request

import { Component, OnInit } from "@angular/core";
import { ArticleService } from "./article.service";

@Component({
  selector: "app-article",
  templateUrl: "./article.component.html",
  styleUrls: ["./article.component.css"]
})
export class ArticleComponent implements OnInit {
  private articles: any;

  constructor(private articleService: ArticleService) {}

  ngOnInit() {
    articleService.getArticles().subscribe(
      articles => {
        this.articles = articles.lessons.data;
      },
      err => {
        console.log(err);
      }
    );
  }
}