diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index fb65724..e7874d9 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,8 +4,6 @@
     <list default="true" id="2dc093a7-8382-4e31-b457-ce6c9fd10d13" name="Default Changelist" comment="">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/README.md" beforeDir="false" afterPath="$PROJECT_DIR$/README.md" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/controller/ProductController.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/controller/ProductController.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java" afterDir="false" />
     </list>
     <ignored path="$PROJECT_DIR$/target/" />
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
@@ -75,6 +73,29 @@
         <item name="tables" type="d4e8921:DatabaseStructure$FamilyGroup" />
         <item name="product: table" type="69fad909:PgImplModel$LocalTable" />
       </path>
+      <path>
+        <item name="Database" type="3277223f:DatabaseStructure$DbRootGroup" />
+        <item name="heroku" type="feb32156:DbDataSourceImpl" />
+        <item name="databases" type="d4e8921:DatabaseStructure$FamilyGroup" />
+        <item name="d3e1jrm08qe91q: database" type="162271b6:PgImplModel$Database" />
+        <item name="schemas" type="d4e8921:DatabaseStructure$FamilyGroup" />
+        <item name="public: schema" type="983ebcf7:PgImplModel$Schema" />
+        <item name="sequences" type="d4e8921:DatabaseStructure$FamilyGroup" />
+      </path>
+      <path>
+        <item name="Database" type="3277223f:DatabaseStructure$DbRootGroup" />
+        <item name="heroku" type="feb32156:DbDataSourceImpl" />
+        <item name="databases" type="d4e8921:DatabaseStructure$FamilyGroup" />
+        <item name="d3e1jrm08qe91q: database" type="162271b6:PgImplModel$Database" />
+        <item name="access methods" type="d4e8921:DatabaseStructure$FamilyGroup" />
+      </path>
+      <path>
+        <item name="Database" type="3277223f:DatabaseStructure$DbRootGroup" />
+        <item name="heroku" type="feb32156:DbDataSourceImpl" />
+        <item name="databases" type="d4e8921:DatabaseStructure$FamilyGroup" />
+        <item name="d3e1jrm08qe91q: database" type="162271b6:PgImplModel$Database" />
+        <item name="extensions" type="d4e8921:DatabaseStructure$FamilyGroup" />
+      </path>
     </expand>
     <select />
   </component>
@@ -83,8 +104,8 @@
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/controller/ProductController.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="627">
-              <caret line="81" column="37" lean-forward="true" selection-start-line="81" selection-start-column="37" selection-end-line="81" selection-end-column="37" />
+            <state relative-caret-position="192">
+              <caret line="88" selection-start-line="88" selection-end-line="88" />
               <folding>
                 <element signature="imports" expanded="true" />
               </folding>
@@ -93,19 +114,34 @@
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$APPLICATION_CONFIG_DIR$/consoles/db/4eb55351-864c-4d3f-b24d-048a158530c7/console.sql">
+        <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductService.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="229">
-              <caret line="59" lean-forward="true" selection-start-line="59" selection-end-line="59" />
+            <state relative-caret-position="345">
+              <caret line="23" selection-start-line="23" selection-end-line="23" />
+              <folding>
+                <element signature="imports" expanded="true" />
+              </folding>
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="456">
+              <caret line="123" lean-forward="true" selection-start-line="123" selection-end-line="123" />
+              <folding>
+                <element signature="imports" expanded="true" />
+              </folding>
             </state>
           </provider>
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java">
+        <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/validator/ProductValidator.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="333">
-              <caret line="80" column="19" selection-start-line="80" selection-start-column="19" selection-end-line="80" selection-end-column="19" />
+            <state relative-caret-position="426">
+              <caret line="38" column="16" selection-start-line="38" selection-start-column="16" selection-end-line="38" selection-end-column="16" />
               <folding>
                 <element signature="imports" expanded="true" />
               </folding>
@@ -116,8 +152,8 @@
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/model/Product.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="413">
-              <caret line="54" column="74" selection-start-line="54" selection-start-column="74" selection-end-line="54" selection-end-column="74" />
+            <state relative-caret-position="62">
+              <caret line="27" selection-start-line="27" selection-end-line="27" />
               <folding>
                 <element signature="imports" expanded="true" />
               </folding>
@@ -125,26 +161,11 @@
           </provider>
         </entry>
       </file>
-      <file pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/README.md">
-          <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
-            <state split_layout="SPLIT">
-              <first_editor relative-caret-position="114">
-                <caret line="182" column="7" selection-start-line="182" selection-start-column="7" selection-end-line="182" selection-end-column="7" />
-              </first_editor>
-              <second_editor />
-            </state>
-          </provider>
-        </entry>
-      </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/validator/ProductValidator.java">
+        <entry file="jar://$MAVEN_REPOSITORY$/org/springframework/spring-aop/5.1.4.RELEASE/spring-aop-5.1.4.RELEASE.jar!/org/springframework/aop/framework/JdkDynamicAopProxy.class">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="295">
-              <caret line="31" column="40" selection-start-line="31" selection-start-column="40" selection-end-line="31" selection-end-column="40" />
-              <folding>
-                <element signature="imports" expanded="true" />
-              </folding>
+            <state relative-caret-position="178">
+              <caret line="84" selection-start-line="84" selection-end-line="84" />
             </state>
           </provider>
         </entry>
@@ -154,15 +175,19 @@
   <component name="FileTemplateManagerImpl">
     <option name="RECENT_TEMPLATES">
       <list>
-        <option value="Class" />
         <option value="Interface" />
+        <option value="Class" />
       </list>
     </option>
   </component>
   <component name="FindInProjectRecents">
     <findStrings>
       <find>asc</find>
+      <find>Object</find>
     </findStrings>
+    <replaceStrings>
+      <replace>T</replace>
+    </replaceStrings>
   </component>
   <component name="Git.Settings">
     <option name="ROOT_SYNC" value="SYNC" />
@@ -186,13 +211,14 @@
         <option value="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/repository/ProductRepository.java" />
         <option value="$PROJECT_DIR$/src/main/resources/application.properties" />
         <option value="$APPLICATION_CONFIG_DIR$/consoles/db/4eb55351-864c-4d3f-b24d-048a158530c7/console.sql" />
-        <option value="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductService.java" />
         <option value="$PROJECT_DIR$/pom.xml" />
         <option value="$PROJECT_DIR$/.gitignore" />
         <option value="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/validator/ProductValidator.java" />
-        <option value="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/model/Product.java" />
-        <option value="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java" />
+        <option value="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductService.java" />
         <option value="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/controller/ProductController.java" />
+        <option value="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/repository/CrudRepositoryImpl.java" />
+        <option value="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java" />
+        <option value="$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/model/Product.java" />
         <option value="$PROJECT_DIR$/README.md" />
       </list>
     </option>
@@ -233,7 +259,6 @@
       <foldersAlwaysOnTop value="true" />
     </navigator>
     <panes>
-      <pane id="Scope" />
       <pane id="PackagesPane" />
       <pane id="ProjectPane">
         <subPane>
@@ -286,6 +311,24 @@
               <item name="sysmag" type="462c0819:PsiDirectoryNode" />
               <item name="model" type="462c0819:PsiDirectoryNode" />
             </path>
+            <path>
+              <item name="sysmag" type="b2602c69:ProjectViewProjectNode" />
+              <item name="sysmag" type="462c0819:PsiDirectoryNode" />
+              <item name="src" type="462c0819:PsiDirectoryNode" />
+              <item name="main" type="462c0819:PsiDirectoryNode" />
+              <item name="java" type="462c0819:PsiDirectoryNode" />
+              <item name="sysmag" type="462c0819:PsiDirectoryNode" />
+              <item name="repository" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="sysmag" type="b2602c69:ProjectViewProjectNode" />
+              <item name="sysmag" type="462c0819:PsiDirectoryNode" />
+              <item name="src" type="462c0819:PsiDirectoryNode" />
+              <item name="main" type="462c0819:PsiDirectoryNode" />
+              <item name="java" type="462c0819:PsiDirectoryNode" />
+              <item name="sysmag" type="462c0819:PsiDirectoryNode" />
+              <item name="service" type="462c0819:PsiDirectoryNode" />
+            </path>
             <path>
               <item name="sysmag" type="b2602c69:ProjectViewProjectNode" />
               <item name="sysmag" type="462c0819:PsiDirectoryNode" />
@@ -306,6 +349,7 @@
           <select />
         </subPane>
       </pane>
+      <pane id="Scope" />
     </panes>
   </component>
   <component name="PropertiesComponent">
@@ -391,7 +435,8 @@
       <updated>1547322958782</updated>
       <workItem from="1547322960420" duration="21872000" />
       <workItem from="1547401179909" duration="33384000" />
-      <workItem from="1548159944175" duration="9590000" />
+      <workItem from="1548159944175" duration="16987000" />
+      <workItem from="1548273577966" duration="2970000" />
     </task>
     <task id="LOCAL-00001" summary="added quantityChange validation, product validation, checking existing object in db, throwing exeption">
       <created>1548121370553</created>
@@ -456,11 +501,39 @@
       <option name="project" value="LOCAL" />
       <updated>1548177602799</updated>
     </task>
-    <option name="localTasksCounter" value="10" />
+    <task id="LOCAL-00010" summary="update readme.md">
+      <created>1548180172910</created>
+      <option name="number" value="00010" />
+      <option name="presentableId" value="LOCAL-00010" />
+      <option name="project" value="LOCAL" />
+      <updated>1548180172910</updated>
+    </task>
+    <task id="LOCAL-00011" summary="fix default page size in /get-all">
+      <created>1548184896657</created>
+      <option name="number" value="00011" />
+      <option name="presentableId" value="LOCAL-00011" />
+      <option name="project" value="LOCAL" />
+      <updated>1548184896657</updated>
+    </task>
+    <task id="LOCAL-00012" summary="fix readme">
+      <created>1548238865354</created>
+      <option name="number" value="00012" />
+      <option name="presentableId" value="LOCAL-00012" />
+      <option name="project" value="LOCAL" />
+      <updated>1548238865354</updated>
+    </task>
+    <task id="LOCAL-00013" summary="fix update product">
+      <created>1548276405635</created>
+      <option name="number" value="00013" />
+      <option name="presentableId" value="LOCAL-00013" />
+      <option name="project" value="LOCAL" />
+      <updated>1548276405635</updated>
+    </task>
+    <option name="localTasksCounter" value="14" />
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="64846000" />
+    <option name="totallyTimeSpent" value="75213000" />
   </component>
   <component name="TodoView">
     <todo-panel id="selected-file">
@@ -475,7 +548,7 @@
     <frame x="0" y="23" width="1680" height="1027" extended-state="6" />
     <editor active="true" />
     <layout>
-      <window_info content_ui="combo" id="Project" order="0" sideWeight="0.49810606" weight="0.18131869" />
+      <window_info content_ui="combo" id="Project" order="0" sideWeight="0.49810606" visible="true" weight="0.18131869" />
       <window_info id="Structure" order="1" side_tool="true" weight="0.25" />
       <window_info id="Designer" order="2" />
       <window_info id="UI Designer" order="3" />
@@ -484,18 +557,18 @@
       <window_info anchor="bottom" id="Message" order="0" />
       <window_info anchor="bottom" id="Find" order="1" sideWeight="0.498779" weight="0.32941177" />
       <window_info anchor="bottom" id="Run" order="2" sideWeight="0.498779" weight="0.3315508" />
-      <window_info anchor="bottom" id="Debug" order="3" weight="0.4" />
+      <window_info anchor="bottom" id="Debug" order="3" weight="0.46203208" />
       <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
       <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
       <window_info anchor="bottom" id="TODO" order="6" weight="0.32941177" />
       <window_info anchor="bottom" id="Spring" order="7" sideWeight="0.4993895" weight="0.32941177" />
-      <window_info anchor="bottom" id="Terminal" order="8" sideWeight="0.497558" weight="0.35187167" />
+      <window_info active="true" anchor="bottom" id="Terminal" order="8" sideWeight="0.497558" visible="true" weight="0.3657754" />
       <window_info anchor="bottom" id="Docker" order="9" show_stripe_button="false" />
       <window_info anchor="bottom" id="Event Log" order="10" sideWeight="0.502442" side_tool="true" weight="0.44919786" />
       <window_info anchor="bottom" id="Messages" order="11" weight="0.32941177" />
       <window_info anchor="bottom" id="Java Enterprise" order="12" />
       <window_info anchor="bottom" id="Database Changes" order="13" show_stripe_button="false" />
-      <window_info anchor="bottom" id="Version Control" order="14" sideWeight="0.498779" weight="0.32941177" />
+      <window_info anchor="bottom" id="Version Control" order="14" sideWeight="0.498779" weight="0.5197861" />
       <window_info anchor="bottom" id="SVN Repositories" order="15" weight="0.32941177" />
       <window_info anchor="bottom" id="Database Console" order="16" sideWeight="0.498779" weight="0.5893048" />
       <window_info anchor="right" id="Commander" order="0" weight="0.4" />
@@ -503,7 +576,7 @@
       <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
       <window_info anchor="right" id="Maven" order="3" weight="0.32967034" />
       <window_info anchor="right" id="Palette" order="4" />
-      <window_info anchor="right" id="Database" order="5" weight="0.6466165" />
+      <window_info anchor="right" id="Database" order="5" weight="0.4041514" />
       <window_info anchor="right" id="Palette&#9;" order="6" />
       <window_info anchor="right" id="Bean Validation" order="7" />
     </layout>
@@ -564,11 +637,27 @@
     <MESSAGE value="fix ignore" />
     <MESSAGE value="fix exists valid" />
     <MESSAGE value="fix changeQuantity" />
-    <option name="LAST_COMMIT_MESSAGE" value="fix changeQuantity" />
+    <MESSAGE value="update readme.md" />
+    <MESSAGE value="fix default page size in /get-all" />
+    <MESSAGE value="fix readme" />
+    <MESSAGE value="fix update product" />
+    <option name="LAST_COMMIT_MESSAGE" value="fix update product" />
     <option name="OPTIMIZE_IMPORTS_BEFORE_PROJECT_COMMIT" value="true" />
     <option name="REFORMAT_BEFORE_PROJECT_COMMIT" value="true" />
     <option name="REARRANGE_BEFORE_PROJECT_COMMIT" value="true" />
   </component>
+  <component name="XDebuggerManager">
+    <breakpoint-manager>
+      <breakpoints>
+        <line-breakpoint enabled="true" type="java-line">
+          <url>file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java</url>
+          <line>90</line>
+          <properties />
+          <option name="timeStamp" value="1" />
+        </line-breakpoint>
+      </breakpoints>
+    </breakpoint-manager>
+  </component>
   <component name="editorHistoryManager">
     <entry file="jar://$MAVEN_REPOSITORY$/org/springframework/boot/spring-boot-autoconfigure/2.1.2.RELEASE/spring-boot-autoconfigure-2.1.2.RELEASE.jar!/org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration.class">
       <provider selected="true" editor-type-id="text-editor">
@@ -638,16 +727,6 @@
     <entry file="file://$APPLICATION_CONFIG_DIR$/consoles/db/d0158af3-b28d-407c-b7c8-7331568f6f97/console.sql">
       <provider selected="true" editor-type-id="text-editor" />
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductService.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="300">
-          <caret line="20" column="43" selection-start-line="20" selection-start-column="43" selection-end-line="20" selection-end-column="43" />
-          <folding>
-            <element signature="imports" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/validationGroup/UpdateGroup.java">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="90">
@@ -679,13 +758,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$APPLICATION_CONFIG_DIR$/consoles/db/4eb55351-864c-4d3f-b24d-048a158530c7/console.sql">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="229">
-          <caret line="59" lean-forward="true" selection-start-line="59" selection-end-line="59" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/validator/QuantityChangeValidator.java">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="315">
@@ -703,10 +775,51 @@
         </state>
       </provider>
     </entry>
+    <entry file="jar://$MAVEN_REPOSITORY$/org/springframework/data/spring-data-commons/2.1.4.RELEASE/spring-data-commons-2.1.4.RELEASE.jar!/org/springframework/data/domain/Pageable.class">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="285">
+          <caret line="29" column="14" selection-start-line="29" selection-start-column="14" selection-end-line="29" selection-end-column="14" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$APPLICATION_CONFIG_DIR$/consoles/db/4eb55351-864c-4d3f-b24d-048a158530c7/console.sql">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="470">
+          <caret line="59" lean-forward="true" selection-start-line="59" selection-end-line="59" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/README.md">
+      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
+        <state split_layout="SPLIT">
+          <first_editor relative-caret-position="321">
+            <caret line="114" column="26" selection-start-line="114" selection-start-column="26" selection-end-line="114" selection-end-column="26" />
+          </first_editor>
+          <second_editor />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/repository/CrudRepositoryImpl.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="90">
+          <caret line="6" column="31" selection-start-line="6" selection-start-column="31" selection-end-line="6" selection-end-column="31" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductService.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="345">
+          <caret line="23" selection-start-line="23" selection-end-line="23" />
+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/validator/ProductValidator.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="295">
-          <caret line="31" column="40" selection-start-line="31" selection-start-column="40" selection-end-line="31" selection-end-column="40" />
+        <state relative-caret-position="426">
+          <caret line="38" column="16" selection-start-line="38" selection-start-column="16" selection-end-line="38" selection-end-column="16" />
           <folding>
             <element signature="imports" expanded="true" />
           </folding>
@@ -715,18 +828,25 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/model/Product.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="413">
-          <caret line="54" column="74" selection-start-line="54" selection-start-column="74" selection-end-line="54" selection-end-column="74" />
+        <state relative-caret-position="62">
+          <caret line="27" selection-start-line="27" selection-end-line="27" />
           <folding>
             <element signature="imports" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
+    <entry file="jar://$MAVEN_REPOSITORY$/org/springframework/spring-aop/5.1.4.RELEASE/spring-aop-5.1.4.RELEASE.jar!/org/springframework/aop/framework/JdkDynamicAopProxy.class">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="178">
+          <caret line="84" selection-start-line="84" selection-end-line="84" />
+        </state>
+      </provider>
+    </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/controller/ProductController.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="627">
-          <caret line="81" column="37" lean-forward="true" selection-start-line="81" selection-start-column="37" selection-end-line="81" selection-end-column="37" />
+        <state relative-caret-position="192">
+          <caret line="88" selection-start-line="88" selection-end-line="88" />
           <folding>
             <element signature="imports" expanded="true" />
           </folding>
@@ -735,24 +855,14 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="333">
-          <caret line="80" column="19" selection-start-line="80" selection-start-column="19" selection-end-line="80" selection-end-column="19" />
+        <state relative-caret-position="456">
+          <caret line="123" lean-forward="true" selection-start-line="123" selection-end-line="123" />
           <folding>
             <element signature="imports" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/README.md">
-      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
-        <state split_layout="SPLIT">
-          <first_editor relative-caret-position="114">
-            <caret line="182" column="7" selection-start-line="182" selection-start-column="7" selection-end-line="182" selection-end-column="7" />
-          </first_editor>
-          <second_editor />
-        </state>
-      </provider>
-    </entry>
   </component>
   <component name="masterDetails">
     <states>
diff --git a/README.md b/README.md
index f1382a1..90b6cec 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,7 @@ Content-Type: application/json
 }
 ```
 
-Response `200` with ``JSON``:
+Response `200` with `JSON`:
 
 ```json
 {
@@ -74,7 +74,8 @@ Page start numbering on `page=0`. Default list is sorted by `id`.
 GET /api/get-all?page=0&size=1&sort=id
 Content-Type: application/json
 ```
-Response ``200`` with ``JSON`` :
+Response `200` with `JSON`:
+
 
 ```json
 {
@@ -127,7 +128,7 @@ The service will handle `GET` request on `/api/get-price-of-all` returing `Float
 GET /api/get-price-of-all
 Content-Type: application/json
 ```
-Response `200` with ``JSON``:
+Response `200` with `JSON`:
 
 ```json
 {
@@ -180,11 +181,9 @@ Content-Type: application/json
 }
 
 ```
-```json
 
-Response: 200
+Response `200`:
 
-```
 * * *
 
 ### Get product with `id`
diff --git a/src/main/java/com/dino/scrum/sysmag/model/Product.java b/src/main/java/com/dino/scrum/sysmag/model/Product.java
index ba9b301..813f2d5 100644
--- a/src/main/java/com/dino/scrum/sysmag/model/Product.java
+++ b/src/main/java/com/dino/scrum/sysmag/model/Product.java
@@ -40,12 +40,12 @@ public class Product {
     @NotNull(message = "quantity cannot be null")
     @Min(value = 0, message = "quantity cannot be under 0")
     @Column(name = "quantity")
-    private long quantity;
+    private Long quantity;
 
     @NotNull(message = "quantityMax cannot be null")
     @Min(value = 1, message = "quantityMax cannot be under 1")
     @Column(name = "quantityMax")
-    private long quantityMax;
+    private Long quantityMax;
 
     @NotNull(message = "image_link cannot be null")
     @Column(name = "image_link")
diff --git a/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java b/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java
index 37fa85f..a14bb99 100644
--- a/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java
+++ b/src/main/java/com/dino/scrum/sysmag/service/ProductServiceImpl.java
@@ -93,16 +93,16 @@ public class ProductServiceImpl implements ProductService {
         if (productReceived.getName() != null)
             productToChange.setName(productReceived.getName());
 
-        if (productReceived.getName() != null)
+        if (productReceived.getPrice() != null)
             productToChange.setPrice(productReceived.getPrice());
 
-        if (productReceived.getName() != null)
+        if (productReceived.getQuantity() != null)
             productToChange.setQuantity(productReceived.getQuantity());
 
-        if (productReceived.getName() != null)
+        if (productReceived.getQuantityMax() != null)
             productToChange.setQuantityMax(productReceived.getQuantityMax());
 
-        if (productReceived.getName() != null)
+        if (productReceived.getImageLink() != null)
             productToChange.setImageLink(productReceived.getImageLink());
 
         productRepository.save(productToChange);
@@ -110,6 +110,7 @@ public class ProductServiceImpl implements ProductService {
         return productRepository.findById(productToChange.getId().longValue());
     }
 
+
     @Override
     public long count() {
         return productRepository.count();