URL: https://sarhan-blog.herokuapp.com
GET '/api/user/:id': Get User by Id
POST '/api/user' : Add new user
PUT '/api/user/:id': Update User by Id
DELETE '/api/user/:id': Delete User by Id
GET '/api/posts/' : Get all Posts
POST '/api/posts' : Add new Post
GET '/api/posts/:id': Get Post by Id
PUT '/api/posts/:id': Update Post by Id
DELETE '/api/posts/:id': Delete Post by Id
POST '/api/comments' : Add new Comment
DELETE '/api/comments/:id': Delete Comment by id