How do I get the header image for a post?

[DaleEMoore]

Howdy all y'all,

I'm trying to find and display a post's header image.

Is this a good place to look for it?

	posts, resp, err = cl.Subreddit.TopPosts(ctx, subreddit, &reddit.ListPostOptions{
		ListOptions: reddit.ListOptions{
			Limit: maxRedditItems,
			After: respAfter,
		},
		Time: "all",
	})

	var thePosts []*reddit.Post = nil
	for _, post := range posts {
		lastByByte := strings.ToLower(post.URL[len(post.URL)-4:])
		if (lastByByte == ".jpg") || (lastByByte == ".png") {
			log.Println("URL is an image:", post.URL)
		} else {
			log.Println("URL is NOT an image:", post.URL)
		}
		thePosts = append(thePosts, post)
	}

Thanks for any help!
Dale

[DaleEMoore]

Is it a good assumption on my part to use:

log.Println("URL is an image:", post.URL)

as the post's image?