POST /register

first_name => string last_name => string email => string password => string specialist => string

POST /login

email => string password => string

POST /news

news_title => string news_body -> string author_id=> Int category_id=> Int lang_id=> Int

POST /categories

languag_id => Int categorie_name => string

PUT /categories

categorie_id => int categorie_name => string

DELETE /categories

category_id => int

DELETE /news

news_id => int

PUT /news

news_id => int news_title => string news_body => string news_author => int option => true