diff --git a/src/colnod/colnod.pri b/src/colnod/colnod.pri
index c6a45af..749c655 100644
--- a/src/colnod/colnod.pri
+++ b/src/colnod/colnod.pri
@@ -1,30 +1,32 @@
-INCLUDEPATH += $$PWD
-
-CONFIG += c++14
-
-
-SOURCES += \
-    $$PWD/colnodapi.cpp \
-    $$PWD/databasemanager.cpp \
-    $$PWD/datamanager.cpp \
-    $$PWD/entity.cpp \
-    $$PWD/logger.cpp \
-    $$PWD/requestmanager.cpp \
-    $$PWD/response.cpp \
-    $$PWD/subject.cpp \
-    $$PWD/syncmanager.cpp \
-    $$PWD/token.cpp
-
-HEADERS += \
-    $$PWD/colnodapi.h \
-    $$PWD/databasemanager.h \
-    $$PWD/datamanager.h \
-    $$PWD/entity.h \
-    $$PWD/logger.h \
-    $$PWD/requestmanager.h \
-    $$PWD/response.h \
-    $$PWD/subject.h \
-    $$PWD/syncmanager.h \
-    $$PWD/token.h
-
-include(../../server-sdk/serversdk.pri)
+INCLUDEPATH += $$PWD
+
+CONFIG += c++14
+
+
+SOURCES += \
+    $$PWD/colnodapi.cpp \
+    $$PWD/data.cpp \
+    $$PWD/databaseapi.cpp \
+    $$PWD/datamanager.cpp \
+    $$PWD/entity.cpp \
+    $$PWD/logger.cpp \
+    $$PWD/requestmanager.cpp \
+    $$PWD/response.cpp \
+    $$PWD/subject.cpp \
+    $$PWD/syncmanager.cpp \
+    $$PWD/token.cpp
+
+HEADERS += \
+    $$PWD/colnodapi.h \
+    $$PWD/data.h \
+    $$PWD/databaseapi.h \
+    $$PWD/datamanager.h \
+    $$PWD/entity.h \
+    $$PWD/logger.h \
+    $$PWD/requestmanager.h \
+    $$PWD/response.h \
+    $$PWD/subject.h \
+    $$PWD/syncmanager.h \
+    $$PWD/token.h
+
+include(../../server-sdk/serversdk.pri)
diff --git a/src/colnod/colnodapi.cpp b/src/colnod/colnodapi.cpp
index bd401fe..26b5f14 100644
--- a/src/colnod/colnodapi.cpp
+++ b/src/colnod/colnodapi.cpp
@@ -4,26 +4,36 @@ ColnodAPI::ColnodAPI()
 {
 }
 
-ColnodAPI::ColnodAPI(serversdk::RequestManager* reqMan)
-    :mReqMan(reqMan)
+ColnodAPI::ColnodAPI(serversdk::RequestManager* reqMan, QString userName, QString password, qint64 lastSync)
+    :mReqMan(reqMan), mUserName(userName), mPassword(password)
 {
-
+    mLastSync.set_timestamp(lastSync);
 }
 
 void ColnodAPI::downloadData()
 {
     // Have to get Login
     auto login = requestLogin();
-    connect(login.get(), &serversdk::Request::finished, this, [=](){
+    connect(login.get(), &serversdk::Request::finished, this, [=](){  // TODO: error handling
         // Get token
         AuthToken token;
         token.fromJson(login->responseData());
+        authToken = token.idWithoutCurlyBraces();
 
-        auto data = std::make_shared<ColnodData>();
-        emit downloadDataFinished();
+        // if I have all data emit downloadDataFinished
+        connect(this, &ColnodAPI::partOfDataReady, this, &ColnodAPI::areDataReady);
+        getTokensUpdated(mLastSync);
+        getTokensDeleted(mLastSync);
+        getSubjectsUpdated(mLastSync);
+        getSubjectsDeleted(mLastSync);
     });
 }
 
+void ColnodAPI::uploadData(std::shared_ptr<Data> data)
+{
+    setTokens(data->updatedTokens);
+}
+
 std::shared_ptr<serversdk::Request> ColnodAPI::requestLogin()
 {
     Q_ASSERT(mReqMan);
@@ -38,7 +48,6 @@ std::shared_ptr<serversdk::Request> ColnodAPI::requestLogin()
     login.set_password(encodedPassword);
 
     auto loginRequest = composeRequest("/AaaManager/authSession", login.jsonData());
-//    auto loginRequest = std::make_shared<serversdk::Request>("POST", "https://192.168.1.3:8443/AaaManager/authSession", login->jsonData());
     loginRequest->setUserName(login.username());
     loginRequest->setPassword(login.password());
     mReqMan->processRequest(loginRequest);
@@ -46,50 +55,74 @@ std::shared_ptr<serversdk::Request> ColnodAPI::requestLogin()
     return loginRequest;
 }
 
-QList<Token> ColnodAPI::getTokensUpdated(const qint64 &time)
-
+void ColnodAPI::getTokensUpdated(const Timestamp &time)
 {
-//    AuthToken token;
-//    token.fromJson(data);
-//    serversdk::Request request("POST", host + "/TokenManager/getTokensUpdated", getTimestampJson(time));
-//    request.setToken(mToken);
-//    mReqMan->processRequest();
-}
-
-QString ColnodAPI::login(const QString &username, const QString &password)
-{
-    auto login = std::make_unique<LoginResp>();
-    login->set_username(username);
-    login->set_password(QCryptographicHash::hash(QString(password).toLocal8Bit(), QCryptographicHash::Sha512).toHex().toUpper());
-
-    serversdk::RequestManager reqMan;
-    reqMan.setIgnoreSsl(true);
-
-    auto loginRequest = std::make_shared<serversdk::Request>("POST", "https://192.168.1.3:8443/AaaManager/authSession", login->jsonData());
-    loginRequest->setUserName(login->username());
-    loginRequest->setPassword(login->password());
-    reqMan.processRequest(loginRequest);
-
-    QObject::connect(loginRequest.get(), &serversdk::Request::finished, [=](){
-        auto data = loginRequest->responseData();
-
-        AuthToken token;
-        token.fromJson(data);
-        return token.idWithoutCurlyBraces();
+    auto request = composeRequest("/TokenManager/getTokensUpdated", time.jsonData());
+    request->setToken(authToken);
+    mReqMan->processRequest(request);
+    connect(request.get(), &serversdk::Request::finished, [=](){
+        saveUpdatedTokens(request->responseData());
+        emit partOfDataReady();
     });
 }
 
-QByteArray ColnodAPI::getTimestampJson(const qint64 &time)
+void ColnodAPI::getTokensDeleted(const Timestamp &time)
 {
-    QJsonObject reqBody = {{"timestamp",QJsonValue(time)}};
-    QJsonDocument doc;
-    doc.setObject(reqBody);
-    return doc.toJson();
+    auto request = composeRequest("/TokenManager/getTokensDeleted", time.jsonData());
+    request->setToken(authToken);
+    mReqMan->processRequest(request);
+    connect(request.get(), &serversdk::Request::finished, [=](){
+        saveDeletedTokens(request->responseData());
+        emit partOfDataReady();
+    });
+}
+
+void ColnodAPI::getSubjectsUpdated(const Timestamp &time)
+{
+    auto request = composeRequest("/SubjectManager/getSubjectsUpdated", time.jsonData());
+    request->setToken(authToken);
+    mReqMan->processRequest(request);
+    connect(request.get(), &serversdk::Request::finished, [=](){
+        saveUpdatedSubjects(request->responseData());
+        emit partOfDataReady();
+    });
+}
+
+void ColnodAPI::getSubjectsDeleted(const Timestamp &time)
+{
+    auto request = composeRequest("/SubjectManager/getSubjectsDeleted", time.jsonData());
+    request->setToken(authToken);
+    mReqMan->processRequest(request);
+    connect(request.get(), &serversdk::Request::finished, [=](){
+        saveDeletedSubjects(request->responseData());
+        emit partOfDataReady();
+    });
+}
+
+void ColnodAPI::setTokens(const QHash<QUuid, Token> &tokens)
+{
+
+    auto request = composeRequest("/TokenManager/setTokens", Token::tokensToJSON(tokens));
+    request->setToken(authToken);
+    mReqMan->processRequest(request);
+    connect(request.get(),  &serversdk::Request::finished, [=](){
+        if (checkResponse(request->responseData())) {
+            emit partOfDataProcessFinished();
+        }
+        else {
+
+        }
+    });
+}
+
+void ColnodAPI::deleteTokens(const QList<QString> &tokenIds)
+{
+
 }
 
 std::shared_ptr<serversdk::Request> ColnodAPI::composeRequest(const QString &endpoint, const QByteArray &data)
 {
-    QString url = host + endpoint;
+    QString url = mHost + endpoint;
     return std::make_shared<serversdk::Request>("POST", url, data);
 }
 
@@ -103,6 +136,17 @@ void ColnodAPI::setPassword(const QString &password)
     mPassword = password;
 }
 
+qint64 ColnodAPI::lastSync() const
+{
+    return mLastSync.timestamp();
+}
+
+void ColnodAPI::setlastSync(const qint64 &lastSync)
+{
+    mLastSync.set_timestamp(lastSync);
+}
+
+
 QString ColnodAPI::userName() const
 {
     return mUserName;
@@ -112,3 +156,52 @@ void ColnodAPI::setUserName(const QString &userName)
 {
     mUserName = userName;
 }
+
+void ColnodAPI::areDataReady()
+{
+    if (++amountData == 4) {
+        emit downloadDataFinished(data);
+    }
+}
+
+void ColnodAPI::saveUpdatedTokens(const QByteArray &responseData)
+{
+    QJsonDocument doc = QJsonDocument::fromJson(responseData);
+    QJsonArray items = doc.object()["items"].toArray();
+    for (QJsonValueRef item : items) {
+        Token token;
+        token.fromJSON(item.toObject());
+        token.setDeleted(false);
+        data->updatedTokens.insert(token.getId(), token);
+    }
+}
+
+void ColnodAPI::saveDeletedTokens(const QByteArray &responseData)
+{
+    QJsonDocument doc = QJsonDocument::fromJson(responseData);
+    QJsonArray items = doc.object()["items"].toArray();
+    for (QJsonValueRef item : items) {
+        data->deletedTokens.append(item.toString());
+    }
+}
+
+void ColnodAPI::saveUpdatedSubjects(const QByteArray &responseData)
+{
+    QJsonDocument doc = QJsonDocument::fromJson(responseData);
+    QJsonArray items = doc.object()["items"].toArray();
+    for (QJsonValueRef item : items) {
+        Subject subject;
+        subject.fromJSON(item.toObject());
+        subject.setDeleted(false);
+        data->updatedSubjects.insert(subject.getId(), subject);
+    }
+}
+
+void ColnodAPI::saveDeletedSubjects(const QByteArray &responseData)
+{
+    QJsonDocument doc = QJsonDocument::fromJson(responseData);
+    QJsonArray items = doc.object()["items"].toArray();
+    for (QJsonValueRef item : items) {
+        data->deletedSubjects.append(item.toString());
+    }
+}
diff --git a/src/colnod/colnodapi.h b/src/colnod/colnodapi.h
index c93cb3b..793916c 100644
--- a/src/colnod/colnodapi.h
+++ b/src/colnod/colnodapi.h
@@ -1,22 +1,10 @@
 #pragma once
 
-#include "serversdk/requestmanager.h"
-#include "serversdk/request.h"
-#include "token.h"
-#include "subject.h"
 #include "serversdk/requestmanager.h"
 #include "serversdk/request.h"
 #include "serversdk/databasetable.h"
-
-struct ColnodData
-{
-    QList<std::shared_ptr<Token>> updatedTokens;
-    QList<std::shared_ptr<Token>> updatedSubjects;
-    QList<std::shared_ptr<Token>> deletedTokens;
-    QList<std::shared_ptr<Token>> deletedSubjects;
-
-    bool isValid();
-};
+#include "QDateTime"
+#include "data.h"
 
 class LoginResp : public serversdk::DatabaseTable {
     Q_OBJECT
@@ -34,45 +22,75 @@ class AuthToken : public serversdk::DatabaseTable {
     }
 };
 
+class Timestamp : public serversdk::DatabaseTable {
+    Q_OBJECT
+    TABLE_PROPERTY(qint64, timestamp, set_timestamp, 0)
+    QString toDateString()
+    {
+        return QDateTime::fromMSecsSinceEpoch(a_timestamp).toString("yyyy-MM-dd hh:mm:ss.zzz");
+    }
+};
+
 class ColnodAPI: public QObject
 {
     Q_OBJECT
 public:
     ColnodAPI();
-    ColnodAPI(serversdk::RequestManager* reqMan);
+    ColnodAPI(serversdk::RequestManager* reqMan, QString userName = "spaceti", QString password = "spaceti1", qint64 lastSync = 0);
 
     void downloadData();
+    void uploadData(std::shared_ptr<Data> data);
 
     // New approach
     std::shared_ptr<serversdk::Request> requestLogin();
 
 
-    QList<Token> getTokensUpdated(const qint64 &time);
-    QList<QString> getTokensDeleted(const qint64 &time);
-    QList<Subject> getSubjectsUpdated(const qint64 &time);
-    QList<QString> getSubjectsDeleted(const qint64 &time);
+    void getTokensUpdated(const Timestamp &time);
+    void getTokensDeleted(const Timestamp &time);
+    void getSubjectsUpdated(const Timestamp &time);
+    void getSubjectsDeleted(const Timestamp &time);
 
-    bool setTokens(const QList<Token> &tokens);
-    bool deleteTokens(const QList<QString> &tokenIds);
+    void setTokens(const QHash<QUuid, Token> &tokens);
+    void deleteTokens(const QList<QString> &tokenIds);
 
     // Attributes
     QString userName() const;
     void setUserName(const QString &userName);
     QString password() const;
     void setPassword(const QString &password);
+    qint64 lastSync() const;
+    void setlastSync(const qint64 &lastSync);
+
 
 private:
-    QString login(const QString &username, const QString &password);
+    Q_SLOT void areDataReady();
+
+private:
+    void saveUpdatedTokens(const QByteArray &responseData);
+    void saveUpdatedSubjects(const QByteArray &responseData);
+    void saveDeletedTokens(const QByteArray &responseData);
+    void saveDeletedSubjects(const QByteArray &responseData);
+
+    bool checkResponse(const QByteArray &responseData);
+
     QByteArray getTimestampJson(const qint64 &time);
     std::shared_ptr<serversdk::Request> composeRequest(const QString &endpoint, const QByteArray &data);
 
 signals:
-    void downloadDataFinished(std::shared_ptr<ColnodData> = std::shared_ptr<ColnodData>());
+    void downloadDataFinished(std::shared_ptr<Data> = std::shared_ptr<Data>());
+    void partOfDataReady();
+    void partOfDataProcessFinished();
 
 private:
     serversdk::RequestManager* mReqMan = nullptr;
-    QString host = "https://192.168.1.3:8443";
+    QString mHost = "https://192.168.1.3:8443";
     QString mUserName;
     QString mPassword;
+    Timestamp mLastSync;
+
+    std::shared_ptr<Data> data;
+
+    QString authToken;
+    qint16 amountData = 0;
 };
 
diff --git a/src/colnod/data.cpp b/src/colnod/data.cpp
new file mode 100644
index 0000000..f23b174
--- /dev/null
+++ b/src/colnod/data.cpp
@@ -0,0 +1,6 @@
+#include "data.h"
+
+Data::Data()
+{
+
+}
diff --git a/src/colnod/data.h b/src/colnod/data.h
new file mode 100644
index 0000000..39a6dca
--- /dev/null
+++ b/src/colnod/data.h
@@ -0,0 +1,17 @@
+#pragma once
+
+#include "token.h"
+#include "subject.h"
+
+
+class Data
+{
+public:
+    Data();
+
+    QHash<QUuid, Token> updatedTokens;
+    QList<QString> deletedTokens;
+    QHash<QUuid, Subject> updatedSubjects;
+    QList<QString> deletedSubjects;
+};
+
diff --git a/src/colnod/databasemanager.cpp b/src/colnod/databaseapi.cpp
similarity index 78%
rename from src/colnod/databasemanager.cpp
rename to src/colnod/databaseapi.cpp
index 74e493c..f5282d0 100644
--- a/src/colnod/databasemanager.cpp
+++ b/src/colnod/databaseapi.cpp
@@ -1,8 +1,99 @@
-#include "databasemanager.h"
+#include "databaseapi.h"
 #include "logger.h"
 
 
-DatabaseManager::DatabaseManager(const QString& host, const QString& dbName, const QString& user, const QString& password, const bool &dryMode)
+DatabaseAPI::DatabaseAPI(serversdk::DatabaseManager *dbMan)
+    :mDbMan(dbMan)
+{
+
+}
+
+void DatabaseAPI::downloadData()
+{
+    QSqlQuery updatedQuery = mDbMan->execPlainSql("SELECT id, auth_errors, description, enabled, last_update, name, no_validity, time_to_live, token_bits, token_data, token_type, subject_id, last_modified, deleted "
+                                                  "FROM colnod_token WHERE EXTRACT(EPOCH FROM last_modified) * 1000 > EXTRACT(EPOCH FROM last_update) * 1000 AND deleted = false");
+    QSqlQuery deletedQuery = mDbMan->execPlainSql("SELECT id "
+                                                  "FROM colnod_token WHERE EXTRACT(EPOCH FROM last_modified) * 1000 > EXTRACT(EPOCH FROM last_update) * 1000 AND deleted = true");
+    emit downloadDataFinished(composeData(updatedQuery, deletedQuery));
+}
+
+
+
+
+std::shared_ptr<Data> DatabaseAPI::composeData(QSqlQuery updatedQuery, QSqlQuery deletedQuery)
+{
+    auto data = std::make_shared<Data>();
+    while (updatedQuery.next()) {
+        Token token;
+        token.fromSQLRecord(updatedQuery);
+        data->updatedTokens.append(token);
+    }
+    while (deletedQuery.next()) {
+        data->deletedTokens.append(deletedQuery.value(0).toString());
+    }
+    return data;
+}
+
+qint64 DatabaseAPI::getLastSync()
+{
+    auto query = mDbMan->execPlainSql("SELECT last_sync FROM config");
+    if (query.next()){
+        return query.value(0).toLongLong();
+    }
+    else {
+        return -1;
+    }
+}
+
+void DatabaseAPI::setLastSync(qint64 timestamp)
+{
+    QSqlQuery query;
+    query.prepare("UPDATE config SET last_sync = :last_sync");
+    query.bindValue(":last_sync", timestamp);
+    executeQuery(query);
+}
+
+qint64 DatabaseAPI::getNow()
+{
+    QSqlQuery query = mDbMan->execPlainSql("SELECT EXTRACT(EPOCH FROM NOW())*1000");
+    query.next();
+    return query.value(0).toLongLong();
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+// OLD
+DatabaseAPI::DatabaseAPI(const QString& host, const QString& dbName, const QString& user, const QString& password, const bool &dryMode)
     :dryMode(dryMode)
 {
     db = QSqlDatabase::addDatabase("QPSQL");
@@ -22,7 +113,7 @@ DatabaseManager::DatabaseManager(const QString& host, const QString& dbName, con
 }
 
 // add or update subject to db
-int DatabaseManager::saveSubject(const std::shared_ptr<Subject>& subject, const QString& table)
+int DatabaseAPI::saveSubject(const std::shared_ptr<Subject>& subject, const QString& table)
 {
     QSqlQuery query;
     QString id = subject->idToStringWithoutBraces();
@@ -47,8 +138,17 @@ int DatabaseManager::saveSubject(const std::shared_ptr<Subject>& subject, const
     return rtn;
 }
 
+QSqlQuery DatabaseAPI::getUpdatedTokens()
+{
+    QSqlQuery query;
+    executeQuery(query, "SELECT id, auth_errors, description, enabled, last_update, name, no_validity, time_to_live, token_bits, token_data, token_type, subject_id, last_modified, deleted "
+                        "FROM colnod_token WHERE EXTRACT(EPOCH FROM last_modified) * 1000 > EXTRACT(EPOCH FROM last_update) * 1000 AND deleted = false");
+    return query;
+}
+
+
 // add or update token to DB
-int DatabaseManager::saveToken(const std::shared_ptr<Token>& token, const QString& table)
+int DatabaseAPI::saveToken(const std::shared_ptr<Token>& token, const QString& table)
 {
     QSqlQuery query;
     QString id = token->idToStringWithoutBraces();
@@ -81,7 +181,7 @@ int DatabaseManager::saveToken(const std::shared_ptr<Token>& token, const QStrin
 }
 
 // add of update subject attributes
-void DatabaseManager::saveSubjectAttributes(const std::shared_ptr<Subject>& subject, const QString& table)
+void DatabaseAPI::saveSubjectAttributes(const std::shared_ptr<Subject>& subject, const QString& table)
 {
     QSqlQuery query;
     auto attributes = subject->getAtr();
@@ -103,7 +203,7 @@ void DatabaseManager::saveSubjectAttributes(const std::shared_ptr<Subject>& subj
 }
 
 // "delete" tokens from DB -> set deleted true
-void DatabaseManager::setDeleted(const QString& id, const QString& table, quint64 time)
+void DatabaseAPI::setDeleted(const QString& id, const QString& table, quint64 time)
 {
     QSqlQuery query;
     QString nowString = QDateTime::fromMSecsSinceEpoch(time).toString("yyyy-MM-dd hh:mm:ss.zzz");
@@ -113,7 +213,7 @@ void DatabaseManager::setDeleted(const QString& id, const QString& table, quint6
     executeQuery(query);
 }
 
-bool DatabaseManager::checkIfExists(const QString& id, const QString& table)
+bool DatabaseAPI::checkIfExists(const QString& id, const QString& table)
 {
     QSqlQuery query;
     query.prepare(QString("SELECT EXISTS(SELECT 1 FROM %1 WHERE id = :id)").arg(table));
@@ -123,7 +223,7 @@ bool DatabaseManager::checkIfExists(const QString& id, const QString& table)
     return query.value(0).toBool();
 }
 
-QString DatabaseManager::getLastQuery(const QSqlQuery& query) const
+QString DatabaseAPI::getLastQuery(const QSqlQuery& query) const
 {
     QString str = query.lastQuery();
     QMapIterator<QString, QVariant> it(query.boundValues());
@@ -135,7 +235,7 @@ QString DatabaseManager::getLastQuery(const QSqlQuery& query) const
     return str;
 }
 
-bool DatabaseManager::executeQuery(QSqlQuery &query, const QString &statement)
+bool DatabaseAPI::executeQuery(QSqlQuery &query, const QString &statement)
 {
     if (statement.isEmpty()){
         if (dryMode){
@@ -164,7 +264,7 @@ bool DatabaseManager::executeQuery(QSqlQuery &query, const QString &statement)
     return true;
 }
 
-void DatabaseManager::dropTables()
+void DatabaseAPI::dropTables()
 {
     QSqlQuery query;
 
@@ -172,7 +272,7 @@ void DatabaseManager::dropTables()
 }
 
 // create table after deleting, it is used for full sync
-void DatabaseManager::createTables()
+void DatabaseAPI::createTables()
 {
     QSqlQuery query;
 
@@ -206,36 +306,14 @@ void DatabaseManager::createTables()
                         "subject_id CHAR(36))");
 }
 
-// return last_sync time
-quint64 DatabaseManager::getLastSync()
-{
-    QSqlQuery query;
-    executeQuery(query, "SELECT last_sync FROM config");
-    query.next();
-    quint64 temp = query.value(0).toULongLong();
-    return temp;
-}
 
 // on the very end of sync set new Last_sync time (begin of this sync)
-void DatabaseManager::updateLastSync(quint64 lastSync)
-{
-    QSqlQuery query;
-    query.prepare("UPDATE config SET last_sync = :last_sync");
-    query.bindValue(":last_sync", lastSync);
-    executeQuery(query);
-}
+
 
 
 // return set of tokens to update form DB
-QSqlQuery DatabaseManager::getUpdatedTokens()
-{
-    QSqlQuery query;
-    executeQuery(query, "SELECT id, auth_errors, description, enabled, last_update, name, no_validity, time_to_live, token_bits, token_data, token_type, subject_id, last_modified, deleted "
-                        "FROM colnod_token WHERE EXTRACT(EPOCH FROM last_modified) * 1000 > EXTRACT(EPOCH FROM last_update) * 1000");
-    return query;
-}
 
-QSqlQuery DatabaseManager::getToken(const QString& id)
+QSqlQuery DatabaseAPI::getToken(const QString& id)
 {
     QSqlQuery query;
     query.prepare("SELECT id, auth_errors, description, enabled, last_update, name, no_validity, time_to_live, token_bits, token_data, token_type, subject_id, last_modified, deleted "
@@ -246,16 +324,10 @@ QSqlQuery DatabaseManager::getToken(const QString& id)
     return query;
 }
 
-quint64 DatabaseManager::getNow()
-{
-    QSqlQuery query;
-    executeQuery(query, "SELECT EXTRACT(EPOCH FROM NOW())*1000");
-    query.next();
-    return query.value(0).toULongLong();
-}
+
 
 // sync last update back to DB from Colnod after changes made to Colnod
-void DatabaseManager::setLastUpdate(const QString& id, quint64 lastUpdate)
+void DatabaseAPI::setLastUpdate(const QString& id, quint64 lastUpdate)
 {
     QSqlQuery query;
     QString lsatUpdateString = QDateTime::fromMSecsSinceEpoch(lastUpdate).toString("yyyy-MM-dd hh:mm:ss.zzz");
@@ -265,7 +337,7 @@ void DatabaseManager::setLastUpdate(const QString& id, quint64 lastUpdate)
     executeQuery(query);
 }
 
-void DatabaseManager::log(const QString &msg)
+void DatabaseAPI::log(const QString &msg)
 {
     QSqlQuery query;
     query.prepare("INSERT INTO logs (log_time, msg) VALUES (NOW(), :msg)");
@@ -273,7 +345,7 @@ void DatabaseManager::log(const QString &msg)
     query.exec();
 }
 
-QString DatabaseManager::getSubjectNameByTokenId(const QString &tokenId)
+QString DatabaseAPI::getSubjectNameByTokenId(const QString &tokenId)
 {
     QSqlQuery query;
     query.prepare("SELECT name FROM colnod_subject WHERE id = (SELECT subject_id FROM colnod_token WHERE id = :tokenId)");
@@ -285,7 +357,7 @@ QString DatabaseManager::getSubjectNameByTokenId(const QString &tokenId)
     return "(No subject)";
 }
 
-QString DatabaseManager::getSubjectNameById(const QString &id)
+QString DatabaseAPI::getSubjectNameById(const QString &id)
 {
     QSqlQuery query;
     query.prepare("SELECT name FROM colnod_subject WHERE id = :id");
@@ -297,7 +369,7 @@ QString DatabaseManager::getSubjectNameById(const QString &id)
     return "(No subject)";
 }
 
-bool DatabaseManager::checkDeletedToken(const QString &id)
+bool DatabaseAPI::checkDeletedToken(const QString &id)
 {
     QSqlQuery query;
     query.prepare("SELECT deleted FROM colnod_token WHERE id = :id");
@@ -307,7 +379,7 @@ bool DatabaseManager::checkDeletedToken(const QString &id)
     return query.value(0).toBool();
 }
 
-qint16 DatabaseManager::getNumOfTokensOfSubject(const QString &id)
+qint16 DatabaseAPI::getNumOfTokensOfSubject(const QString &id)
 {
     QSqlQuery query;
     query.prepare("SELECT 1 FROM colnod_token WHERE subject_id = :id AND deleted = false");
@@ -316,7 +388,7 @@ qint16 DatabaseManager::getNumOfTokensOfSubject(const QString &id)
     return static_cast<qint16>(query.size());
 }
 
-bool DatabaseManager::isOpen()
+bool DatabaseAPI::isOpen()
 {
     return opened;
 }
diff --git a/src/colnod/databasemanager.h b/src/colnod/databaseapi.h
similarity index 64%
rename from src/colnod/databasemanager.h
rename to src/colnod/databaseapi.h
index 74fc989..605000b 100644
--- a/src/colnod/databasemanager.h
+++ b/src/colnod/databaseapi.h
@@ -10,13 +10,47 @@
 #include "subject.h"
 #include "token.h"
 #include <QDateTime>
+#include "data.h"
+#include "serversdk/databasemanager.h"
+#include "serversdk/databasetable.h"
 
 
-class DatabaseManager : public QObject
+
+class TokenTable : public serversdk::DatabaseTable {
+    Q_OBJECT
+};
+
+class DatabaseAPI : public QObject
 {
     Q_OBJECT
 public:
-    DatabaseManager(const QString& host, const QString& dbName, const QString& user, const QString& password, const bool& dryMode = false);
+    DatabaseAPI(serversdk::DatabaseManager *dbMan);
+
+    void downloadData();
+    qint64 getLastSync();
+    void setLastSync(qint64 timestamp);
+    qint64 getNow();
+
+private:
+    QSqlQuery getUpdatedTokens();
+    std::shared_ptr<Data> composeData(QSqlQuery updatedQuery, QSqlQuery deletedQuery);
+
+signals:
+    void downloadDataFinished(std::shared_ptr<Data> = std::shared_ptr<Data>());
+
+
+
+private:
+    serversdk::DatabaseManager *mDbMan = nullptr;
+
+
+
+
+
+
+
+    // old
+    DatabaseAPI(const QString& host, const QString& dbName, const QString& user, const QString& password, const bool& dryMode = false);
 
     int saveSubject(const std::shared_ptr<Subject>& subject, const QString& table);
     int saveToken(const std::shared_ptr<Token>& token, const QString& table);
@@ -26,11 +60,8 @@ public:
     void dropTables();
     void createTables();
 
-    quint64 getLastSync();
     void updateLastSync(quint64 lastSync);
-    quint64 getNow();
 
-    QSqlQuery getUpdatedTokens();
     QSqlQuery getToken(const QString& id);
 
     void setLastUpdate(const QString& id, quint64 lastUpdate);
diff --git a/src/colnod/datamanager.cpp b/src/colnod/datamanager.cpp
index 7a0dd6b..38cea70 100644
--- a/src/colnod/datamanager.cpp
+++ b/src/colnod/datamanager.cpp
@@ -1,7 +1,7 @@
 #include "datamanager.h"
 
 DataManager::DataManager(const bool &dryMode) :
-    db(std::make_shared<DatabaseManager>("192.168.1.94", "deloitte", "postgres", "34rjkciea12", dryMode)),
+    db(std::make_shared<DatabaseAPI>("192.168.1.94", "deloitte", "postgres", "34rjkciea12", dryMode)),
     dryMode(dryMode)
 {
     if (db->isOpen()){
@@ -9,7 +9,7 @@ DataManager::DataManager(const bool &dryMode) :
         nextLastSync = db->getNow();
         lastSync = db->getLastSync();
     }
-    connect(db.get(), &DatabaseManager::error, this, &DataManager::error, Qt::QueuedConnection);
+    connect(db.get(), &DatabaseAPI::error, this, &DataManager::error, Qt::QueuedConnection);
 }
 
 // load all tokens from colnod to comparing with working set from DB
diff --git a/src/colnod/datamanager.h b/src/colnod/datamanager.h
index 1793cf8..825add4 100644
--- a/src/colnod/datamanager.h
+++ b/src/colnod/datamanager.h
@@ -3,7 +3,7 @@
 #include "token.h"
 #include "subject.h"
 #include "requestmanager.h"
-#include "databasemanager.h"
+#include "databaseapi.h"
 #include <QJsonDocument>
 #include <qjsonarray.h>
 #include <logger.h>
@@ -63,7 +63,7 @@ signals:
     void error();
 
 private:
-    std::shared_ptr<DatabaseManager> db;
+    std::shared_ptr<DatabaseAPI> db;
 
     quint64 lastSync;       // time of last run
     quint64 nextLastSync;   // time of begin of this run
diff --git a/src/colnod/logger.cpp b/src/colnod/logger.cpp
index 4c46c73..48160a0 100644
--- a/src/colnod/logger.cpp
+++ b/src/colnod/logger.cpp
@@ -1,9 +1,9 @@
 #include "logger.h"
-#include "databasemanager.h"
+#include "databaseapi.h"
 
 #include <utility>
 
-std::shared_ptr<DatabaseManager> Logger::dbMan = nullptr;
+std::shared_ptr<DatabaseAPI> Logger::dbMan = nullptr;
 Logger *Logger::logger = nullptr;
 
 Logger::Logger()
@@ -29,7 +29,7 @@ void Logger::logToDb(const QString &msg)
         Logger::dbMan->log(msg);
 }
 
-void Logger::setDBMan(std::shared_ptr<DatabaseManager> dbMan)
+void Logger::setDBMan(std::shared_ptr<DatabaseAPI> dbMan)
 {
     Logger::dbMan = std::move(dbMan);
 }
diff --git a/src/colnod/logger.h b/src/colnod/logger.h
index cedd633..e8b7fb5 100644
--- a/src/colnod/logger.h
+++ b/src/colnod/logger.h
@@ -5,7 +5,7 @@
 #include <QSqlDatabase>
 #include <memory>
 
-class DatabaseManager;
+class DatabaseAPI;
 
 
 class Logger
@@ -15,13 +15,13 @@ class Logger
 
     Logger();
 
-    static std::shared_ptr<DatabaseManager> dbMan;
+    static std::shared_ptr<DatabaseAPI> dbMan;
 
 public:
     static Logger *getLogger();
     static void log(const QString& msg);
     static void logToDb(const QString& msg);
-    static void setDBMan(std::shared_ptr<DatabaseManager> dbMan);
+    static void setDBMan(std::shared_ptr<DatabaseAPI> dbMan);
     static QString makeTokenMsg(const QString& tokenId, const QString& action, const QString& source);
     static QString makeSubjectMsg(const QString& subjectId, const QString& action, const QString& source);
     static QString makeErrorMsg(const QString& source, const QString& errMsg);
diff --git a/src/colnod/syncmanager.cpp b/src/colnod/syncmanager.cpp
index 1c72bd8..7609713 100644
--- a/src/colnod/syncmanager.cpp
+++ b/src/colnod/syncmanager.cpp
@@ -1,4 +1,132 @@
 #include "syncmanager.h"
+
+bool SyncManager::init()
+{
+    if (database.open() dbMan.openPostgres(QStringLiteral("192.168.1.94"), // move to databaseAPi
+                           QStringLiteral("deloitte"),
+                           QStringLiteral("postgres"),
+                           QStringLiteral("34rjkciea12"),
+                           QStringLiteral("postgres-connection"))){
+
+        mlastSync.set_timestamp(database.getLastSync());
+        // -1 --> some error with getting data from DB
+        if (mlastSync.timestamp() >= 0){
+            return true;
+        }
+    }
+    return false;
+}
+
+void SyncManager::run()
+{
+    qint64 syncBegin = database.getNow();
+    downloadData();
+    connect(this, &SyncManager::dataReady, [=](){
+        prepareData();
+        processData();
+        connect(this, &SyncManager::processDataFinished, [=](){
+            updateLastUpdate();  // get last_update from colnod after seting tokens TODO:
+            database.setLastSync(syncBegin);
+            QCoreApplication::exit();
+        });
+    });
+}
+
+
+
+
+void SyncManager::downloadData()
+{
+    colnod.downloadData();
+    connect(&colnod, &ColnodAPI::downloadDataFinished, this, &SyncManager::saveColnodData);
+    connect(&colnod, &ColnodAPI::downloadDataFinished, this, &SyncManager::areDataReady);
+    database.downloadData();
+    connect(&database, &DatabaseAPI::downloadDataFinished, this, &SyncManager::saveDatabaseData);
+    connect(&database, &DatabaseAPI::downloadDataFinished, this, &SyncManager::areDataReady);
+}
+
+// finds conflicts -> changes on both sides (colnod and DB), apply newer change
+void SyncManager::prepareData()
+{
+    colnodDataToProcess = std::make_shared<Data>(colnodData);
+    databaseDataToProcess = std::make_shared<Data>(databaseData);
+
+    QList<QUuid> idsToDelete;
+
+    for (const auto &colnodToken : colnodDataToProcess->updatedTokens) {
+        if (databaseDataToProcess->updatedTokens.contains(colnodToken.getId())) {
+            if (databaseDataToProcess->updatedTokens.value(colnodToken.getId()) > colnodToken)
+                idsToDelete.append(colnodToken.getId());
+        }
+    }
+    for (const auto &id : idsToDelete)
+        colnodDataToProcess->updatedTokens.remove(id);
+    idsToDelete.clear();
+
+    for (const auto &databaseToken : databaseDataToProcess->updatedTokens) {
+        if (colnodDataToProcess->updatedTokens.contains(databaseToken.getId())) {
+            if (databaseToken > colnodDataToProcess->updatedTokens.value(databaseToken.getId()))
+                idsToDelete.append(databaseToken.getId());
+        }
+    }
+    for (const auto &id : idsToDelete)
+        colnodDataToProcess->updatedTokens.remove(id);
+}
+
+void SyncManager::processData()
+{
+    // TODO:
+}
+
+void SyncManager::areDataReady()
+{
+    if (++dataAmount)
+        emit dataReady();
+}
+
+
+void SyncManager::saveColnodData(std::shared_ptr<Data> data)
+{
+    colnodData = data;
+}
+
+void SyncManager::saveDatabaseData(std::shared_ptr<Data> data)
+{
+    databaseData = data;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
 
 SyncManager::SyncManager(bool dryMode) :
     reqMan(std::make_unique<RequestManager>()),
@@ -199,7 +327,7 @@ bool SyncManager::isValid()
 void SyncManager::areChangedDataReady()
 {
     if (++dataCounter == 5)
-        emit dataDownloaded();
+        emit dataReady();
 }
 
 // emit signal when writing to Colnod is finised
diff --git a/src/colnod/syncmanager.h b/src/colnod/syncmanager.h
index 33a9df6..6e037fe 100644
--- a/src/colnod/syncmanager.h
+++ b/src/colnod/syncmanager.h
@@ -1,13 +1,66 @@
 #pragma once
 
+#include "colnodapi.h"
+#include "databaseapi.h"
 #include "requestmanager.h"
 #include "datamanager.h"
 #include "logger.h"
+#include "colnodapi.h"
+#include "serversdk/databasemanager.h"
 
 class SyncManager : public QObject
 {
     Q_OBJECT
 
+    // NEW
+public:
+    bool init();
+    void run();
+
+private:
+    void downloadData();
+    void prepareData();
+    void processData();
+
+
+
+private:
+    Q_SLOTS void saveColnodData(std::shared_ptr<Data> data);
+    Q_SLOTS void saveDatabaseData(std::shared_ptr<Data> data);
+    Q_SLOTS void areDataReady();
+
+signals:
+    void dataReady();
+    void processDataFinished();
+
+private:
+    ColnodAPI colnod;
+    DatabaseAPI database;
+    serversdk::RequestManager reqMan;
+    serversdk::DatabaseManager dbMan;
+    Timestamp mlastSync;
+
+    std::shared_ptr<Data> colnodData;
+    std::shared_ptr<Data> databaseData;
+
+    std::shared_ptr<Data> colnodDataToProcess;
+    std::shared_ptr<Data> databaseDataToProcess;
+
+    int dataAmount = 0;
+
+
+
+
+
+
+
+
+
+
+
+
+
+    // OLD
 public:
     explicit SyncManager(bool dryMode = false);
 
@@ -24,7 +77,7 @@ public slots:
     void loadDataFromDB();
 
 signals:
-    void dataDownloaded();
+    void dataReady();
     void dataUpdatedToColnod();
     void syncFinished();
     void error();
@@ -49,7 +102,7 @@ private:
     void areDataUpdatedToColnod();
 
 private:
-    std::unique_ptr<RequestManager> reqMan;
+   // std::unique_ptr<RequestManager> reqMan;
     std::unique_ptr<DataManager> dataMan;
     bool dryMode = false;
     bool updateFinished = false;
diff --git a/src/colnod/token.cpp b/src/colnod/token.cpp
index ff3b573..2a7ad47 100644
--- a/src/colnod/token.cpp
+++ b/src/colnod/token.cpp
@@ -1,6 +1,7 @@
 #include "token.h"
 
 #include <QJsonArray>
+#include <qjsondocument.h>
 #include <utility>
 
 
@@ -52,6 +53,20 @@ QJsonObject Token::toJSON() const {
     return json;
 }
 
+QByteArray Token::tokensToJSON(const QHash<QUuid, Token> &tokens)
+{
+    QJsonObject items;
+    QJsonArray jsonTokens;
+    for (const auto& token : tokens)
+    {
+        jsonTokens.push_back(token.toJSON());
+    }
+    items.insert("items", jsonTokens);
+    QJsonDocument doc;
+    doc.setObject(items);
+    return doc.toJson();
+}
+
 void Token::fromSQLRecord(const QSqlQuery& query)
 {
     setId(query.value(0).toUuid());
diff --git a/src/colnod/token.h b/src/colnod/token.h
index 9d49cbf..2e3261b 100644
--- a/src/colnod/token.h
+++ b/src/colnod/token.h
@@ -69,6 +69,8 @@ public:
     void fromJSON(const QJsonObject &json) override;
     QJsonObject toJSON() const override;
 
+    static QByteArray tokensToJSON(const QHash<QUuid, Token> &tokens);
+
 private:
     QString tokenType = "Token";
     int tokenBits = 32;
diff --git a/test/unitTests/unittest.h b/test/unitTests/unittest.h
index 70c522e..c74c27a 100644
--- a/test/unitTests/unittest.h
+++ b/test/unitTests/unittest.h
@@ -5,7 +5,7 @@
 #include <QSignalSpy>
 #include <requestmanager.h>
 #include "subject.h"
-#include "databasemanager.h"
+#include "databaseapi.h"
 #include <QSslSocket>
 #include "datamanager.h"
 #include "response.h"