Post Component

post.component.ts

@Component({...})
export class PostComponent implements OnInit {

    post: Post;

    constructor(
        @Inject(BlogService) private blogService: BlogService,
        @Inject(ActivatedRoute) private activatedRoute: ActivatedRoute
    ) { }

    ngOnInit(): void {
        this.activatedRoute.params.forEach((params: Params) => {
            const id: number = +params["id"];
            this.blogService
                .getPost(id)
                .then(data => this.post = new Post(data));
        });
    }
}