Hello there,
as a new Neo4j user, I'm here to ask you design advices for the following
scenario.
I would like to develop a mobile app with a social section that broadly
acts like Instagram, therefore a feed with my last friends activity, their
profile page, suggestions based on common interests and so on.
(please take a look at the sketch attached).
And here my questions:
1) While (User)-[FOLLOWS]->(User) relationship seams clear to me, with
(User)-[POSTS]->(Media) first doubts come. Is it correct to add a node for
every media a user will publish? Suppose 100-1000 pictures per user, it's
clear that Neo4j should manage a lot of connections from early stages and I
don't know if it's affordable in terms of required resources.
2) (User)-[LIKES]->(Media)
Because I red there isn't an atomic counter that safety let me store a
property in a Media node (example: {likes: 291}, I thought of this
solution. But again, I see an exponential growth of relations: what are
your considerations about this?
3) In my schema, I represented a user feed like a tree, attaching new media
to the last one with the [NEXT] relationship.
This way, when a user opens someone else profile, I can fetch for Media
with descending order and arbitrary limit for paginated results. Am I
correct or is there a best strategy?
Maybe I could consider a Media root node, storing the last user's activity:
this way I think it should be easier, from a user profile, querying for new
followed user's activities, ins't it?
Thanks in advance for any advice,
Alessandro
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