在dotnet core2.0和angular 2+中访问当前用户的下载文件夹

string downloadsFolderPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), "Downloads");

[Route("api/[controller]")]
[ApiController]
public class DownloadFolderController : ControllerBase
{
    [HttpGet]
    public ActionResult<string> GetDownloadFolderPath()
    {
        string downloadsFolderPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), "Downloads");
        return downloadsFolderPath;
    }
}

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';

@Injectable({
  providedIn: 'root'
})
export class DownloadFolderService {
  private apiUrl = '/api/downloadfolder';

  constructor(private http: HttpClient) { }

  getDownloadFolderPath(): Observable<string> {
    return this.http.get<string>(this.apiUrl);
  }
}

import { Component, OnInit } from '@angular/core';
import { DownloadFolderService } from './download-folder.service';

@Component({
  selector: 'app-download-folder',
  templateUrl: './download-folder.component.html',
  styleUrls: ['./download-folder.component.css']
})
export class DownloadFolderComponent implements OnInit {
  downloadFolderPath: string;

  constructor(private downloadFolderService: DownloadFolderService) { }

  ngOnInit(): void {
    this.downloadFolderService.getDownloadFolderPath().subscribe(
      (path: string) => {
        this.downloadFolderPath = path;
      },
      (error) => {
        console.error('Failed to get download folder path:', error);
      }
    );
  }
}

<p>Current user's download folder path: {{ downloadFolderPath }}</p>