import { HttpClient } from '@angular/common/http'; import { Injectable } from '@angular/core'; import { Observable } from 'rxjs'; import { History } from '../models/history'; @Injectable({ providedIn: 'root' }) export class HistoryService { private url = 'http://localhost:8080/api'; constructor(private http: HttpClient) {} getHistoryList(userId: number): Observable> { return this.http.get(`${this.url}/user/${userId}/history`); } }