start stubbing out endpoints

app/util.py

@@ -0,0 +1,16 @@
+from flask import url_for
+from .models import Posts, Threads
+
+def get_post_url(post_id, _anchor=False, external=False):
+    post = Posts.find({'id': post_id})
+    if not post:
+        return ''
+
+    thread = Threads.find({'id': post.thread_id})
+
+    anchor = None if not _anchor else f'post-{post_id}'
+
+    return url_for('threads.thread', slug=thread.slug, after=post_id, _external=external, _anchor=anchor)
+
+def dict_to_query_string(d) -> str:
+    return '?' + '&'.join([f'{key}={str(value)}' for key, value in d.items()])