Keys auf SSE umgestellt

api/src/modules/realtime/sse/sse.service.ts

@@ -0,0 +1,22 @@
+import { Injectable,MessageEvent } from '@nestjs/common';
+import { Subject } from 'rxjs';
+import { Key } from 'src/model/entitites';
+
+@Injectable()
+export class SseService {
+  private clients = new Map<string, Subject<MessageEvent>>();
+
+  sendKeysToUsers(userId: string, keys: Key[]) {
+    try {
+      const sub = this.clients.get(userId);
+      if (!sub) { return; }
+      sub.next({ data: keys })
+    } catch {}
+  }
+
+  register(userId: string) {
+    const subj = new Subject<MessageEvent>();
+    this.clients.set(userId, subj);
+    return subj;
+  }
+}