diff --git a/web/app/common/api.js b/web/app/common/api.js
index 859c9155..b845cb1a 100644
--- a/web/app/common/api.js
+++ b/web/app/common/api.js
@@ -4,14 +4,24 @@ import fetcher from './fetcher'
 
 export const find = ({ url }) => fetcher.get(`/find?url=${url}&sort=time&format=tree`);
 
+export const getComment = ({ id }) => fetcher.get(`/id/${id}?url=${url}`);
+
 export const getUser = () => fetcher.get('/user');
 
-export const send = ({ text }) => fetcher.post('/comment', { text, locator: { site: siteId, url } });
+export const send = ({ text, pid }) => fetcher.post('/comment', {
+  text,
+  locator: {
+    site: siteId,
+    url
+  },
+  ...(pid ? { pid } : {}),
+});
 
 export const vote = ({ id, url, value }) => fetcher.put(`/vote/${id}?url=${url}&vote=${value}`);
 
 export default {
   find,
+  getComment,
   send,
   vote,
   getUser,