post '/insert_users/' do
conn = TinyTds::Client.new(...)
username = params[:username]
password = params[:password]
phone_number = params[:phone_number]
profile_state = params[:profile_state]
clasa = params[:clasa]
sql = "insert into ServerUsers(Username, Passwords,Phone_Number, Profile_State, Class) values('username, password, phone_number, profile_state, clasa')"
cursor = conn.execute(sql)
end