How to pass parameters from service to controller?

Question

Angular

Implemented a service for adding and receiving data from a table. After adding an entry to the table, you need to organize the transfer of a parameter from the service to the controller. This parameter will signal to the controller that the data was successfully added, and accordingly the controller can push. If not the right one I propose a solution, then tell me how to implement it correctly?
service.dataByCommands.js:

(function(){
   'use strict';

    angular
        .module('service.dataByCommands',[])
        .factory('serviceDataByCommands', serviceDataByCommands);

        function serviceDataByCommands($http) {

            var _vm;
            
            return {
                name: 'Commands Service',
                add: function (vm) {
                    
                    _vm = vm;
                    
                    $http.post('addData.php',{genCommand:vm.newGenerationCommand, description:vm.newDescription})
                        .then(function(response) {

                            RETURN ('SUCCESS');
                            
                        })
                        .catch(function(error) {
                            console.log(error);
                        });                    
                    
                },
                get: function (callback) {
                        $http.get('getData.php')
                            .then(function(response) {
                                callback(response.data);
                            },
                            function(error) {
                                console.log(error);
                            });
                }
            }
            
        }
        
})();

controllers.js:

var vm = this;
.....

serviceDataByCommands.get(function(data){
     vm.lists = data;
});
        
vm.addCommand = function() {
    var status = serviceDataByCommands.add(vm);

    if (status === 'success'){

                            vm.notify('Данные успешно добавленны!');

                            vm.lists.push({
                                    id: response.data.id,
                                    command: response.data.command,
                                    description: response.data.description,
                                    completed: response.data.completed
                            });

   }

};

.....

Answer 1

in service:

function serviceDataByCommands($http) {
            
            return {
                name: 'Commands Service',
                add: function (vm) {

                    return $http.post('addData.php',{genCommand:vm.newGenerationCommand, description:vm.newDescription});     
                        
                },
                ...........................

in controller:
vm.addCommand = function() {
serviceDataByCommands
.add(vm)
.then(function(response) {
vm.notify('success','Command "' + response.data[0].command + '" successful saved!');
vm.lists.push({
id: response.data[0].id,
command: response.data[0].command,
description: response.data[0].description,
completed: response.data [0].completed
});
})
.catch(function(error) {
console log(error);
});
};

Answer 2

Doing in the service

return  $http.get('getData.php')
                            .then(function(response) {
                                return response.data;
                            },
                            function(error) {
                                console.log(error);
                            });

and in the controller

var status = serviceDataByCommands.add(vm);
status.then(function(response){

    if (response=== 'success'){

                            vm.notify('Данные успешно добавленны!');

                            vm.lists.push({
                                    id: response.data.id,
                                    command: response.data.command,
                                    description: response.data.description,
                                    completed: response.data.completed
                            });

   }
})