api handler.txt

//////////////DATABASE FUNCTION///////////////////

//users
signup (post/create users) = createUser, return value
login (post) = input, getUser, hash password, check if user exist, token 

--authorized--
//users
getUser (get/get users) = username from auth header, getUser 
updateUser (put/update users) = input, updateUser
addFollower
addFollowing
getFollowers
getFollowing
//////TODO : UPDATE username(pk) and affect that to foreign keys

//relationships
follow (post?)
unfollow (delete?)
GetRelations

//tweets
createTweets (post)
getTweets (get)


//////////////////////API FUNCTION////////////////
SignUp = Input, CreateUsers, return
Login = Input, GetUser, Check if user exists, compare password, create token, return user with token

GetProfile = GetUser by auth header, return
UpdateProfile = input updated value, GetUser by auth header, updateUser, return
GetFollowers = GetUser by auth header, init return value, getUser, loop the followers, return
GetFollowing = GetUser by auth header, init return value, getUser, loop the followings, return

Follow = input, check if account that want to follow exists, GetRelations (if exist, already follow, else ok), 
         createRelations, AddFollowing to follower_username, AddFollower to followed_username,
         increment following_count of follower_username, increment follower_count of followed_username,
         return
Unfollow = input, check if account that want to follow exists, GetRelations (if exist, oke, else not following), 
           DeleteRelations , DeleteFollowing from follower_username, DeleteFollower from followed_username,
           decrement following_count of follower_username, 
           decrement follower_count of followed_username,
           return

PostTweet = input, CreateTweet
DeleteTweet = input id tweets, deleteTweet
GetTweet 

//TODO :
GetFeed(Home Feature/MOST COMPLICATED)