guid

src/app/interceptors/api-headers.interceptor.ts

@@ -19,6 +19,25 @@ const REGION_HEADER_MAP: Record<string, string> = {
   'yerevan': 'Yerevan',
 };
 
+const SESSION_STORAGE_KEY = 'web_session_id';
+
+/** Generate a 32-char hex string (GUID without dashes) */
+function generateSessionId(): string {
+  const bytes = new Uint8Array(16);
+  crypto.getRandomValues(bytes);
+  return Array.from(bytes, b => b.toString(16).padStart(2, '0')).join('');
+}
+
+/** Get or create a persistent anonymous session ID */
+function getAnonymousSessionId(): string {
+  let id = localStorage.getItem(SESSION_STORAGE_KEY);
+  if (!id || id.length !== 32) {
+    id = generateSessionId();
+    localStorage.setItem(SESSION_STORAGE_KEY, id);
+  }
+  return id;
+}
+
 export const apiHeadersInterceptor: HttpInterceptorFn = (req, next) => {
   if (!req.url.startsWith(environment.apiUrl)) {
     return next(req);
@@ -42,9 +61,7 @@ export const apiHeadersInterceptor: HttpInterceptorFn = (req, next) => {
     headers = headers.set('X-Language', LANG_HEADER_MAP[lang] ?? lang.toUpperCase());
   }
   headers = headers.set('Currency', currency || 'RUB');
-  if (session?.sessionId) {
+  headers = headers.set('WebSessionID', session?.sessionId || getAnonymousSessionId());
-    headers = headers.set('WebSessionID', session.sessionId);
-  }
 
   return next(req.clone({ headers }));
 };