No changes detected in diff

No code was added or removed in the provided diff; only context lines were present.

envelope-generator-ui/src/app/services/history.service.ts

@@ -0,0 +1,46 @@
+import { Injectable, inject } from '@angular/core';
+import { HttpClient, HttpParams } from '@angular/common/http';
+import { Observable, firstValueFrom } from 'rxjs';
+import { API_URL } from '../tokens/index';
+
+
+@Injectable({
+  providedIn: 'root'
+})
+export class HistoryService {
+  protected url: string;
+
+  constructor(private http: HttpClient) {
+    const api_url = inject(API_URL);
+    this.url = `${api_url}/history`;
+  }
+
+  public getHistory(options?: Options): Observable<any> {
+    let params = new HttpParams();
+    if (options) {
+      if (options.envelopeId)
+        params = params.set('envelopeId', options.envelopeId);
+      if (options.referenceType != null)
+        params = params.set('referenceType', options.referenceType);
+      if (options.userReference)
+        params = params.set('userReference', options.userReference);
+      if (options.withReceiver)
+        params = params.set('withReceiver', options.withReceiver);
+      if (options.withSender)
+        params = params.set('withSender', options.withSender);
+    }
+    return this.http.get(this.url, { params });
+  }
+
+  public async getHistoryAsync(options?: Options): Promise<any> {
+    return firstValueFrom(this.getHistory(options));
+  }
+}
+
+class Options {
+  envelopeId?: number;
+  userReference?: string;
+  referenceType: number | null = null;
+  withSender?: boolean;
+  withReceiver?: boolean;
+}