angular 6 ionic让http put请求在有限的数据中搜索id

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

@Injectable({
  providedIn: 'root'
})
export class DataService {
  private data = [
    { id: 1, name: 'Item 1' },
    { id: 2, name: 'Item 2' },
    // ...更多数据
  ];

  constructor(private http: HttpClient) {}

  updateItem(id: number, newData: any): Promise<any> {
    const itemIndex = this.data.findIndex(item => item.id === id);
    if (itemIndex === -1) {
      return Promise.reject('Item not found');
    }

    this.data[itemIndex] = { ...this.data[itemIndex], ...newData };

    // 模拟HTTP PUT请求
    return this.http.put(`/api/items/${id}`, newData).toPromise()
      .then(() => {
        console.log('Item updated successfully');
        return this.data[itemIndex];
      })
      .catch(error => {
        console.error('Error updating item', error);
        throw error;
      });
  }
}