Merge 5874cf80f5 into 860e6390f1

src/app/(main)/websites/[websiteId]/sessions/SessionsDataTable.tsx

@@ -1,8 +1,9 @@
 import { DataGrid } from '@/components/common/DataGrid';
-import { useWebsiteSessionsQuery } from '@/components/hooks';
+import { useSessionStream, useWebsiteSessionsQuery } from '@/components/hooks';
 import { SessionsTable } from './SessionsTable';
 
 export function SessionsDataTable({ websiteId }: { websiteId?: string; teamId?: string }) {
+  useSessionStream(websiteId);
   const queryResult = useWebsiteSessionsQuery(websiteId);
 
   return (

src/app/api/send/route.ts

@@ -12,6 +12,7 @@ import { parseRequest } from '@/lib/request';
 import { badRequest, forbidden, json, serverError } from '@/lib/response';
 import { anyObjectParam, urlOrPathParam } from '@/lib/schema';
 import { safeDecodeURI, safeDecodeURIComponent } from '@/lib/url';
+import { emitSessionCreated } from '@/lib/session-events';
 import { createSession, saveEvent, saveSessionData } from '@/queries/sql';
 
 interface Cache {
@@ -151,6 +152,7 @@ export async function POST(request: Request) {
         distinctId: id,
         createdAt,
       });
+      await emitSessionCreated(sourceId, sessionId);
     }
 
     // Visit info

src/app/api/websites/[websiteId]/sessions/stream/route.ts

@@ -0,0 +1,56 @@
+import { initializeRedisSubscriber, subscribeToSessions } from '@/lib/session-events';
+import { parseRequest } from '@/lib/request';
+import { unauthorized } from '@/lib/response';
+import { canViewWebsite } from '@/permissions';
+
+const HEARTBEAT_INTERVAL = 30000;
+
+export async function GET(
+  request: Request,
+  { params }: { params: Promise<{ websiteId: string }> },
+) {
+  const { auth, error } = await parseRequest(request);
+
+  if (error) {
+    return error();
+  }
+
+  const { websiteId } = await params;
+
+  if (!(await canViewWebsite(auth, websiteId))) {
+    return unauthorized();
+  }
+
+  await initializeRedisSubscriber();
+
+  const stream = new ReadableStream({
+    start(controller) {
+      const encoder = new TextEncoder();
+      let heartbeatTimer: ReturnType<typeof setInterval> | null = null;
+
+      const unsubscribe = subscribeToSessions(websiteId, (_, sessionId) => {
+        controller.enqueue(encoder.encode(`data: ${JSON.stringify({ sessionId })}\n\n`));
+      });
+
+      heartbeatTimer = setInterval(() => {
+        controller.enqueue(encoder.encode(': heartbeat\n\n'));
+      }, HEARTBEAT_INTERVAL);
+
+      request.signal.addEventListener('abort', () => {
+        if (heartbeatTimer) {
+          clearInterval(heartbeatTimer);
+        }
+        unsubscribe();
+        controller.close();
+      });
+    },
+  });
+
+  return new Response(stream, {
+    headers: {
+      'Content-Type': 'text/event-stream',
+      'Cache-Control': 'no-cache',
+      Connection: 'keep-alive',
+    },
+  });
+}

src/components/common/LoadingPanel.tsx

@@ -28,9 +28,11 @@ export function LoadingPanel({
   ...props
 }: LoadingPanelProps): ReactNode {
   const empty = isEmpty ?? checkEmpty(data);
+  const hasData = data && !empty;
 
-  // Show loading spinner only if no data exists
-  if (isLoading || isFetching) {
+  // Show loading only on initial load when no data exists yet
+  // Don't show loading during background refetches when we already have data
+  if ((isLoading || isFetching) && !hasData) {
     return (
       <Column position="relative" height="100%" width="100%" {...props}>
         <Loading icon={loadingIcon} placement={loadingPlacement} />
@@ -48,8 +50,8 @@ export function LoadingPanel({
     return renderEmpty();
   }
 
-  // Show main content when data exists
-  if (!isLoading && !isFetching && !error && !empty) {
+  // Show content when we have data (even during background refetch)
+  if (hasData) {
     return children;
   }
 

src/components/hooks/index.ts

@@ -79,6 +79,7 @@ export * from './useNavigation';
 export * from './usePagedQuery';
 export * from './usePageParameters';
 export * from './useRegionNames';
+export * from './useSessionStream';
 export * from './useSlug';
 export * from './useSticky';
 export * from './useTimezone';

src/components/hooks/useSessionStream.ts

@@ -0,0 +1,61 @@
+import { useEffect, useRef } from 'react';
+import { useQueryClient } from '@tanstack/react-query';
+
+const MAX_RETRY_DELAY = 30000;
+const INITIAL_RETRY_DELAY = 1000;
+
+export function useSessionStream(websiteId?: string) {
+  const queryClient = useQueryClient();
+  const retryCountRef = useRef(0);
+  const retryTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+
+  useEffect(() => {
+    if (!websiteId) return;
+
+    let eventSource: EventSource | null = null;
+    let isMounted = true;
+
+    const connect = () => {
+      if (!isMounted) return;
+
+      eventSource = new EventSource(`/api/websites/${websiteId}/sessions/stream`);
+
+      eventSource.onmessage = event => {
+        try {
+          const data = JSON.parse(event.data);
+          if (data.sessionId) {
+            retryCountRef.current = 0;
+            queryClient.invalidateQueries({ queryKey: ['sessions', { websiteId }] });
+          }
+        } catch (error) {
+          // eslint-disable-next-line no-console
+          console.error('Failed to parse session event:', error);
+        }
+      };
+
+      eventSource.onerror = () => {
+        eventSource?.close();
+
+        if (!isMounted) return;
+
+        const delay = Math.min(
+          INITIAL_RETRY_DELAY * Math.pow(2, retryCountRef.current),
+          MAX_RETRY_DELAY,
+        );
+        retryCountRef.current += 1;
+
+        retryTimeoutRef.current = setTimeout(connect, delay);
+      };
+    };
+
+    connect();
+
+    return () => {
+      isMounted = false;
+      if (retryTimeoutRef.current) {
+        clearTimeout(retryTimeoutRef.current);
+      }
+      eventSource?.close();
+    };
+  }, [websiteId, queryClient]);
+}

src/lib/session-events.ts

@@ -0,0 +1,53 @@
+import redis from './redis';
+
+type SessionListener = (websiteId: string, sessionId: string) => void;
+
+const listeners = new Map<string, Set<SessionListener>>();
+const REDIS_CHANNEL = 'umami:session:created';
+
+export function subscribeToSessions(websiteId: string, callback: SessionListener) {
+  if (!listeners.has(websiteId)) {
+    listeners.set(websiteId, new Set());
+  }
+
+  const websiteListeners = listeners.get(websiteId)!;
+  websiteListeners.add(callback);
+
+  return () => {
+    websiteListeners.delete(callback);
+    if (websiteListeners.size === 0) {
+      listeners.delete(websiteId);
+    }
+  };
+}
+
+export async function emitSessionCreated(websiteId: string, sessionId: string) {
+  const message = JSON.stringify({ websiteId, sessionId });
+
+  if (redis.enabled) {
+    await redis.client.publish(REDIS_CHANNEL, message);
+  }
+
+  listeners.get(websiteId)?.forEach(cb => cb(websiteId, sessionId));
+}
+
+let redisSubscriber: any = null;
+
+export async function initializeRedisSubscriber() {
+  if (!redis.enabled || redisSubscriber) {
+    return;
+  }
+
+  redisSubscriber = redis.client.duplicate();
+  await redisSubscriber.connect();
+
+  await redisSubscriber.subscribe(REDIS_CHANNEL, (message: string) => {
+    try {
+      const { websiteId, sessionId } = JSON.parse(message);
+      listeners.get(websiteId)?.forEach(cb => cb(websiteId, sessionId));
+    } catch (error) {
+      // eslint-disable-next-line no-console
+      console.error('Failed to parse session event:', error);
+    }
+  });
+}