使用rest api将数据输入到数据库（登录）

Question

我有一个 API 试图检查用户是否在数据库中。但是，我不确定如何将输入中的数据发布到我的 API 以允许用户登录。

HTML 登录页面

  <ion-item class='ion-padding'>

    <ion-label position="floating">Username (Email)</ion-label>

    <ion-input type='text'name="email" #email [(ngModel)]="email"></ion-input>

  </ion-item>

  <ion-item class='ion-padding'>

    <ion-label position="floating">Password</ion-label>

    <ion-input type='password'  name="password" #password [(ngModel)]="password"></ion-input>

  </ion-item>

   <router-outlet></router-outlet>

</ion-content>

</ion-app>

登录.ts

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

import { NavController, AlertController, LoadingController } from '@ionic/angular';

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

@Component({

  selector: 'app-login',

  templateUrl: 'login.page.html',

})

export class HomePage {

  username = '';

  password = '';

  constructor(

    public navCtrl: NavController, public alertCtrl: AlertController,

    private http: HttpClient,

    private httpH: HttpHeaders,

    public loading: LoadingController) { }

  }