toSignal via Gemini

bookie/src/app/printers/printer.service.ts

@@ -1,5 +1,5 @@
-import { HttpClient, HttpHeaders } from '@angular/common/http';
-import { Injectable, inject } from '@angular/core';
+import { HttpClient, HttpHeaders, httpResource, HttpResourceRef } from '@angular/common/http';
+import { Injectable, Signal, inject } from '@angular/core';
 import { Observable } from 'rxjs';
 import { catchError } from 'rxjs/operators';
 
@@ -19,17 +19,15 @@ export class PrinterService {
   private http = inject(HttpClient);
   private log = inject(ErrorLoggerService);
 
-  get(id: string | null): Observable<Printer> {
-    const getUrl: string = id === null ? url : `${url}/${id}`;
-    return this.http
-      .get<Printer>(getUrl)
-      .pipe(catchError(this.log.handleError(serviceName, `get id=${id}`))) as Observable<Printer>;
+  get(id: Signal<string | null> | string | null): HttpResourceRef<Printer | undefined> {
+    return httpResource<Printer>(() => {
+      const idVal = typeof id === 'function' ? id() : id;
+      return idVal === null || idVal === undefined ? url : `${url}/${idVal}`;
+    });
   }
 
-  list(): Observable<Printer[]> {
-    return this.http
-      .get<Printer[]>(`${url}/list`)
-      .pipe(catchError(this.log.handleError(serviceName, 'list'))) as Observable<Printer[]>;
+  list(): HttpResourceRef<Printer[] | undefined> {
+    return httpResource<Printer[]>(() => `${url}/list`);
   }
 
   save(printer: Printer): Observable<Printer> {