diff --git a/.vscode/launch.json b/.vscode/launch.json
index 4f79b0d..625fb81 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -11,7 +11,7 @@
             "mode": "auto",
             "program": "${workspaceFolder}/main.go",
             "args": [
-                "channels"
+                "login"
             ]
         }
     ]
diff --git a/exporter b/exporter
new file mode 100755
index 0000000..3fc6230
Binary files /dev/null and b/exporter differ
diff --git a/internal/client.go b/internal/client.go
index cf3a536..93763bb 100644
--- a/internal/client.go
+++ b/internal/client.go
@@ -30,9 +30,10 @@ type TClient struct {
 // 	t.block <- struct{}{}
 // }
 
-func NewClient(config *config.Config) *TClient {
+func NewClient(logger *zap.Logger, config *config.Config) *TClient {
 	c := &TClient{
 		Config: config,
+		logger: logger,
 		Client: telegram.NewClient(config.AppID, config.AppHash, telegram.Options{
 			Logger:        logger,
 			UpdateHandler: nil,
@@ -50,28 +51,8 @@ func (t *TClient) WithMedia() *TClient {
 	return t
 }
 
-// func (t *TClient) Run(ctx context.Context) {
-// 	err := t.Client.Run(ctx, func(ctx context.Context) error {
-// 		flow := auth.NewFlow(Terminal{PhoneNumber: t.Config.Phone}, auth.SendCodeOptions{})
-// 		if err := t.Client.Auth().IfNecessary(ctx, flow); err != nil {
-// 			return errors.Wrap(err, "auth")
-// 		}
-// 		t.api = t.Client.API()
-
-// 		t.waitLogin <- nil
-// 		<-t.block
-// 		return nil
-// 	})
-// 	if err != nil {
-// 		t.waitLogin <- err
-// 	}
-// }
-
-// func (t *TClient) Wait() <-chan error {
-// 	return t.waitLogin
-// }
-
 func (t *TClient) Login(ctx context.Context) error {
+	t.logger.Info("login phone", zap.String("phone", t.Config.Phone))
 	flow := auth.NewFlow(Terminal{PhoneNumber: client.Config.Phone}, auth.SendCodeOptions{})
 	if err := t.Client.Auth().IfNecessary(context.Background(), flow); err != nil {
 		return errors.Wrap(err, "auth")
diff --git a/internal/client_channel.go b/internal/client_channel.go
index 425c465..7ba9db1 100644
--- a/internal/client_channel.go
+++ b/internal/client_channel.go
@@ -2,7 +2,9 @@ package internal
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
+	"os"
 	"path/filepath"
 
 	"github.com/gotd/td/telegram/downloader"
@@ -64,3 +66,33 @@ func (t *TClient) Channel(ctx context.Context, channel *tg.Channel, offset int)
 
 	return nil
 }
+
+type ChannelConfig struct {
+	ID     int64 `json:"id"`
+	Offset int   `json:"offset"`
+}
+
+func (t *TClient) SaveChannelConfig(ctx context.Context, channelID int64, offset int) (*ChannelConfig, error) {
+	channelConfigFile := fmt.Sprintf("outputs/%d/config.json", channelID)
+	// if file not exists then create it
+	if _, err := os.Stat(channelConfigFile); os.IsNotExist(err) {
+		// create config file
+		data, _ := json.Marshal(&ChannelConfig{ID: channelID})
+		if err := os.WriteFile(channelConfigFile, data, 0o644); err != nil {
+			return nil, errors.Wrap(err, "write channel config")
+		}
+	}
+
+	// read config file
+	data, err := os.ReadFile(channelConfigFile)
+	if err != nil {
+		return nil, errors.Wrap(err, "read channel config")
+	}
+
+	var config *ChannelConfig
+	if err := json.Unmarshal(data, config); err != nil {
+		return nil, errors.Wrap(err, "unmarshal channel config")
+	}
+
+	return config, nil
+}
diff --git a/internal/cmd_export.go b/internal/cmd_export.go
index eefec1c..c8479a3 100644
--- a/internal/cmd_export.go
+++ b/internal/cmd_export.go
@@ -19,31 +19,7 @@ func ExportCmd() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "export",
 		Short: "export channels",
-		RunE: wrapE(func(ctx context.Context) error {
-			if channelID == 0 && channelAlias == "" {
-				return errors.New("channel id or alias is required")
-			}
-
-			var channel *tg.Channel
-			var err error
-			if channelAlias != "" {
-				channel, err = client.ChannelInfoByAlias(ctx, channelAlias)
-				if err != nil {
-					return err
-				}
-			} else {
-				channel, err = client.ChannelInfoByID(ctx, channelID)
-				if err != nil {
-					return err
-				}
-			}
-
-			if downloadMedia {
-				client.WithMedia()
-			}
-
-			return client.Channel(ctx, channel, offsetID)
-		}),
+		RunE:  wrapE(exportCmd),
 	}
 
 	cmd.Flags().Int64Var(&channelID, "channel", 0, "channel id")
@@ -53,3 +29,35 @@ func ExportCmd() *cobra.Command {
 
 	return cmd
 }
+
+func exportCmd(ctx context.Context) error {
+	if channelID == 0 && channelAlias == "" {
+		return errors.New("channel id or alias is required")
+	}
+
+	var channel *tg.Channel
+	var err error
+	if channelAlias != "" {
+		channel, err = client.ChannelInfoByAlias(ctx, channelAlias)
+		if err != nil {
+			return err
+		}
+	} else {
+		channel, err = client.ChannelInfoByID(ctx, channelID)
+		if err != nil {
+			return err
+		}
+	}
+
+	if downloadMedia {
+		client.WithMedia()
+	}
+
+	cfg, err := client.SaveChannelConfig(ctx, channel.ID, offsetID)
+	if err != nil {
+		return err
+	}
+	return nil
+
+	return client.Channel(ctx, channel, cfg.Offset)
+}
diff --git a/internal/cmd_login.go b/internal/cmd_login.go
index 633b7f2..3366922 100644
--- a/internal/cmd_login.go
+++ b/internal/cmd_login.go
@@ -1,6 +1,8 @@
 package internal
 
 import (
+	"context"
+
 	"github.com/spf13/cobra"
 )
 
@@ -8,7 +10,9 @@ func LoginCmd() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "login",
 		Short: "login account",
-		RunE:  wrapE(client.Login),
+		RunE: wrapE(func(ctx context.Context) error {
+			return client.Login(ctx)
+		}),
 	}
 
 	return cmd
diff --git a/internal/common.go b/internal/common.go
index bc40d9c..995625e 100644
--- a/internal/common.go
+++ b/internal/common.go
@@ -30,7 +30,7 @@ func InitClient(cfg *config.Config) error {
 	)
 	logger = zap.New(logCore)
 
-	client = NewClient(cfg)
+	client = NewClient(logger, cfg)
 	return nil
 }
 
@@ -39,8 +39,12 @@ func Close() error {
 	return nil
 }
 
+func getClient() *TClient {
+	return client
+}
+
 func wrapE(f func(context.Context) error) func(cmd *cobra.Command, args []string) error {
 	return func(cmd *cobra.Command, args []string) error {
-		return client.Client.Run(context.Background(), f)
+		return getClient().Client.Run(context.Background(), f)
 	}
 }