I am trying to integrate both Bookly and WP Job Manager into my app as well, to no success unfortunately.
I didn’t manage to even convert WP Job Manager into readable JSON.
However, it looks like you are using devdactic’s tutorial for the REST API? If so, the main issue is you are calling a post excerpt from the provider. What you need to do is pull the whole content from the specific post you have placed the plugin shortcode into and display that. Rather than using
getList (which pulls a list of posts), you need to pull the content of a post/page using
get(postId, options?: RequestOptionsArgs): Observable<Response>;
Please see the Git repository here which explains a lot: https://github.com/wordpress-clients/wp-api-angular
Incidentally, I already tried to do this and the result was…well…here’s a picture!