android - How to integrate news article / comments with Firebase? -

i've been trying create app follows these 3 steps:

1. register via facebook
2. create new user in firebase database
3. allow registered users see news articles , comment

i stuck on #3. i'm not sure efficient, want post articles on site such wordpress or whatever , parse json app. however, not know how implement comments.

you have, in firebase realtime db, structure like:

[root]         -[article_urls]         -[comments]             -[comment_id]                 -[content]->value                 -[user_id]->value 

etc. interesting bit of firebase database documentation be:

• best practice firebase database: ie, keep data flat
• how add data list in firebase database: when add new comment article adding list