Read employee from database                                                         
                                                                                                                                                                                                             
                                                                                                                                                                                                             
                                                                                                                                                                                                             
                                                                                                                                                                                                             
                          Write to queue>                                                                                                                                                                    
                                                                                                                                                                                                             
                          repeat while (Has more employees) is (yes) not (no)                                                                                                                                
                          stop                                                                                                                                                                               
                           Export PDF                                                                                                                                                                        
                                                                                                                                                                                                             
                          :Read from queue<                                                                                                                                                                  
                          :Generate PDF                                                                                                                                                                      
                                                                                                                                                                                                             
                                                                                                                                                                                                             
                                                                                                                                                                                                             
                                                                                                                                                                                                             
                                                                                                                                                             Write to queue>                                 
                                                                                                                                                             stop                                            
                                                                                                                                                                                                             
                                                                                                                                                              Send email                                     
                                                                                                                                                             :Read from queue<                               
                                                                                                                                                                                                             
                                                                                                                                                             :Generate email                                 
                                                                                                                                                                                                             
                                                                                                                                                                                                             
                                                                                                                                                                                                             
                                                                                                                                                                                                             
                                                                                                                                                                                            Call SendGrid API