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# System prepended metadata

title: Untitled

---

feed
| Property | Type | Description|
| -------- | -------- | -------- |
| ObejctId     | String     | unique id for the user post (default field)     |
|author|pointer to pointer|image author|
|image|file|image that user posts
caption|string|	image caption by author
createdAt|	DateTime|	date when post is created (default field)
likesCount| Number | number of likes that has been posted to an image



Signup
| Property | Type |Description |
| -------- | -------- | -------- |
| phoneNumber     | String     | A user's cell phone number     |
birthday|String|A user's date of birth
gender|String|User's gender


Matches

| Property | Type| Description|
| -------- | -------- | -------- |
| ObjectId | ObejctId     | User
| ObjectId | ObejctId     | Liked

^two columns of the same property user id


UserA    UserB

123      2
123      49
49       123
2        123
123      37

User 123 liked users 2,49,37
User 49  liked user 123

We do some kind of inner join queery to load mathces ?????????



