async def get_content(author: str, permlink: str):
"""Get a single post object."""
valid_account(author)
valid_permlink(permlink)
post_id = get_post_id(author, permlink)
if not post_id:
return {'id': 0, 'author': '', 'permlink': ''}
return load_posts([post_id])[0]
async def get_content_replies(parent: str, parent_permlink: str):
"""Get a list of post objects based on parent."""
valid_account(parent)
valid_permlink(parent_permlink)
parent_id = get_post_id(parent, parent_permlink)
if parent_id:
child_ids = get_child_ids(parent_id)
if child_ids:
return load_posts(child_ids)
return []
def _load_discussion(author, permlink):
"""Load a full discussion thread."""
post_id = get_post_id(author, permlink)
if not post_id:
return {}
ret = []
queue = load_posts([post_id])
while queue:
parent = queue.pop()
children = load_posts(get_child_ids(parent['post_id']))
parent['replies'] = list(map(_ref, children))
queue.extend(children)
ret.append(parent)
return {_ref(post): post for post in ret}
async def get_state(path: str):
"""`get_state` reimplementation.
See: https://github.com/steemit/steem/blob/06e67bd4aea73391123eca99e1a22a8612b0c47e/libraries/app/database_api.cpp#L1937
"""
(path, part) = _normalize_path(path)
state = {
'feed_price': _get_feed_price(),
'props': _get_props_lite(),
'tags': {},
'accounts': {},
'content': {},
'tag_idx': {
'trending': []
},
'discussion_idx': {
"": {}
}
}
# account - `/@account/tab` (feed, blog, comments, replies)
if part[0] and part[0][0] == '@':
assert not part[1] == 'transfers', 'transfers API not served here'
assert not part[1] == 'blog', 'canonical blog route is `/@account`'
assert not part[2], 'unexpected account path[2] %s' % path
account = valid_account(part[0][1:])
state['accounts'][account] = _load_account(account)
if part[1] not in ACCOUNT_TAB_IGNORE:
assert part[1] in ACCOUNT_TAB_KEYS, "invalid acct path %s" % path
key = ACCOUNT_TAB_KEYS[part[1]]
posts = await _get_account_discussion_by_key(account, key)
state['content'] = _keyed_posts(posts)
state['accounts'][account][key] = list(state['content'].keys())
# discussion - `/category/@account/permlink`
elif part[1] and part[1][0] == '@':
author = valid_account(part[1][1:])
permlink = valid_permlink(part[2])
post_id = get_post_id(author, permlink)
state['content'] = _load_posts_recursive([post_id]) if post_id else {}
state['accounts'] = _load_content_accounts(state['content'])
# ranked posts - `/sort/category`
elif part[0] in ['trending', 'promoted', 'hot', 'created']:
assert not part[2], "unexpected discussion path part[2] %s" % path
sort = valid_sort(part[0])
tag = valid_tag(part[1].lower(), allow_empty=True)
posts = load_posts(cursor.pids_by_query(sort, '', '', 20, tag))
state['content'] = _keyed_posts(posts)
state['discussion_idx'] = {tag: {sort: list(state['content'].keys())}}
state['tag_idx'] = {'trending': await get_top_trending_tags_summary()}
# tag "explorer" - `/tags`
elif part[0] == "tags":
assert not part[1] and not part[2], 'invalid /tags request'
for tag in await get_trending_tags():
state['tag_idx']['trending'].append(tag['name'])
state['tags'][tag['name']] = tag
elif part[0] == 'witnesses' or part[0] == '~witnesses':
assert not part[1] and not part[2]
raise Exception("not implemented: /%s" % path)
elif part[0] in CONDENSER_NOOP_URLS:
assert not part[1] and not part[2]
else:
print('unhandled path /%s' % path)
return state