diff --git a/pom.xml b/pom.xml
index 42468b1..6640418 100644
--- a/pom.xml
+++ b/pom.xml
@@ -92,6 +92,11 @@
 			<version>3.4.1</version>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>log4j</groupId>
+			<artifactId>log4j</artifactId>
+			<version>1.2.17</version>
+		</dependency>
     </dependencies>
 
 	<build>
diff --git a/src/main/java/com/apside/assistDbBackend/controller/InfoColumnController.java b/src/main/java/com/apside/assistDbBackend/controller/InfoColumnController.java
index 5166afa..ea49385 100644
--- a/src/main/java/com/apside/assistDbBackend/controller/InfoColumnController.java
+++ b/src/main/java/com/apside/assistDbBackend/controller/InfoColumnController.java
@@ -2,6 +2,7 @@ package com.apside.assistDbBackend.controller;
 
 import com.apside.assistDbBackend.model.InfoColumn;
 import com.apside.assistDbBackend.service.InfoColumnService;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
@@ -12,6 +13,7 @@ import java.util.Optional;
 
 @RestController
 @RequestMapping("/api")
+@Slf4j
 public class InfoColumnController {
     @Autowired
     private InfoColumnService infoColumnService;
@@ -23,6 +25,7 @@ public class InfoColumnController {
      */
     @GetMapping("/column/{id}")
     public InfoColumn getColumn(@PathVariable("id") final Long id) {
+        log.debug("Start GetColumn - Get Request - with id: " + id);
         Optional<InfoColumn> infoColumn = infoColumnService.getColumn(id);
         if(infoColumn.isPresent()) {
             return infoColumn.get();
@@ -37,6 +40,7 @@ public class InfoColumnController {
      */
     @GetMapping("/columns/all")
     public Iterable<InfoColumn> getColumns() {
+        log.debug("Start getColumns - Get Request");
         return infoColumnService.getAllColumns();
     }
 
@@ -46,16 +50,20 @@ public class InfoColumnController {
      */
     @GetMapping("/columns/{schema}/{table}")
     public Iterable<InfoColumn> getSelectedColumns(@PathVariable("schema") final String schema, @PathVariable("table") final String table) {
+        log.debug("Start GetSelectedColumns - Get Request - with schema: {}, table: {}", schema, table);
         return infoColumnService.getSelectedColumns(table, schema);
     }
 
     @GetMapping("/columns/{firstSchema}/{secondSchema}/{firstTable}/{secondTable}")
     public Iterable<InfoColumn> getColumnsForJoin(@PathVariable("firstTable") final String firstTable, @PathVariable("secondTable") final String secondTable, @PathVariable("firstSchema") final String firstSchema, @PathVariable("secondSchema") final String secondSchema) {
+        log.debug("Start GetColumnsForJoin - Get Request - with firstTable: {}, secondTable: {}, firstSchema: {}, secondSchema: {}", firstTable, secondTable, firstSchema, secondSchema);
+
         return infoColumnService.getColumnsForJoin(firstTable, secondTable, firstSchema, secondSchema);
     }
 
     @GetMapping("/columns/joins")
     public Iterable<InfoColumn> getColumnsForJoinTwo(@RequestParam("tables") String tables, @RequestParam("schemas") String schemas) {
+        log.debug("Start GetColumnsForJoinTwo - Get Request - with tables: {}, schemas: {}", tables, schemas);
         List<String> tablesList = new ArrayList<>(Arrays.asList(tables.split(",")));
         List<String> schemasList = new ArrayList<>(Arrays.asList(schemas.split(",")));
         return infoColumnService.getColumnsForJoinTwo(tablesList, schemasList);
@@ -63,6 +71,7 @@ public class InfoColumnController {
 
     @DeleteMapping("/columns/deleteAll")
     public void deleteAllColumns() {
+        log.debug("DeleteAllColumns called");
         infoColumnService.deleteAllColumn();
     }
 
diff --git a/src/main/java/com/apside/assistDbBackend/controller/InfoTableController.java b/src/main/java/com/apside/assistDbBackend/controller/InfoTableController.java
index 97d97b5..32a934d 100644
--- a/src/main/java/com/apside/assistDbBackend/controller/InfoTableController.java
+++ b/src/main/java/com/apside/assistDbBackend/controller/InfoTableController.java
@@ -2,13 +2,16 @@ package com.apside.assistDbBackend.controller;
 
 import com.apside.assistDbBackend.service.InfoTableService;
 import com.apside.assistDbBackend.model.InfoTable;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.Optional;
 
 @RestController
 @RequestMapping("/api")
+@Slf4j
 public class InfoTableController {
     @Autowired
     private InfoTableService infoTableService;
@@ -21,6 +24,7 @@ public class InfoTableController {
      */
     @GetMapping("/table/{id}")
     public InfoTable getTable(@PathVariable("id") final Long id) {
+        log.debug("Start getTable - Get Request - with id: " + id);
         Optional<InfoTable> infoTable = infoTableService.getTable(id);
         if(infoTable.isPresent()) {
             return infoTable.get();
@@ -44,6 +48,7 @@ public class InfoTableController {
      */
     @GetMapping("/schemas/all")
     public Iterable<String> getSchemas() {
+        log.debug("Start getSchemas - Get Request");
         return infoTableService.getAllSchemas();
     }
 
@@ -52,17 +57,20 @@ public class InfoTableController {
      * @return - An Iterable object of InfoTable full filled
      */
     @GetMapping("/tables/{schema}")
-    public Iterable<InfoTable> getTables(@PathVariable("schema") final String schema) {
+    public Iterable<InfoTable> getTablesBySchemaName(@PathVariable("schema") final String schema) {
+        log.debug("Start getTablesBySchemaName - Get Request - with schema: {}", schema);
         return infoTableService.getTablesBySchemaName(schema);
     }
 
     @GetMapping("/schemas/{table}")
     public Iterable<InfoTable> getSchemaByTableName(@PathVariable("table") final String table) {
+        log.debug("Start getSchemaByTableName - Get Request - with table: {}", table);
         return infoTableService.getSchemaByTableName(table);
     }
 
     @DeleteMapping("/tables/deleteAll")
     public void deleteAllTables() {
+        log.debug("DeleteAllTables called");
         infoTableService.deleteAllTable();
     }
 
diff --git a/src/main/java/com/apside/assistDbBackend/controller/LinkInfoController.java b/src/main/java/com/apside/assistDbBackend/controller/LinkInfoController.java
index 307664d..06927d5 100644
--- a/src/main/java/com/apside/assistDbBackend/controller/LinkInfoController.java
+++ b/src/main/java/com/apside/assistDbBackend/controller/LinkInfoController.java
@@ -2,13 +2,15 @@ package com.apside.assistDbBackend.controller;
 
 import com.apside.assistDbBackend.model.LinkInfo;
 import com.apside.assistDbBackend.service.LinkInfoService;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.DeleteMapping;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.*;
 
 import java.util.Optional;
 
+@RestController
+@RequestMapping("/api")
+@Slf4j
 public class LinkInfoController {
 
     @Autowired
@@ -22,6 +24,7 @@ public class LinkInfoController {
      */
     @GetMapping("/link/{id}")
     public LinkInfo getLinkInfo(@PathVariable("id") final Long id) {
+        log.debug("Start getLinkInfo - Get Request - with id: " + id);
         Optional<LinkInfo> linkInfo = linkInfoService.getLinkInfo(id);
         if(linkInfo.isPresent()) {
             return linkInfo.get();
@@ -36,11 +39,13 @@ public class LinkInfoController {
      */
     @GetMapping("/links/all")
     public Iterable<LinkInfo> getLinksInfos() {
+        log.debug("Start getLinksInfos - Get Request");
         return linkInfoService.getAllLinksInfos();
     }
 
     @DeleteMapping("/links/deleteAll")
     public void deleteAllLinks() {
+        log.debug("DeleteAllLinks called");
         linkInfoService.deleteAllLinks();
     }
 }
diff --git a/src/main/java/com/apside/assistDbBackend/controller/ResetDataController.java b/src/main/java/com/apside/assistDbBackend/controller/ResetDataController.java
index e560757..1efe24a 100644
--- a/src/main/java/com/apside/assistDbBackend/controller/ResetDataController.java
+++ b/src/main/java/com/apside/assistDbBackend/controller/ResetDataController.java
@@ -3,11 +3,13 @@ package com.apside.assistDbBackend.controller;
 import java.io.IOException;
 
 import com.apside.assistDbBackend.service.ResetDataService;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
 @RestController
 @RequestMapping("/api")
+@Slf4j
 public class ResetDataController {
     @Autowired
     private ResetDataService resetDataService;
@@ -15,6 +17,7 @@ public class ResetDataController {
 
     @PostMapping("/reset")
     public void resetData() throws IOException {
+        log.debug("ResetData called");
         resetDataService.deleteEverything();
         resetDataService.insertEverything();
         resetDataService.checkAndInsertLinks();
diff --git a/src/main/java/com/apside/assistDbBackend/controller/ScriptController.java b/src/main/java/com/apside/assistDbBackend/controller/ScriptController.java
index 7ed6ee8..c91fe9e 100644
--- a/src/main/java/com/apside/assistDbBackend/controller/ScriptController.java
+++ b/src/main/java/com/apside/assistDbBackend/controller/ScriptController.java
@@ -3,8 +3,10 @@ package com.apside.assistDbBackend.controller;
 import com.apside.assistDbBackend.model.LinkScriptTag;
 import com.apside.assistDbBackend.model.Script;
 import com.apside.assistDbBackend.service.ScriptsService;
+import lombok.extern.slf4j.Slf4j;
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
 import org.springframework.web.bind.annotation.*;
 
 import java.io.IOException;
@@ -13,34 +15,40 @@ import java.util.List;
 
 @RestController
 @RequestMapping("/api")
+@Slf4j
 public class ScriptController {
     @Autowired
     ScriptsService scriptsService;
 
     @GetMapping("/scripts")
     public List<Script> getAllScripts() throws IOException, GitAPIException {
+        log.debug("GetAllScripts called");
         return scriptsService.retrieveScripts();
     }
 
     @GetMapping("/scripts/link")
     public List<LinkScriptTag> getAllLinkScriptsTags() throws IOException {
+        log.debug("GetAllLinkScriptsTags called");
         return scriptsService.getAllScriptTag();
     }
 
     @DeleteMapping("/script/delete/{name}")
     public void deleteScript(@PathVariable("name") final String name){
+        log.debug("Start DeleteScript - Delete Request - with name: {}" + name);
         scriptsService.deleteOneScript(name);
     }
 
 
     @GetMapping("/script/add")
     public void addScript(@RequestParam("content") String content, @RequestParam("name") String name, @RequestParam("desc") String description, @RequestParam("tagList") List<String> tagsList, @RequestParam("linkid") int linkId) throws IOException, GitAPIException, URISyntaxException {
+        log.debug("Start AddScript - Get Request - with name: {}, description: {}, tagsList: {} and linkId: {}", name, description, tagsList, linkId);
         scriptsService.addOneScript(content, name);
         scriptsService.addOneLink(name, description, tagsList, linkId);
     }
 
     @GetMapping("/script/edit")
     public void editScript(@RequestParam("content") String content, @RequestParam("defaultname") String defaultName, @RequestParam("newname") String newName, @RequestParam("desc") String description, @RequestParam("tagList") List<String> tagsList, @RequestParam("linkid") int linkId) throws IOException, GitAPIException, URISyntaxException {
+        log.debug("Start EditScript - Get Request - with defaultName: {}, newName: {}, description: {}, tagsList: {}, linkId: {}", defaultName, newName, description, tagsList, linkId);
         scriptsService.simpleDeleteScript(defaultName);
         scriptsService.addOneScript(content, newName);
         scriptsService.updateOneLink(newName, description, tagsList, linkId);
diff --git a/src/main/java/com/apside/assistDbBackend/controller/TagsController.java b/src/main/java/com/apside/assistDbBackend/controller/TagsController.java
index 284b61a..ead0784 100644
--- a/src/main/java/com/apside/assistDbBackend/controller/TagsController.java
+++ b/src/main/java/com/apside/assistDbBackend/controller/TagsController.java
@@ -2,6 +2,7 @@ package com.apside.assistDbBackend.controller;
 
 import com.apside.assistDbBackend.model.Tag;
 import com.apside.assistDbBackend.service.TagsService;
+import lombok.extern.slf4j.Slf4j;
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
@@ -12,6 +13,7 @@ import java.util.List;
 
 @RestController
 @RequestMapping("/api")
+@Slf4j
 public class TagsController {
 
     @Autowired
@@ -19,21 +21,25 @@ public class TagsController {
 
     @GetMapping("/tags/all")
     public List<Tag> getTags() throws IOException, GitAPIException {
+        log.debug("GetTags called");
         return tagsService.getAllTags();
     }
 
     @DeleteMapping("/tag/delete/{nameTag}")
     public void deleteTag(@PathVariable("nameTag") final String nameTag) throws IOException, GitAPIException, URISyntaxException {
+        log.debug("Start DeleteTag - Delete Request - with name: {}", nameTag);
         tagsService.deleteTag(nameTag);
     }
 
     @PostMapping("/tag/add")
     public void addTag(@RequestBody Tag tag) throws IOException, GitAPIException, URISyntaxException {
+        log.debug("Start AddTag - Post Request - with tag: {}", tag);
         tagsService.addTag(tag);
     }
 
     @PutMapping("/tag/update/{prevTag}")
     public void updateTag(@PathVariable("prevTag") final String prevTag, @RequestBody Tag tag) throws IOException, GitAPIException, URISyntaxException {
+        log.debug("Start UpdateTag - Put Request - with previous tag: {}, new tag info: {}", prevTag, tag);
         tagsService.updateTag(prevTag, tag);
     }
 }
diff --git a/src/main/java/com/apside/assistDbBackend/service/GitService.java b/src/main/java/com/apside/assistDbBackend/service/GitService.java
index 35a14dd..22acd1e 100644
--- a/src/main/java/com/apside/assistDbBackend/service/GitService.java
+++ b/src/main/java/com/apside/assistDbBackend/service/GitService.java
@@ -1,6 +1,7 @@
 package com.apside.assistDbBackend.service;
 
 import lombok.Data;
+import lombok.extern.slf4j.Slf4j;
 import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.api.RemoteAddCommand;
 import org.eclipse.jgit.api.errors.GitAPIException;
@@ -15,6 +16,7 @@ import java.net.URISyntaxException;
 
 @Data
 @Service
+@Slf4j
 public class GitService {
 
     private final String tempDirectoryPath;
@@ -31,6 +33,7 @@ public class GitService {
     private String accesToken;
 
     public void pushToGit() throws IOException, GitAPIException, URISyntaxException {
+        log.debug("Starting pushToGit method.");
         try (Git git = Git.open(new File(tempDirectoryPath))){
             RemoteAddCommand remoteAddCommand = git.remoteAdd();
             remoteAddCommand.setName("origin");
@@ -45,12 +48,22 @@ public class GitService {
             userPass = new UsernamePasswordCredentialsProvider(userGit, accesToken);
 
             git.push().setCredentialsProvider(userPass).call();
+            log.info("Push to Git successful.");
+        } catch (IOException|GitAPIException exception){
+            log.error("Error push from git", exception);
+            throw exception;
         }
+
     }
 
     public void pullFromGit() throws IOException, GitAPIException {
+        log.debug("Starting pullFromGit method.");
         try (Git git = Git.open(new File(tempDirectoryPath))){
             git.pull().setCredentialsProvider(new UsernamePasswordCredentialsProvider(userGit, accesToken)).setRemote("origin").setRemoteBranchName("main").call();
+            log.info("Pull from Git successful.");
+        } catch (IOException|GitAPIException exception){
+            log.error("Error push from git", exception);
+            throw exception;
         }
 
     }
diff --git a/src/main/java/com/apside/assistDbBackend/service/InfoColumnService.java b/src/main/java/com/apside/assistDbBackend/service/InfoColumnService.java
index ae05656..963b70c 100644
--- a/src/main/java/com/apside/assistDbBackend/service/InfoColumnService.java
+++ b/src/main/java/com/apside/assistDbBackend/service/InfoColumnService.java
@@ -3,6 +3,7 @@ package com.apside.assistDbBackend.service;
 import com.apside.assistDbBackend.repository.InfoColumnRepository;
 import com.apside.assistDbBackend.model.InfoColumn;
 import lombok.Data;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
@@ -11,47 +12,58 @@ import java.util.Optional;
 
 @Data
 @Service
+@Slf4j
 public class InfoColumnService {
     @Autowired
     private InfoColumnRepository infoColumnRepository;
 
     public Optional<InfoColumn> getColumn(final Long id) {
+        log.debug("Start GetColumn method - CRUD");
         return infoColumnRepository.findById(id);
     }
 
     public Iterable<InfoColumn> getAllColumns() {
+        log.debug("Start GetAllColumns method - CRUD");
         return infoColumnRepository.findAll();
     }
 
     public Iterable<InfoColumn> getSelectedColumns(String table, String schema) {
+        log.debug("Start GetSelectedColumn method - Custom");
         return infoColumnRepository.getSelectedColumns(table, schema);
     }
 
     public Iterable<InfoColumn> getColumnsForJoin(String firstTable, String secondTable, String firstSchema, String secondSchema) {
+        log.debug("Start GetColumnForJoin method - Custom");
         return infoColumnRepository.getColumnsForJoin(firstTable, secondTable, firstSchema, secondSchema);
     }
 
     public Iterable<InfoColumn> getColumnsForJoinTwo(List<String> tables, List<String> schemas) {
+        log.debug("Start GetColumnForJoinTwo method - Custom");
         return infoColumnRepository.getColumnsForJoinTwo(tables, schemas);
     }
 
     public void deleteColumn(final Long id) {
+        log.debug("Start deleteColumn method - CRUD");
         infoColumnRepository.deleteById(id);
     }
 
     public void deleteAllColumn() {
+        log.debug("Start deleteAllColumns method - CRUD");
         infoColumnRepository.deleteAll();
     }
 
     public InfoColumn addOrUpdateColumn(InfoColumn infoColumn) {
+        log.debug("Start addOrUpdateColumn method - CRUD");
         return infoColumnRepository.save(infoColumn);
     }
 
     public InfoColumn getSpecCol(String nameCol, String dataType, int lengthCol, String columnText){
+        log.debug("Start getSpecCol method - Custom");
         return infoColumnRepository.getSpecColumn(nameCol, dataType, lengthCol, columnText);
     }
 
     public void truncateMyColumn(){
+        log.debug("Start truncateMyColumn method - Custom");
         infoColumnRepository.truncateMyColumn();
     }
 }
diff --git a/src/main/java/com/apside/assistDbBackend/service/InfoTableService.java b/src/main/java/com/apside/assistDbBackend/service/InfoTableService.java
index 55281a6..1667cbe 100644
--- a/src/main/java/com/apside/assistDbBackend/service/InfoTableService.java
+++ b/src/main/java/com/apside/assistDbBackend/service/InfoTableService.java
@@ -3,6 +3,7 @@ package com.apside.assistDbBackend.service;
 import com.apside.assistDbBackend.repository.InfoTableRepository;
 import com.apside.assistDbBackend.model.InfoTable;
 import lombok.Data;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
@@ -10,40 +11,52 @@ import java.util.Optional;
 
 @Data
 @Service
+@Slf4j
 public class InfoTableService {
     @Autowired
     private InfoTableRepository infoTableRepository;
 
     public Optional<InfoTable> getTable(final Long id) {
+        log.debug("Start getTable method - CRUD");
         return infoTableRepository.findById(id);
     }
 
     public Iterable<InfoTable> getAllTables() {
+        log.debug("Start getAllTables method - CRUD");
         return infoTableRepository.findAll();
     }
 
     public Iterable<InfoTable> getTablesBySchemaName(String schema) {
+        log.debug("Start getTableBySchemaName method - Custom");
         return infoTableRepository.getTablesBySchemaName(schema);
     }
 
     public Iterable<InfoTable> getSchemaByTableName(String table) {
+        log.debug("Start getSchemaByTableName method - Custom");
         return infoTableRepository.getSchemaByTableName(table);
     }
 
-    public Iterable<String> getAllSchemas(){return infoTableRepository.getAllSchemas();}
+    public Iterable<String> getAllSchemas(){
+        log.debug("Start getAllSchemas method - CRUD");
+        return infoTableRepository.getAllSchemas();
+    }
     public void deleteTable(final Long id) {
+        log.debug("Start deleteTable method - CRUD");
         infoTableRepository.deleteById(id);
     }
 
     public void deleteAllTable() {
+        log.debug("Start deleteAllTable method - CRUD");
         infoTableRepository.deleteAll();
     }
 
     public InfoTable addOrUpdateTable(InfoTable infoTable) {
+        log.debug("Start deleteAllTable method - CRUD");
         return infoTableRepository.save(infoTable);
     }
 
     public void truncateMyTable(){
+        log.debug("Start truncateMyTable method - Custom");
         infoTableRepository.truncateMyTable();
     }
 
diff --git a/src/main/java/com/apside/assistDbBackend/service/LinkInfoService.java b/src/main/java/com/apside/assistDbBackend/service/LinkInfoService.java
index b0fe35e..5437809 100644
--- a/src/main/java/com/apside/assistDbBackend/service/LinkInfoService.java
+++ b/src/main/java/com/apside/assistDbBackend/service/LinkInfoService.java
@@ -3,6 +3,7 @@ package com.apside.assistDbBackend.service;
 import com.apside.assistDbBackend.model.LinkInfo;
 import com.apside.assistDbBackend.repository.LinkInfoRepository;
 import lombok.Data;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
@@ -10,32 +11,39 @@ import java.util.Optional;
 
 @Data
 @Service
+@Slf4j
 public class LinkInfoService {
     @Autowired
     private LinkInfoRepository linkInfoRepository;
 
     public Optional<LinkInfo> getLinkInfo(final Long id) {
+        log.debug("Start getLinkInfo method - CRUD");
         return linkInfoRepository.findById(id);
     }
 
     public Iterable<LinkInfo> getAllLinksInfos() {
+        log.debug("Start getAllLinksInfos method - CRUD");
         return linkInfoRepository.findAll();
     }
 
     public void deleteLinkInfo(final Long id) {
+        log.debug("Start deleteLinkInfo method - CRUD");
         linkInfoRepository.deleteById(id);
     }
 
     public void deleteAllLinks() {
+        log.debug("Start deleteAllLinks method - CRUD");
         linkInfoRepository.deleteAll();
     }
 
     public LinkInfo addOrUpdateLink(LinkInfo linkInfo) {
+        log.debug("Start addOrUpdateLink method - CRUD");
         return linkInfoRepository.save(linkInfo);
     }
 
 
     public void truncateMyLink(){
+        log.debug("Start truncateMyLink method - Custom");
         linkInfoRepository.truncateMyLink();
     }
 }
diff --git a/src/main/java/com/apside/assistDbBackend/service/ResetDataService.java b/src/main/java/com/apside/assistDbBackend/service/ResetDataService.java
index 8612de1..58d9a73 100644
--- a/src/main/java/com/apside/assistDbBackend/service/ResetDataService.java
+++ b/src/main/java/com/apside/assistDbBackend/service/ResetDataService.java
@@ -4,6 +4,7 @@ import com.apside.assistDbBackend.model.LinkInfo;
 import com.apside.assistDbBackend.model.InfoColumn;
 import com.apside.assistDbBackend.model.InfoTable;
 import lombok.Data;
+import lombok.extern.slf4j.Slf4j;
 import org.json.JSONArray;
 import org.json.JSONObject;
 import org.springframework.stereotype.Service;
@@ -16,6 +17,7 @@ import java.nio.file.Paths;
 
 @Data
 @Service
+@Slf4j
 public class ResetDataService {
 
     @Autowired
@@ -46,6 +48,7 @@ public class ResetDataService {
     }
 
     public void insertEverything() throws IOException {
+        log.debug("Start insert every data into DB");
         JSONArray jo = new JSONArray(result);
         for (int i=0; i<jo.length(); i++){
             JSONObject schema = jo.getJSONObject(i);
@@ -115,9 +118,11 @@ public class ResetDataService {
                 }
             }
         }
+        log.info("Insert all data into DB - success");
     }
 
     public void checkAndInsertLinks() throws IOException {
+        log.debug("Start check data into DB and insert links between table and columns");
         JSONArray jo = new JSONArray(result);
         for (int i=0; i<jo.length(); i++){
             JSONObject schema = jo.getJSONObject(i);
@@ -175,6 +180,7 @@ public class ResetDataService {
                 }
             }
         }
+        log.info("Check and insert links data into DB - success");
     }
 
 
diff --git a/src/main/java/com/apside/assistDbBackend/service/ScriptsService.java b/src/main/java/com/apside/assistDbBackend/service/ScriptsService.java
index 3270362..d5aef33 100644
--- a/src/main/java/com/apside/assistDbBackend/service/ScriptsService.java
+++ b/src/main/java/com/apside/assistDbBackend/service/ScriptsService.java
@@ -3,6 +3,9 @@ package com.apside.assistDbBackend.service;
 import com.apside.assistDbBackend.model.LinkScriptTag;
 import com.apside.assistDbBackend.model.Script;
 import lombok.Data;
+import lombok.extern.java.Log;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.log4j.Logger;
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.json.JSONArray;
 import org.json.JSONObject;
@@ -11,6 +14,7 @@ import org.springframework.stereotype.Service;
 
 import java.io.File;
 import java.io.FileWriter;
+import java.io.IOError;
 import java.io.IOException;
 import java.net.URISyntaxException;
 import java.nio.file.Files;
@@ -20,6 +24,7 @@ import java.util.*;
 
 @Data
 @Service
+@Slf4j
 public class ScriptsService {
     @Autowired
     private GitService gitService;
@@ -40,7 +45,7 @@ public class ScriptsService {
     private static final String TAGS_STRING = "tags";
     private static final String DATA_STRING = "data";
 
-    public ScriptsService() throws IOException {
+    public ScriptsService() {
         linkScriptTagPath = new File(System.getProperty(USER_DIR_STRING)).getParent() + "/AssistDB_AdditionalFiles/scripts.json";
         pathOfLink = Paths.get(linkScriptTagPath);
         tempDirectoryPath = new File(System.getProperty(USER_DIR_STRING)).getParent() + PATH_TO_SCRIPT_DIR;
@@ -54,6 +59,7 @@ public class ScriptsService {
     }
 
     public List<Script> retrieveScripts() throws IOException, GitAPIException {
+        log.debug("Start retrieve all scripts");
         gitService.pullFromGit();
         List<Script> listOfScripts = new ArrayList<>();
         //Creating a File object for directory
@@ -65,10 +71,12 @@ public class ScriptsService {
             Script tempScript = new Script(extension, contents[i], allData);
             listOfScripts.add(tempScript);
         }
+        log.info("Get all Scripts successful");
         return listOfScripts;
     }
 
     public List<LinkScriptTag> getAllScriptTag() throws IOException {
+        log.debug("Start retrieve all links scripts/tags");
         initialize();
         List<LinkScriptTag> listLinkScriptTag = new ArrayList<>();
         if (dataLinkScriptsTags.length()>0){
@@ -88,40 +96,51 @@ public class ScriptsService {
                 listLinkScriptTag.add(newLinkScriptTag);
             }
         }
-
+        log.info("Get all links between Scripts and Tags successful");
         return listLinkScriptTag;
     }
 
     public void deleteOneScript(final String name){
+        log.debug("Start delete one script with Git");
         try {
             File scriptDirectory = new File(tempDirectoryPath + "/" + name);
             scriptDirectory.delete();
             gitService.pushToGit();
             gitService.pullFromGit();
+            log.info("Delete one Script successful");
         } catch (Exception e){
+            log.error("Error : ", e);
             e.printStackTrace();
         }
     }
 
     public void simpleDeleteScript(final String name){
+        log.debug("Start delete one script without Git");
         try {
             File scriptDirectory = new File(tempDirectoryPath + "/" + name);
             scriptDirectory.delete();
-
+            log.info("Delete one Script successful");
         } catch (Exception e){
             e.printStackTrace();
+            log.error("Error : ", e);
         }
     }
 
     public void addOneScript(final String content, final String name) throws IOException {
+        log.debug("Start add one scripts");
         File newFile = new File(tempDirectoryPath + "/" + name);
         newFile.createNewFile();
         try (FileWriter writerDataFile = new FileWriter(tempDirectoryPath + "/" + name);) {
             writerDataFile.write(content);
+            log.info("Add one Script successful");
+        } catch (IOException ioException){
+            log.error("Error add one Script : ", ioException);
+            throw ioException;
         }
     }
 
     public void addOneLink(final String name, final String description, final List<String> tagList, final int linkId) throws IOException, GitAPIException, URISyntaxException {
+        log.debug("Start add one link between script and tags");
         initialize();
         gitService.pullFromGit();
         JSONObject newLink = new JSONObject();
@@ -139,9 +158,11 @@ public class ScriptsService {
         JSONObject newObj = dataGlobalScripts.put(DATA_STRING, newArr);
         Files.write(pathOfLink, newObj.toString().getBytes());
         gitService.pushToGit();
+        log.info("Add one link successful");
     }
 
     public void updateOneLink(final String name, final String description, final List<String> tagList, final int linkId) throws IOException, GitAPIException, URISyntaxException {
+        log.debug("Start update one link between script and tags");
         initialize();
         gitService.pullFromGit();
         JSONArray newArr = new JSONArray();
@@ -169,6 +190,7 @@ public class ScriptsService {
         Files.write(pathOfLink, newObj.toString().getBytes());
 
         gitService.pushToGit();
+        log.info("Update one link successful");
 
     }
 }
diff --git a/src/main/java/com/apside/assistDbBackend/service/TagsService.java b/src/main/java/com/apside/assistDbBackend/service/TagsService.java
index eb450f2..3bb6e65 100644
--- a/src/main/java/com/apside/assistDbBackend/service/TagsService.java
+++ b/src/main/java/com/apside/assistDbBackend/service/TagsService.java
@@ -2,6 +2,7 @@ package com.apside.assistDbBackend.service;
 
 import com.apside.assistDbBackend.model.Tag;
 import lombok.Data;
+import lombok.extern.slf4j.Slf4j;
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.json.JSONArray;
 import org.json.JSONObject;
@@ -19,6 +20,7 @@ import java.util.Objects;
 
 @Data
 @Service
+@Slf4j
 public class TagsService {
     @Autowired
     private GitService gitService;
@@ -31,7 +33,7 @@ public class TagsService {
     private static final String DATA_STRING = "data";
     private static final String TAG_STRING = "tag";
     private static final String DESCRIPTION_STRING = "description";
-    public TagsService() throws IOException {
+    public TagsService() {
         tempDirectoryPath = new File(System.getProperty("user.dir")).getParent() + "/AssistDB_AdditionalFiles/tags.json";
         path = Paths.get(tempDirectoryPath);
     }
@@ -43,6 +45,7 @@ public class TagsService {
     }
 
     public List<Tag> getAllTags() throws IOException, GitAPIException {
+        log.debug("Start get all tags from json");
         gitService.pullFromGit();
         initialize();
         List<Tag> listOfTag = new ArrayList<>();
@@ -54,10 +57,12 @@ public class TagsService {
             Tag tempTag = new Tag(tagId, tagName, tagDescription);
             listOfTag.add(tempTag);
         }
+        log.info("Get all tags from json successful");
         return listOfTag;
     }
 
     public void deleteTag(final String deleteNameTag) throws IOException, GitAPIException, URISyntaxException {
+        log.debug("Start delete one tag in json");
         initialize();
         JSONArray newArr = new JSONArray();
         for (int i=0; i<data.length(); i++) {
@@ -71,9 +76,11 @@ public class TagsService {
         Files.write(path, newObj.toString().getBytes());
         gitService.pushToGit();
         gitService.pullFromGit();
+        log.info("Delete one tag in json file successful");
     }
 
     public void addTag(Tag tag) throws IOException, GitAPIException, URISyntaxException {
+        log.debug("Start add one tag in json");
         initialize();
         gitService.pullFromGit();
         JSONObject newTag = new JSONObject();
@@ -85,8 +92,10 @@ public class TagsService {
         Files.write(path, newObj.toString().getBytes());
         gitService.pushToGit();
         gitService.pullFromGit();
+        log.info("Delete one tag in json successful");
     }
     public void updateTag(final String prevTag, Tag modTag) throws IOException, GitAPIException, URISyntaxException {
+        log.debug("Start update one tag in json");
         initialize();
         gitService.pullFromGit();
         JSONArray newArr = new JSONArray();
@@ -107,6 +116,7 @@ public class TagsService {
         Files.write(path, newObj.toString().getBytes());
         gitService.pushToGit();
         gitService.pullFromGit();
+        log.info("Update one tag in json successful");
     }
 
 }
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 7538468..e0fd3c8 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -6,7 +6,7 @@ spring.datasource.password=Pompom.21
 server.port=9001
 
 USERNAME_GIT = fhibert@apside.fr
-ACCESS_TOKEN_GIT = e54612b6d1d73eef4f0a49c88b0e35ccf02d45eb
+ACCESS_TOKEN_GIT = accesstokenexemple
 
 logging.level.org.springframework.boot.web.embedded.tomcat=INFO
 logging.level.org.springframework=error
diff --git a/src/main/resources/log4j.properties b/src/main/resources/log4j.properties
new file mode 100644
index 0000000..4a7534d
--- /dev/null
+++ b/src/main/resources/log4j.properties
@@ -0,0 +1,15 @@
+# Log4J configuration
+log4j.rootLogger=DEBUG,CONSOLE,FILE
+
+log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
+log4j.appender.CONSOLE.Target=System.out
+log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
+log4j.appender.CONSOLE.layout.ConversionPattern=[%d] %t %c %L %-5p - %m%n
+
+log4j.appender.FILE=org.apache.log4j.DailyRollingFileAppender
+log4j.appender.FILE.File=/apps/logs/appname.log
+log4j.appender.FILE.DatePattern='.'yyyy-MM-dd
+log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
+log4j.appender.FILE.layout.ConversionPattern=[%d] %t %c %L %-5p - %m%n
+
+log4j.logger.org.springframework=WARN
\ No newline at end of file