http post request angular

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

@Injectable()
export class ConfigService {
  constructor(private http: HttpClient) { }
}

interface Article {
    id: number;
    title: string;
}
  
this.http.post<Article>('https://jsonplaceholder.typicode.com/posts', { title: 'Angular POST Request Example' }).subscribe(data => {
    this.postId = data.id;
})

http
  .get<MyJsonData>('/data.json', {observe: 'response'})
  .subscribe(resp => {
    // Here, resp is of type HttpResponse<MyJsonData>.
    // You can inspect its headers:
    console.log(resp.headers.get('X-Custom-Header'));
    // And access the body directly, which is typed as MyJsonData as requested.
    console.log(resp.body.someField);
  });