Angular 2+ -如何在用户关闭浏览器窗口时进行API调用？

import { Component, HostListener } from '@angular/core';

@Component({
  selector: 'app-example',
  template: '...'
})
export class ExampleComponent {
  // ...
}

@HostListener('window:beforeunload', ['$event'])
onBeforeUnload(event: Event) {
  // 在这里进行API调用
}

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

constructor(private http: HttpClient) {}

onBeforeUnload(event: Event) {
  // 在这里进行API调用
  this.http.post('https://api.example.com/endpoint', { data: '...' }).subscribe(
    response => {
      // 处理API调用成功的逻辑
    },
    error => {
      // 处理API调用失败的逻辑
    }
  );
}

ngOnDestroy() {
  window.removeEventListener('beforeunload', this.onBeforeUnload);
}