diff --git a/http2.d b/http2.d
index d6b7123..1b26096 100644
--- a/http2.d
+++ b/http2.d
@@ -4094,6 +4094,7 @@ class HttpApiClient() {
 	string urlBase;
 	string oauth2Token;
 	string submittedContentType;
+	string authType = "Bearer";
 
 	/++
 		Params:
@@ -4161,7 +4162,7 @@ class HttpApiClient() {
 		auto req = httpClient.navigateTo(u, requestMethod);
 
 		if(oauth2Token.length)
-			req.requestParameters.headers ~= "Authorization: Bearer " ~ oauth2Token;
+			req.requestParameters.headers ~= "Authorization: "~ authType ~" " ~ oauth2Token;
 		req.requestParameters.contentType = submittedContentType;
 		req.requestParameters.bodyData = bodyBytes;
 
@@ -4911,6 +4912,8 @@ class WebSocket {
 		while(d.length) {
 			auto r = socket.send(d);
 			if(r < 0 && wouldHaveBlocked()) {
+				// FIXME: i should register for a write wakeup
+				version(use_arsd_core) assert(0);
 				import core.thread;
 				Thread.sleep(1.msecs);
 				continue;
@@ -5365,6 +5368,59 @@ class WebSocket {
 
 	/* } end copy/paste */
 
+	// returns true if still active
+	private static bool readyToRead(WebSocket sock) {
+		sock.timeoutFromInactivity = MonoTime.currTime + sock.config.timeoutFromInactivity;
+		if(!sock.lowLevelReceive()) {
+			sock.readyState_ = CLOSED;
+
+			if(sock.onerror)
+				sock.onerror();
+
+			if(sock.onclose)
+				sock.onclose(CloseEvent(CloseEvent.StandardCloseCodes.abnormalClosure, "Connection lost", false, lastSocketError()));
+
+			unregisterActiveSocket(sock);
+			return false;
+		}
+		while(sock.processOnce().populated) {}
+		return true;
+	}
+
+	// returns true if still active, false if not
+	private static bool timeoutAndPingCheck(WebSocket sock, MonoTime now, Duration* minimumTimeoutForSelect) {
+		auto diff = sock.timeoutFromInactivity - now;
+		if(diff <= 0.msecs) {
+			// it timed out
+			if(sock.onerror)
+				sock.onerror();
+
+			if(sock.onclose)
+				sock.onclose(CloseEvent(CloseEvent.StandardCloseCodes.abnormalClosure, "Connection timed out", false, null));
+
+			sock.socket.close();
+			sock.readyState_ = CLOSED;
+			unregisterActiveSocket(sock);
+			return false;
+		}
+
+		if(minimumTimeoutForSelect && diff < *minimumTimeoutForSelect)
+			*minimumTimeoutForSelect = diff;
+
+		diff = sock.nextPing - now;
+
+		if(diff <= 0.msecs) {
+			//sock.send(`{"action": "ping"}`);
+			sock.ping();
+			sock.nextPing = now + sock.config.pingFrequency.msecs;
+		} else {
+			if(minimumTimeoutForSelect && diff < *minimumTimeoutForSelect)
+				*minimumTimeoutForSelect = diff;
+		}
+
+		return true;
+	}
+
 	/*
 	const int bufferedAmount // amount pending
 	const string extensions
@@ -5394,87 +5450,56 @@ class WebSocket {
 					loopExited = false; // reset it so we can reenter
 			}
 
-			static SocketSet readSet;
+			version(use_arsd_core) {
+				loopExited = false;
 
-			if(readSet is null)
-				readSet = new SocketSet();
+				import arsd.core;
+				getThisThreadEventLoop().run(() => WebSocket.activeSockets.length == 0 || loopExited || (localLoopExited !is null && *localLoopExited == true));
+			} else {
+				static SocketSet readSet;
 
-			loopExited = false;
+				if(readSet is null)
+					readSet = new SocketSet();
 
-			outermost: while(!loopExited && (localLoopExited is null || (*localLoopExited == false))) {
-				readSet.reset();
+				loopExited = false;
 
-				Duration timeout = 3.seconds;
+				outermost: while(!loopExited && (localLoopExited is null || (*localLoopExited == false))) {
+					readSet.reset();
 
-				auto now = MonoTime.currTime;
-				bool hadAny;
-				foreach(sock; activeSockets) {
-					auto diff = sock.timeoutFromInactivity - now;
-					if(diff <= 0.msecs) {
-						// timeout
-						if(sock.onerror)
-							sock.onerror();
+					Duration timeout = 3.seconds;
 
-						if(sock.onclose)
-							sock.onclose(CloseEvent(CloseEvent.StandardCloseCodes.abnormalClosure, "Connection timed out", false, null));
-
-						sock.socket.close();
-						sock.readyState_ = CLOSED;
-						unregisterActiveSocket(sock);
-						continue outermost;
-					}
-
-					if(diff < timeout)
-						timeout = diff;
-
-					diff = sock.nextPing - now;
-
-					if(diff <= 0.msecs) {
-						//sock.send(`{"action": "ping"}`);
-						sock.ping();
-						sock.nextPing = now + sock.config.pingFrequency.msecs;
-					} else {
-						if(diff < timeout)
-							timeout = diff;
-					}
-
-					readSet.add(sock.socket);
-					hadAny = true;
-				}
-
-				if(!hadAny) {
-					// import std.stdio; writeln("had none");
-					return;
-				}
-
-				tryAgain:
-					// import std.stdio; writeln(timeout);
-				auto selectGot = Socket.select(readSet, null, null, timeout);
-				if(selectGot == 0) { /* timeout */
-					// timeout
-					continue; // it will be handled at the top of the loop
-				} else if(selectGot == -1) { /* interrupted */
-					goto tryAgain;
-				} else {
+					auto now = MonoTime.currTime;
+					bool hadAny;
 					foreach(sock; activeSockets) {
-						if(readSet.isSet(sock.socket)) {
-							sock.timeoutFromInactivity = MonoTime.currTime + sock.config.timeoutFromInactivity;
-							if(!sock.lowLevelReceive()) {
-								sock.readyState_ = CLOSED;
+						if(!timeoutAndPingCheck(sock, now, &timeout))
+							continue outermost;
 
-								if(sock.onerror)
-									sock.onerror();
+						readSet.add(sock.socket);
+						hadAny = true;
+					}
 
-								if(sock.onclose)
-									sock.onclose(CloseEvent(CloseEvent.StandardCloseCodes.abnormalClosure, "Connection lost", false, lastSocketError()));
+					if(!hadAny) {
+						// import std.stdio; writeln("had none");
+						return;
+					}
 
-								unregisterActiveSocket(sock);
-								continue outermost;
+					tryAgain:
+						// import std.stdio; writeln(timeout);
+					auto selectGot = Socket.select(readSet, null, null, timeout);
+					if(selectGot == 0) { /* timeout */
+						// timeout
+						continue; // it will be handled at the top of the loop
+					} else if(selectGot == -1) { /* interrupted */
+						goto tryAgain;
+					} else {
+						foreach(sock; activeSockets) {
+							if(readSet.isSet(sock.socket)) {
+								if(!readyToRead(sock))
+									continue outermost;
+								selectGot--;
+								if(selectGot <= 0)
+									break;
 							}
-							while(sock.processOnce().populated) {}
-							selectGot--;
-							if(selectGot <= 0)
-								break;
 						}
 					}
 				}
@@ -5501,20 +5526,37 @@ class WebSocket {
 		void registerActiveSocket(WebSocket s) {
 			// ensure it isn't already there...
 			assert(s !is null);
-			foreach(i, a; activeSockets)
-				if(a is s)
-					return;
+			if(s.registered)
+				return;
+			s.activeSocketArrayIndex = activeSockets.length;
 			activeSockets ~= s;
+			s.registered = true;
+			version(use_arsd_core) {
+				s.unregisterToken = arsd.core.getThisThreadEventLoop().addCallbackOnFdReadable(s.socket.handle, new arsd.core.CallbackHelper(() { s.readyToRead(s); }));
+			}
 		}
 		void unregisterActiveSocket(WebSocket s) {
-			foreach(i, a; activeSockets)
-				if(s is a) {
-					activeSockets[i] = activeSockets[$-1];
-					activeSockets = activeSockets[0 .. $-1];
-					break;
-				}
+			version(use_arsd_core) {
+				s.unregisterToken.unregister();
+			}
+
+			auto i = s.activeSocketArrayIndex;
+			assert(activeSockets[i] is s);
+
+			activeSockets[i] = activeSockets[$-1];
+			activeSockets[i].activeSocketArrayIndex = i;
+			activeSockets = activeSockets[0 .. $-1];
+			activeSockets.assumeSafeAppend();
+			s.registered = false;
 		}
 	}
+
+	private bool registered;
+	private size_t activeSocketArrayIndex;
+	version(use_arsd_core) {
+		static import arsd.core;
+		arsd.core.ICoreEventLoop.UnregisterToken unregisterToken;
+	}
 }
 
 private template imported(string mod) {
@@ -5527,6 +5569,8 @@ private template imported(string mod) {
 template addToSimpledisplayEventLoop() {
 	import arsd.simpledisplay;
 	void addToSimpledisplayEventLoop(WebSocket ws, imported!"arsd.simpledisplay".SimpleWindow window) {
+		version(use_arsd_core)
+			return; // already done implicitly
 
 		version(Windows)
 		auto event = WSACreateEvent();