.ContainsKey("dumpio"));
+                var keepAliveInterval = options.ContainsKey("keepAliveInterval") ? Convert.ToInt32(options["keepAliveInterval"]) : 30;
 
-                _connection = await Connection.Create(browserWSEndpoint, connectionDelay);
+                _connection = await Connection.Create(browserWSEndpoint, connectionDelay, keepAliveInterval);
                 return await Browser.CreateAsync(_connection, options, KillChrome);
             }
             catch (Exception ex)