startobservers.ts

class PostsReaderComponent {
    ngOnInit() {
        const disposer = startObservers(null, "PostsReader.", [
            [
                "Loading",
                () => {
                    this.loading = this.postsService.getPost(this.docId) != null
                }
            ],
            [
                "Data",
                () => {
                    this.postData = this.postService.getPostAndAuthor(this.docId)
                }
            ]
        ]);
        addComponentDisposer(this, disposer);
    }
    ngOnDestroy() {
        stopObserving(this);
    }
}