MM-11781: Basic Data Export Command Line. (#9296)

* MM-11781: Basic Data Export Command Line.

* ChannelStore new unit tests.

* TeamStore new unit tests.

* Unit test for new UserStore function.

* Unit tests for post store new methods.

* Review fixes.

* Fix duplicate command name.

24 files changed, 1106 insertions, 46 deletions

diff --git a/app/export.go b/app/export.go
new file mode 100644
index 000000000..a7a78cfee
--- /dev/null
+++ b/app/export.go
@@ -0,0 +1,279 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package app
+
+import (
+	"encoding/json"
+	"io"
+	"net/http"
+	"strings"
+
+	"github.com/mattermost/mattermost-server/model"
+)
+
+func (a *App) BulkExport(writer io.Writer) *model.AppError {
+	if err := a.ExportVersion(writer); err != nil {
+		return err
+	}
+
+	if err := a.ExportAllTeams(writer); err != nil {
+		return err
+	}
+
+	if err := a.ExportAllChannels(writer); err != nil {
+		return err
+	}
+
+	if err := a.ExportAllUsers(writer); err != nil {
+		return err
+	}
+
+	if err := a.ExportAllPosts(writer); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (a *App) ExportWriteLine(writer io.Writer, line *LineImportData) *model.AppError {
+	b, err := json.Marshal(line)
+	if err != nil {
+		return model.NewAppError("BulkExport", "app.export.export_write_line.json_marshall.error", nil, "err="+err.Error(), http.StatusBadRequest)
+	}
+
+	if _, err := writer.Write(append(b, '\n')); err != nil {
+		return model.NewAppError("BulkExport", "app.export.export_write_line.io_writer.error", nil, "err="+err.Error(), http.StatusBadRequest)
+	}
+
+	return nil
+}
+
+func (a *App) ExportVersion(writer io.Writer) *model.AppError {
+	version := 1
+	versionLine := &LineImportData{
+		Type:    "version",
+		Version: &version,
+	}
+
+	return a.ExportWriteLine(writer, versionLine)
+}
+
+func (a *App) ExportAllTeams(writer io.Writer) *model.AppError {
+	afterId := strings.Repeat("0", 26)
+	for {
+		result := <-a.Srv.Store.Team().GetAllForExportAfter(1000, afterId)
+
+		if result.Err != nil {
+			return result.Err
+		}
+
+		teams := result.Data.([]*model.TeamForExport)
+
+		if len(teams) == 0 {
+			break
+		}
+
+		for _, team := range teams {
+			afterId = team.Id
+
+			// Skip deleted.
+			if team.DeleteAt != 0 {
+				continue
+			}
+
+			teamLine := ImportLineFromTeam(team)
+			if err := a.ExportWriteLine(writer, teamLine); err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+func (a *App) ExportAllChannels(writer io.Writer) *model.AppError {
+	afterId := strings.Repeat("0", 26)
+	for {
+		result := <-a.Srv.Store.Channel().GetAllChannelsForExportAfter(1000, afterId)
+
+		if result.Err != nil {
+			return result.Err
+		}
+
+		channels := result.Data.([]*model.ChannelForExport)
+
+		if len(channels) == 0 {
+			break
+		}
+
+		for _, channel := range channels {
+			afterId = channel.Id
+
+			// Skip deleted.
+			if channel.DeleteAt != 0 {
+				continue
+			}
+
+			channelLine := ImportLineFromChannel(channel)
+			if err := a.ExportWriteLine(writer, channelLine); err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+func (a *App) ExportAllUsers(writer io.Writer) *model.AppError {
+	afterId := strings.Repeat("0", 26)
+	for {
+		result := <-a.Srv.Store.User().GetAllAfter(1000, afterId)
+
+		if result.Err != nil {
+			return result.Err
+		}
+
+		users := result.Data.([]*model.User)
+
+		if len(users) == 0 {
+			break
+		}
+
+		for _, user := range users {
+			afterId = user.Id
+
+			// Skip deleted.
+			if user.DeleteAt != 0 {
+				continue
+			}
+
+			userLine := ImportLineFromUser(user)
+
+			// Do the Team Memberships.
+			members, err := a.buildUserTeamAndChannelMemberships(user.Id)
+			if err != nil {
+				return err
+			}
+
+			userLine.User.Teams = members
+
+			if err := a.ExportWriteLine(writer, userLine); err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+func (a *App) buildUserTeamAndChannelMemberships(userId string) (*[]UserTeamImportData, *model.AppError) {
+	var memberships []UserTeamImportData
+
+	result := <-a.Srv.Store.Team().GetTeamMembersForExport(userId)
+
+	if result.Err != nil {
+		return nil, result.Err
+	}
+
+	members := result.Data.([]*model.TeamMemberForExport)
+
+	for _, member := range members {
+		// Skip deleted.
+		if member.DeleteAt != 0 {
+			continue
+		}
+
+		memberData := ImportUserTeamDataFromTeamMember(member)
+
+		// Do the Channel Memberships.
+		channelMembers, err := a.buildUserChannelMemberships(userId, member.TeamId)
+		if err != nil {
+			return nil, err
+		}
+
+		memberData.Channels = channelMembers
+
+		memberships = append(memberships, *memberData)
+	}
+
+	return &memberships, nil
+}
+
+func (a *App) buildUserChannelMemberships(userId string, teamId string) (*[]UserChannelImportData, *model.AppError) {
+	var memberships []UserChannelImportData
+
+	result := <-a.Srv.Store.Channel().GetChannelMembersForExport(userId, teamId)
+
+	if result.Err != nil {
+		return nil, result.Err
+	}
+
+	members := result.Data.([]*model.ChannelMemberForExport)
+
+	for _, member := range members {
+		memberships = append(memberships, *ImportUserChannelDataFromChannelMember(member))
+	}
+
+	return &memberships, nil
+}
+
+func (a *App) ExportAllPosts(writer io.Writer) *model.AppError {
+	afterId := strings.Repeat("0", 26)
+	for {
+		result := <-a.Srv.Store.Post().GetParentsForExportAfter(1000, afterId)
+
+		if result.Err != nil {
+			return result.Err
+		}
+
+		posts := result.Data.([]*model.PostForExport)
+
+		if len(posts) == 0 {
+			break
+		}
+
+		for _, post := range posts {
+			afterId = post.Id
+
+			// Skip deleted.
+			if post.DeleteAt != 0 {
+				continue
+			}
+
+			postLine := ImportLineForPost(post)
+
+			// Do the Replies.
+			replies, err := a.buildPostReplies(post.Id)
+			if err != nil {
+				return err
+			}
+
+			postLine.Post.Replies = replies
+
+			if err := a.ExportWriteLine(writer, postLine); err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+func (a *App) buildPostReplies(postId string) (*[]ReplyImportData, *model.AppError) {
+	var replies []ReplyImportData
+
+	result := <-a.Srv.Store.Post().GetRepliesForExport(postId)
+
+	if result.Err != nil {
+		return nil, result.Err
+	}
+
+	replyPosts := result.Data.([]*model.ReplyForExport)
+
+	for _, reply := range replyPosts {
+		replies = append(replies, *ImportReplyFromPost(reply))
+	}
+
+	return &replies, nil
+}
diff --git a/app/export_converters.go b/app/export_converters.go
new file mode 100644
index 000000000..cafe360cb
--- /dev/null
+++ b/app/export_converters.go
@@ -0,0 +1,113 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package app
+
+import (
+	"github.com/mattermost/mattermost-server/model"
+	"strings"
+)
+
+func ImportLineFromTeam(team *model.TeamForExport) *LineImportData {
+	return &LineImportData{
+		Type: "team",
+		Team: &TeamImportData{
+			Name:            &team.Name,
+			DisplayName:     &team.DisplayName,
+			Type:            &team.Type,
+			Description:     &team.Description,
+			AllowOpenInvite: &team.AllowOpenInvite,
+			Scheme:          team.SchemeName,
+		},
+	}
+}
+
+func ImportLineFromChannel(channel *model.ChannelForExport) *LineImportData {
+	return &LineImportData{
+		Type: "channel",
+		Channel: &ChannelImportData{
+			Team:        &channel.TeamName,
+			Name:        &channel.Name,
+			DisplayName: &channel.DisplayName,
+			Type:        &channel.Type,
+			Header:      &channel.Header,
+			Purpose:     &channel.Purpose,
+			Scheme:      channel.SchemeName,
+		},
+	}
+}
+
+func ImportLineFromUser(user *model.User) *LineImportData {
+	// Bulk Importer doesn't accept "empty string" for AuthService.
+	var authService *string
+	if user.AuthService != "" {
+		authService = &user.AuthService
+	}
+
+	return &LineImportData{
+		Type: "user",
+		User: &UserImportData{
+			Username:    &user.Username,
+			Email:       &user.Email,
+			AuthService: authService,
+			AuthData:    user.AuthData,
+			Nickname:    &user.Nickname,
+			FirstName:   &user.FirstName,
+			LastName:    &user.LastName,
+			Position:    &user.Position,
+			Roles:       &user.Roles,
+			Locale:      &user.Locale,
+		},
+	}
+}
+
+func ImportUserTeamDataFromTeamMember(member *model.TeamMemberForExport) *UserTeamImportData {
+	rolesList := strings.Fields(member.Roles)
+	if member.SchemeAdmin {
+		rolesList = append(rolesList, model.TEAM_ADMIN_ROLE_ID)
+	}
+	if member.SchemeUser {
+		rolesList = append(rolesList, model.TEAM_USER_ROLE_ID)
+	}
+	roles := strings.Join(rolesList, " ")
+	return &UserTeamImportData{
+		Name:  &member.TeamName,
+		Roles: &roles,
+	}
+}
+
+func ImportUserChannelDataFromChannelMember(member *model.ChannelMemberForExport) *UserChannelImportData {
+	rolesList := strings.Fields(member.Roles)
+	if member.SchemeAdmin {
+		rolesList = append(rolesList, model.CHANNEL_ADMIN_ROLE_ID)
+	}
+	if member.SchemeUser {
+		rolesList = append(rolesList, model.CHANNEL_USER_ROLE_ID)
+	}
+	roles := strings.Join(rolesList, " ")
+	return &UserChannelImportData{
+		Name:  &member.ChannelName,
+		Roles: &roles,
+	}
+}
+
+func ImportLineForPost(post *model.PostForExport) *LineImportData {
+	return &LineImportData{
+		Type: "post",
+		Post: &PostImportData{
+			Team:     &post.TeamName,
+			Channel:  &post.ChannelName,
+			User:     &post.Username,
+			Message:  &post.Message,
+			CreateAt: &post.CreateAt,
+		},
+	}
+}
+
+func ImportReplyFromPost(post *model.ReplyForExport) *ReplyImportData {
+	return &ReplyImportData{
+		User:     &post.Username,
+		Message:  &post.Message,
+		CreateAt: &post.CreateAt,
+	}
+}
diff --git a/app/import_types.go b/app/import_types.go
index 168d43bab..1a2e44018 100644
--- a/app/import_types.go
+++ b/app/import_types.go
@@ -9,24 +9,24 @@ import "github.com/mattermost/mattermost-server/model"
 
 type LineImportData struct {
 	Type          string                   `json:"type"`
-	Scheme        *SchemeImportData        `json:"scheme"`
-	Team          *TeamImportData          `json:"team"`
-	Channel       *ChannelImportData       `json:"channel"`
-	User          *UserImportData          `json:"user"`
-	Post          *PostImportData          `json:"post"`
-	DirectChannel *DirectChannelImportData `json:"direct_channel"`
-	DirectPost    *DirectPostImportData    `json:"direct_post"`
-	Emoji         *EmojiImportData         `json:"emoji"`
-	Version       *int                     `json:"version"`
+	Scheme        *SchemeImportData        `json:"scheme,omitempty"`
+	Team          *TeamImportData          `json:"team,omitempty"`
+	Channel       *ChannelImportData       `json:"channel,omitempty"`
+	User          *UserImportData          `json:"user,omitempty"`
+	Post          *PostImportData          `json:"post,omitempty"`
+	DirectChannel *DirectChannelImportData `json:"direct_channel,omitempty"`
+	DirectPost    *DirectPostImportData    `json:"direct_post,omitempty"`
+	Emoji         *EmojiImportData         `json:"emoji,omitempty"`
+	Version       *int                     `json:"version,omitempty"`
 }
 
 type TeamImportData struct {
 	Name            *string `json:"name"`
 	DisplayName     *string `json:"display_name"`
 	Type            *string `json:"type"`
-	Description     *string `json:"description"`
-	AllowOpenInvite *bool   `json:"allow_open_invite"`
-	Scheme          *string `json:"scheme"`
+	Description     *string `json:"description,omitempty"`
+	AllowOpenInvite *bool   `json:"allow_open_invite,omitempty"`
+	Scheme          *string `json:"scheme,omitempty"`
 }
 
 type ChannelImportData struct {
@@ -34,38 +34,38 @@ type ChannelImportData struct {
 	Name        *string `json:"name"`
 	DisplayName *string `json:"display_name"`
 	Type        *string `json:"type"`
-	Header      *string `json:"header"`
-	Purpose     *string `json:"purpose"`
-	Scheme      *string `json:"scheme"`
+	Header      *string `json:"header,omitempty"`
+	Purpose     *string `json:"purpose,omitempty"`
+	Scheme      *string `json:"scheme,omitempty"`
 }
 
 type UserImportData struct {
-	ProfileImage       *string `json:"profile_image"`
+	ProfileImage       *string `json:"profile_image,omitempty"`
 	Username           *string `json:"username"`
 	Email              *string `json:"email"`
 	AuthService        *string `json:"auth_service"`
-	AuthData           *string `json:"auth_data"`
-	Password           *string `json:"password"`
+	AuthData           *string `json:"auth_data,omitempty"`
+	Password           *string `json:"password,omitempty"`
 	Nickname           *string `json:"nickname"`
 	FirstName          *string `json:"first_name"`
 	LastName           *string `json:"last_name"`
 	Position           *string `json:"position"`
 	Roles              *string `json:"roles"`
 	Locale             *string `json:"locale"`
-	UseMarkdownPreview *string `json:"feature_enabled_markdown_preview"`
-	UseFormatting      *string `json:"formatting"`
-	ShowUnreadSection  *string `json:"show_unread_section"`
+	UseMarkdownPreview *string `json:"feature_enabled_markdown_preview,omitempty"`
+	UseFormatting      *string `json:"formatting,omitempty"`
+	ShowUnreadSection  *string `json:"show_unread_section,omitempty"`
 
-	Teams *[]UserTeamImportData `json:"teams"`
+	Teams *[]UserTeamImportData `json:"teams,omitempty"`
 
-	Theme              *string `json:"theme"`
-	UseMilitaryTime    *string `json:"military_time"`
-	CollapsePreviews   *string `json:"link_previews"`
-	MessageDisplay     *string `json:"message_display"`
-	ChannelDisplayMode *string `json:"channel_display_mode"`
-	TutorialStep       *string `json:"tutorial_step"`
+	Theme              *string `json:"theme,omitempty"`
+	UseMilitaryTime    *string `json:"military_time,omitempty"`
+	CollapsePreviews   *string `json:"link_previews,omitempty"`
+	MessageDisplay     *string `json:"message_display,omitempty"`
+	ChannelDisplayMode *string `json:"channel_display_mode,omitempty"`
+	TutorialStep       *string `json:"tutorial_step,omitempty"`
 
-	NotifyProps *UserNotifyPropsImportData `json:"notify_props"`
+	NotifyProps *UserNotifyPropsImportData `json:"notify_props,omitempty"`
 }
 
 type UserNotifyPropsImportData struct {
@@ -85,15 +85,15 @@ type UserNotifyPropsImportData struct {
 type UserTeamImportData struct {
 	Name     *string                  `json:"name"`
 	Roles    *string                  `json:"roles"`
-	Theme    *string                  `json:"theme"`
-	Channels *[]UserChannelImportData `json:"channels"`
+	Theme    *string                  `json:"theme,omitempty"`
+	Channels *[]UserChannelImportData `json:"channels,omitempty"`
 }
 
 type UserChannelImportData struct {
 	Name        *string                           `json:"name"`
 	Roles       *string                           `json:"roles"`
-	NotifyProps *UserChannelNotifyPropsImportData `json:"notify_props"`
-	Favorite    *bool                             `json:"favorite"`
+	NotifyProps *UserChannelNotifyPropsImportData `json:"notify_props,omitempty"`
+	Favorite    *bool                             `json:"favorite,omitempty"`
 }
 
 type UserChannelNotifyPropsImportData struct {
@@ -119,9 +119,9 @@ type ReplyImportData struct {
 	Message  *string `json:"message"`
 	CreateAt *int64  `json:"create_at"`
 
-	FlaggedBy   *[]string               `json:"flagged_by"`
-	Reactions   *[]ReactionImportData   `json:"reactions"`
-	Attachments *[]AttachmentImportData `json:"attachments"`
+	FlaggedBy   *[]string               `json:"flagged_by,omitempty"`
+	Reactions   *[]ReactionImportData   `json:"reactions,omitempty"`
+	Attachments *[]AttachmentImportData `json:"attachments,omitempty"`
 }
 
 type PostImportData struct {
@@ -132,10 +132,10 @@ type PostImportData struct {
 	Message  *string `json:"message"`
 	CreateAt *int64  `json:"create_at"`
 
-	FlaggedBy   *[]string               `json:"flagged_by"`
-	Reactions   *[]ReactionImportData   `json:"reactions"`
-	Replies     *[]ReplyImportData      `json:"replies"`
-	Attachments *[]AttachmentImportData `json:"attachments"`
+	FlaggedBy   *[]string               `json:"flagged_by,omitempty"`
+	Reactions   *[]ReactionImportData   `json:"reactions,omitempty"`
+	Replies     *[]ReplyImportData      `json:"replies,omitempty"`
+	Attachments *[]AttachmentImportData `json:"attachments,omitempty"`
 }
 
 type DirectChannelImportData struct {
diff --git a/cmd/mattermost/commands/message_export.go b/cmd/mattermost/commands/export.go
index 953d4ccba..bd311e154 100644
--- a/cmd/mattermost/commands/message_export.go
+++ b/cmd/mattermost/commands/export.go
@@ -5,6 +5,7 @@ package commands
 
 import (
 	"errors"
+	"os"
 
 	"context"
 
@@ -14,10 +15,10 @@ import (
 	"github.com/spf13/cobra"
 )
 
-var MessageExportCmd = &cobra.Command{
+var ExportCmd = &cobra.Command{
 	Use:   "export",
 	Short: "Export data from Mattermost",
-	Long:  "Export data from Mattermost in a format suitable for import into a third-party application",
+	Long:  "Export data from Mattermost in a format suitable for import into a third-party application or another Mattermost instance",
 }
 
 var ScheduleExportCmd = &cobra.Command{
@@ -44,16 +45,31 @@ var ActianceExportCmd = &cobra.Command{
 	RunE:    buildExportCmdF("actiance"),
 }
 
+var BulkExportCmd = &cobra.Command{
+	Use:     "bulk [file]",
+	Short:   "Export bulk data.",
+	Long:    "Export data to a file compatible with the Mattermost Bulk Import format.",
+	Example: "  export bulk bulk_data.json",
+	RunE:    bulkExportCmdF,
+}
+
 func init() {
 	ScheduleExportCmd.Flags().String("format", "actiance", "The format to export data")
 	ScheduleExportCmd.Flags().Int64("exportFrom", -1, "The timestamp of the earliest post to export, expressed in seconds since the unix epoch.")
 	ScheduleExportCmd.Flags().Int("timeoutSeconds", -1, "The maximum number of seconds to wait for the job to complete before timing out.")
+
 	CsvExportCmd.Flags().Int64("exportFrom", -1, "The timestamp of the earliest post to export, expressed in seconds since the unix epoch.")
+
 	ActianceExportCmd.Flags().Int64("exportFrom", -1, "The timestamp of the earliest post to export, expressed in seconds since the unix epoch.")
-	MessageExportCmd.AddCommand(ScheduleExportCmd)
-	MessageExportCmd.AddCommand(CsvExportCmd)
-	MessageExportCmd.AddCommand(ActianceExportCmd)
-	RootCmd.AddCommand(MessageExportCmd)
+
+	BulkExportCmd.Flags().Bool("all-teams", false, "Export all teams from the server.")
+
+	ExportCmd.AddCommand(ScheduleExportCmd)
+	ExportCmd.AddCommand(CsvExportCmd)
+	ExportCmd.AddCommand(ActianceExportCmd)
+	ExportCmd.AddCommand(BulkExportCmd)
+
+	RootCmd.AddCommand(ExportCmd)
 }
 
 func scheduleExportCmdF(command *cobra.Command, args []string) error {
@@ -140,3 +156,33 @@ func buildExportCmdF(format string) func(command *cobra.Command, args []string)
 		return nil
 	}
 }
+
+func bulkExportCmdF(command *cobra.Command, args []string) error {
+	a, err := InitDBCommandContextCobra(command)
+	if err != nil {
+		return err
+	}
+	defer a.Shutdown()
+
+	allTeams, err := command.Flags().GetBool("all-teams")
+	if err != nil {
+		return errors.New("Apply flag error")
+	}
+
+	if !allTeams {
+		return errors.New("Nothing to export. Please specify the --all-teams flag to export all teams.")
+	}
+
+	fileWriter, err := os.Create(args[0])
+	if err != nil {
+		return err
+	}
+	defer fileWriter.Close()
+
+	if err := a.BulkExport(fileWriter); err != nil {
+		CommandPrettyPrintln(err.Error())
+		return err
+	}
+
+	return nil
+}
diff --git a/cmd/mattermost/commands/message_export_test.go b/cmd/mattermost/commands/export_test.go
index 89ef45a6a..89ef45a6a 100644
--- a/cmd/mattermost/commands/message_export_test.go
+++ b/cmd/mattermost/commands/export_test.go
diff --git a/i18n/en.json b/i18n/en.json
index 0e1bdcf21..1f25c6b05 100644
--- a/i18n/en.json
+++ b/i18n/en.json
@@ -180,6 +180,14 @@
     "translation": "You're the only member left, try removing the Private Channel instead of leaving."
   },
   {
+    "id": "app.export.export_write_line.json_marshall.error",
+    "translation": "An error occured marshalling the JSON data for export."
+  },
+  {
+    "id": "app.export.export_write_line.io_writer.error",
+    "translation": "An error occurred writing the export data."
+  },
+  {
     "id": "api.channel.leave.left",
     "translation": "%v left the channel."
   },
diff --git a/model/channel.go b/model/channel.go
index 09e5e389c..529c49d35 100644
--- a/model/channel.go
+++ b/model/channel.go
@@ -57,6 +57,12 @@ type ChannelPatch struct {
 	Purpose     *string `json:"purpose"`
 }
 
+type ChannelForExport struct {
+	Channel
+	TeamName   string
+	SchemeName *string
+}
+
 func (o *Channel) DeepCopy() *Channel {
 	copy := *o
 	if copy.SchemeId != nil {
diff --git a/model/channel_member.go b/model/channel_member.go
index 709ad3ccd..941db62f7 100644
--- a/model/channel_member.go
+++ b/model/channel_member.go
@@ -43,6 +43,11 @@ type ChannelMember struct {
 
 type ChannelMembers []ChannelMember
 
+type ChannelMemberForExport struct {
+	ChannelMember
+	ChannelName string
+}
+
 func (o *ChannelMembers) ToJson() string {
 	if b, err := json.Marshal(o); err != nil {
 		return "[]"
diff --git a/model/post.go b/model/post.go
index d903156eb..0df698279 100644
--- a/model/post.go
+++ b/model/post.go
@@ -110,6 +110,19 @@ func (o *PostPatch) WithRewrittenImageURLs(f func(string) string) *PostPatch {
 	return &copy
 }
 
+type PostForExport struct {
+	Post
+	TeamName    string
+	ChannelName string
+	Username    string
+	ReplyCount  int
+}
+
+type ReplyForExport struct {
+	Post
+	Username string
+}
+
 type PostForIndexing struct {
 	Post
 	TeamId         string `json:"team_id"`
diff --git a/model/team.go b/model/team.go
index 530c3fd6a..eadd05225 100644
--- a/model/team.go
+++ b/model/team.go
@@ -52,6 +52,11 @@ type TeamPatch struct {
 	AllowOpenInvite *bool   `json:"allow_open_invite"`
 }
 
+type TeamForExport struct {
+	Team
+	SchemeName *string
+}
+
 type Invites struct {
 	Invites []map[string]string `json:"invites"`
 }
diff --git a/model/team_member.go b/model/team_member.go
index 0bda96121..3bae3d7e9 100644
--- a/model/team_member.go
+++ b/model/team_member.go
@@ -26,6 +26,11 @@ type TeamUnread struct {
 	MentionCount int64  `json:"mention_count"`
 }
 
+type TeamMemberForExport struct {
+	TeamMember
+	TeamName string
+}
+
 func (o *TeamMember) ToJson() string {
 	b, _ := json.Marshal(o)
 	return string(b)
diff --git a/store/sqlstore/channel_store.go b/store/sqlstore/channel_store.go
index 4103980c5..c0c1d2c8a 100644
--- a/store/sqlstore/channel_store.go
+++ b/store/sqlstore/channel_store.go
@@ -2016,3 +2016,57 @@ func (s SqlChannelStore) IsExperimentalPublicChannelsMaterializationEnabled() bo
 	// See SqlChannelStoreExperimental
 	return false
 }
+
+func (s SqlChannelStore) GetAllChannelsForExportAfter(limit int, afterId string) store.StoreChannel {
+	return store.Do(func(result *store.StoreResult) {
+		var data []*model.ChannelForExport
+		if _, err := s.GetReplica().Select(&data, `
+			SELECT
+				Channels.*,
+				Teams.Name as TeamName,
+				Schemes.Name as SchemeName
+			FROM Channels
+			INNER JOIN
+				Teams ON Channels.TeamId = Teams.Id
+			LEFT JOIN
+				Schemes ON Channels.SchemeId = Schemes.Id
+			WHERE
+				Channels.Id > :AfterId
+				AND Channels.Type IN ('O', 'P')
+			ORDER BY
+				Id
+			LIMIT :Limit`,
+			map[string]interface{}{"AfterId": afterId, "Limit": limit}); err != nil {
+			result.Err = model.NewAppError("SqlTeamStore.GetAllChannelsForExportAfter", "store.sql_channel.get_all.app_error", nil, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		result.Data = data
+	})
+}
+
+func (s SqlChannelStore) GetChannelMembersForExport(userId string, teamId string) store.StoreChannel {
+	return store.Do(func(result *store.StoreResult) {
+		var members []*model.ChannelMemberForExport
+		_, err := s.GetReplica().Select(&members, `
+            SELECT
+                ChannelMembers.*,
+                Channels.Name as ChannelName
+            FROM
+                ChannelMembers
+            INNER JOIN
+                Channels ON ChannelMembers.ChannelId = Channels.Id
+            WHERE
+                ChannelMembers.UserId = :UserId
+				AND Channels.TeamId = :TeamId
+				AND Channels.DeleteAt = 0`,
+			map[string]interface{}{"TeamId": teamId, "UserId": userId})
+
+		if err != nil {
+			result.Err = model.NewAppError("SqlChannelStore.GetChannelMembersForExport", "store.sql_channel.get_members.app_error", nil, "teamId="+teamId+", userId="+userId+", err="+err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		result.Data = members
+	})
+}
diff --git a/store/sqlstore/post_store.go b/store/sqlstore/post_store.go
index 9cf33888d..bc85b260e 100644
--- a/store/sqlstore/post_store.go
+++ b/store/sqlstore/post_store.go
@@ -1308,3 +1308,68 @@ func (s *SqlPostStore) GetMaxPostSize() store.StoreChannel {
 		result.Data = s.maxPostSizeCached
 	})
 }
+
+func (s *SqlPostStore) GetParentsForExportAfter(limit int, afterId string) store.StoreChannel {
+	return store.Do(func(result *store.StoreResult) {
+		var posts []*model.PostForExport
+		_, err1 := s.GetSearchReplica().Select(&posts, `
+                SELECT
+                    p1.*,
+                    Users.Username as Username,
+                    Teams.Name as TeamName,
+                    Channels.Name as ChannelName
+                FROM
+                    Posts p1
+                INNER JOIN
+                    Channels ON p1.ChannelId = Channels.Id
+                INNER JOIN
+                    Teams ON Channels.TeamId = Teams.Id
+                INNER JOIN
+                    Users ON p1.UserId = Users.Id
+                WHERE
+                    p1.Id > :AfterId
+                    AND p1.ParentId = ''
+                    AND p1.DeleteAt = 0
+					AND Channels.DeleteAt = 0
+					AND Teams.DeleteAt = 0
+					AND Users.DeleteAt = 0
+                ORDER BY
+                    p1.Id
+                LIMIT
+                    :Limit`,
+			map[string]interface{}{"Limit": limit, "AfterId": afterId})
+
+		if err1 != nil {
+			result.Err = model.NewAppError("SqlPostStore.GetAllAfterForExport", "store.sql_post.get_posts.app_error", nil, err1.Error(), http.StatusInternalServerError)
+		} else {
+			result.Data = posts
+		}
+	})
+}
+
+func (s *SqlPostStore) GetRepliesForExport(parentId string) store.StoreChannel {
+	return store.Do(func(result *store.StoreResult) {
+		var posts []*model.ReplyForExport
+		_, err1 := s.GetSearchReplica().Select(&posts, `
+                SELECT
+                    Posts.*,
+                    Users.Username as Username
+                FROM
+                    Posts
+                INNER JOIN
+                    Users ON Posts.UserId = Users.Id
+                WHERE
+                    Posts.ParentId = :ParentId
+                    AND Posts.DeleteAt = 0
+					AND Users.DeleteAt = 0
+                ORDER BY
+                    Posts.Id`,
+			map[string]interface{}{"ParentId": parentId})
+
+		if err1 != nil {
+			result.Err = model.NewAppError("SqlPostStore.GetAllAfterForExport", "store.sql_post.get_posts.app_error", nil, err1.Error(), http.StatusInternalServerError)
+		} else {
+			result.Data = posts
+		}
+	})
+}
diff --git a/store/sqlstore/team_store.go b/store/sqlstore/team_store.go
index 3ea6feced..b48242294 100644
--- a/store/sqlstore/team_store.go
+++ b/store/sqlstore/team_store.go
@@ -924,3 +924,59 @@ func (s SqlTeamStore) AnalyticsGetTeamCountForScheme(schemeId string) store.Stor
 		result.Data = count
 	})
 }
+
+func (s SqlTeamStore) GetAllForExportAfter(limit int, afterId string) store.StoreChannel {
+	return store.Do(func(result *store.StoreResult) {
+		var data []*model.TeamForExport
+		if _, err := s.GetReplica().Select(&data, `
+			SELECT
+				Teams.*,
+				Schemes.Name as SchemeName
+			FROM
+				Teams
+			LEFT JOIN
+				Schemes ON Teams.SchemeId = Schemes.Id
+			WHERE
+				Teams.Id > :AfterId
+			ORDER BY
+				Id
+			LIMIT
+				:Limit`,
+			map[string]interface{}{"AfterId": afterId, "Limit": limit}); err != nil {
+			result.Err = model.NewAppError("SqlTeamStore.GetAllTeams", "store.sql_team.get_all.app_error", nil, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		for _, team := range data {
+			if len(team.InviteId) == 0 {
+				team.InviteId = team.Id
+			}
+		}
+
+		result.Data = data
+	})
+}
+
+func (s SqlTeamStore) GetTeamMembersForExport(userId string) store.StoreChannel {
+	return store.Do(func(result *store.StoreResult) {
+		var members []*model.TeamMemberForExport
+		_, err := s.GetReplica().Select(&members, `
+	SELECT
+		TeamMembers.*,
+		Teams.Name as TeamName
+	FROM
+		TeamMembers
+	INNER JOIN
+		Teams ON TeamMembers.TeamId = Teams.Id
+	WHERE
+		TeamMembers.UserId = :UserId
+		AND Teams.DeleteAt = 0`,
+			map[string]interface{}{"UserId": userId})
+		if err != nil {
+			result.Err = model.NewAppError("SqlTeamStore.GetTeamMembersForExport", "store.sql_team.get_members.app_error", nil, "userId="+userId+" "+err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		result.Data = members
+	})
+}
diff --git a/store/sqlstore/user_store.go b/store/sqlstore/user_store.go
index c89c445ad..900010ce4 100644
--- a/store/sqlstore/user_store.go
+++ b/store/sqlstore/user_store.go
@@ -332,6 +332,17 @@ func (us SqlUserStore) GetAll() store.StoreChannel {
 	})
 }
 
+func (us SqlUserStore) GetAllAfter(limit int, afterId string) store.StoreChannel {
+	return store.Do(func(result *store.StoreResult) {
+		var data []*model.User
+		if _, err := us.GetReplica().Select(&data, "SELECT * FROM Users WHERE Id > :AfterId ORDER BY Id LIMIT :Limit", map[string]interface{}{"AfterId": afterId, "Limit": limit}); err != nil {
+			result.Err = model.NewAppError("SqlUserStore.GetAllAfter", "store.sql_user.get.app_error", nil, err.Error(), http.StatusInternalServerError)
+		}
+
+		result.Data = data
+	})
+}
+
 func (s SqlUserStore) GetEtagForAllProfiles() store.StoreChannel {
 	return store.Do(func(result *store.StoreResult) {
 		updateAt, err := s.GetReplica().SelectInt("SELECT UpdateAt FROM Users ORDER BY UpdateAt DESC LIMIT 1")
diff --git a/store/store.go b/store/store.go
index 8c731f8d5..8073b9437 100644
--- a/store/store.go
+++ b/store/store.go
@@ -111,6 +111,8 @@ type TeamStore interface {
 	ResetAllTeamSchemes() StoreChannel
 	ClearAllCustomRoleAssignments() StoreChannel
 	AnalyticsGetTeamCountForScheme(schemeId string) StoreChannel
+	GetAllForExportAfter(limit int, afterId string) StoreChannel
+	GetTeamMembersForExport(userId string) StoreChannel
 }
 
 type ChannelStore interface {
@@ -179,6 +181,8 @@ type ChannelStore interface {
 	EnableExperimentalPublicChannelsMaterialization()
 	DisableExperimentalPublicChannelsMaterialization()
 	IsExperimentalPublicChannelsMaterializationEnabled() bool
+	GetAllChannelsForExportAfter(limit int, afterId string) StoreChannel
+	GetChannelMembersForExport(userId string, teamId string) StoreChannel
 }
 
 type ChannelMemberHistoryStore interface {
@@ -217,6 +221,8 @@ type PostStore interface {
 	PermanentDeleteBatch(endTime int64, limit int64) StoreChannel
 	GetOldest() StoreChannel
 	GetMaxPostSize() StoreChannel
+	GetParentsForExportAfter(limit int, afterId string) StoreChannel
+	GetRepliesForExport(parentId string) StoreChannel
 }
 
 type UserStore interface {
@@ -272,6 +278,7 @@ type UserStore interface {
 	GetEtagForProfilesNotInTeam(teamId string) StoreChannel
 	ClearAllCustomRoleAssignments() StoreChannel
 	InferSystemInstallDate() StoreChannel
+	GetAllAfter(limit int, afterId string) StoreChannel
 }
 
 type SessionStore interface {
diff --git a/store/storetest/channel_store.go b/store/storetest/channel_store.go
index 11e058f70..636d96649 100644
--- a/store/storetest/channel_store.go
+++ b/store/storetest/channel_store.go
@@ -78,6 +78,8 @@ func TestChannelStore(t *testing.T, ss store.Store, s SqlSupplier) {
 			t.Run("ResetAllChannelSchemes", func(t *testing.T) { testResetAllChannelSchemes(t, ss) })
 			t.Run("ClearAllCustomRoleAssignments", func(t *testing.T) { testChannelStoreClearAllCustomRoleAssignments(t, ss) })
 			t.Run("MaterializedPublicChannels", func(t *testing.T) { testMaterializedPublicChannels(t, ss, s) })
+			t.Run("GetAllChannelsForExportAfter", func(t *testing.T) { testChannelStoreGetAllChannelsForExportAfter(t, ss) })
+			t.Run("GetChannelMembersForExport", func(t *testing.T) { testChannelStoreGetChannelMembersForExport(t, ss) })
 		})
 	}
 }
@@ -2693,3 +2695,85 @@ func testMaterializedPublicChannels(t *testing.T, ss store.Store, s SqlSupplier)
 		require.Equal(t, &model.ChannelList{&o2, &o3, &o4}, result.Data.(*model.ChannelList))
 	})
 }
+
+func testChannelStoreGetAllChannelsForExportAfter(t *testing.T, ss store.Store) {
+	t1 := model.Team{}
+	t1.DisplayName = "Name"
+	t1.Name = model.NewId()
+	t1.Email = MakeEmail()
+	t1.Type = model.TEAM_OPEN
+	store.Must(ss.Team().Save(&t1))
+
+	c1 := model.Channel{}
+	c1.TeamId = t1.Id
+	c1.DisplayName = "Channel1"
+	c1.Name = "zz" + model.NewId() + "b"
+	c1.Type = model.CHANNEL_OPEN
+	store.Must(ss.Channel().Save(&c1, -1))
+
+	r1 := <-ss.Channel().GetAllChannelsForExportAfter(10000, strings.Repeat("0", 26))
+	assert.Nil(t, r1.Err)
+	d1 := r1.Data.([]*model.ChannelForExport)
+
+	found := false
+	for _, c := range d1 {
+		if c.Id == c1.Id {
+			found = true
+			assert.Equal(t, t1.Id, c.TeamId)
+			assert.Nil(t, c.SchemeId)
+			assert.Equal(t, t1.Name, c.TeamName)
+		}
+	}
+	assert.True(t, found)
+}
+
+func testChannelStoreGetChannelMembersForExport(t *testing.T, ss store.Store) {
+	t1 := model.Team{}
+	t1.DisplayName = "Name"
+	t1.Name = model.NewId()
+	t1.Email = MakeEmail()
+	t1.Type = model.TEAM_OPEN
+	store.Must(ss.Team().Save(&t1))
+
+	c1 := model.Channel{}
+	c1.TeamId = t1.Id
+	c1.DisplayName = "Channel1"
+	c1.Name = "zz" + model.NewId() + "b"
+	c1.Type = model.CHANNEL_OPEN
+	store.Must(ss.Channel().Save(&c1, -1))
+
+	c2 := model.Channel{}
+	c2.TeamId = model.NewId()
+	c2.DisplayName = "Channel2"
+	c2.Name = "zz" + model.NewId() + "b"
+	c2.Type = model.CHANNEL_OPEN
+	store.Must(ss.Channel().Save(&c2, -1))
+
+	u1 := model.User{}
+	u1.Email = MakeEmail()
+	u1.Nickname = model.NewId()
+	store.Must(ss.User().Save(&u1))
+
+	m1 := model.ChannelMember{}
+	m1.ChannelId = c1.Id
+	m1.UserId = u1.Id
+	m1.NotifyProps = model.GetDefaultChannelNotifyProps()
+	store.Must(ss.Channel().SaveMember(&m1))
+
+	m2 := model.ChannelMember{}
+	m2.ChannelId = c2.Id
+	m2.UserId = u1.Id
+	m2.NotifyProps = model.GetDefaultChannelNotifyProps()
+	store.Must(ss.Channel().SaveMember(&m2))
+
+	r1 := <-ss.Channel().GetChannelMembersForExport(u1.Id, t1.Id)
+	assert.Nil(t, r1.Err)
+
+	d1 := r1.Data.([]*model.ChannelMemberForExport)
+	assert.Len(t, d1, 1)
+
+	cmfe1 := d1[0]
+	assert.Equal(t, c1.Name, cmfe1.ChannelName)
+	assert.Equal(t, c1.Id, cmfe1.ChannelId)
+	assert.Equal(t, u1.Id, cmfe1.UserId)
+}
diff --git a/store/storetest/mocks/ChannelStore.go b/store/storetest/mocks/ChannelStore.go
index c187aae6b..9db85eacf 100644
--- a/store/storetest/mocks/ChannelStore.go
+++ b/store/storetest/mocks/ChannelStore.go
@@ -218,6 +218,22 @@ func (_m *ChannelStore) GetAllChannelMembersNotifyPropsForChannel(channelId stri
 	return r0
 }
 
+// GetAllChannelsForExportAfter provides a mock function with given fields: limit, afterId
+func (_m *ChannelStore) GetAllChannelsForExportAfter(limit int, afterId string) store.StoreChannel {
+	ret := _m.Called(limit, afterId)
+
+	var r0 store.StoreChannel
+	if rf, ok := ret.Get(0).(func(int, string) store.StoreChannel); ok {
+		r0 = rf(limit, afterId)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(store.StoreChannel)
+		}
+	}
+
+	return r0
+}
+
 // GetByName provides a mock function with given fields: team_id, name, allowFromCache
 func (_m *ChannelStore) GetByName(team_id string, name string, allowFromCache bool) store.StoreChannel {
 	ret := _m.Called(team_id, name, allowFromCache)
@@ -282,6 +298,22 @@ func (_m *ChannelStore) GetChannelCounts(teamId string, userId string) store.Sto
 	return r0
 }
 
+// GetChannelMembersForExport provides a mock function with given fields: userId, teamId
+func (_m *ChannelStore) GetChannelMembersForExport(userId string, teamId string) store.StoreChannel {
+	ret := _m.Called(userId, teamId)
+
+	var r0 store.StoreChannel
+	if rf, ok := ret.Get(0).(func(string, string) store.StoreChannel); ok {
+		r0 = rf(userId, teamId)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(store.StoreChannel)
+		}
+	}
+
+	return r0
+}
+
 // GetChannelUnread provides a mock function with given fields: channelId, userId
 func (_m *ChannelStore) GetChannelUnread(channelId string, userId string) store.StoreChannel {
 	ret := _m.Called(channelId, userId)
diff --git a/store/storetest/mocks/PostStore.go b/store/storetest/mocks/PostStore.go
index 1c1baec7b..2e4d63089 100644
--- a/store/storetest/mocks/PostStore.go
+++ b/store/storetest/mocks/PostStore.go
@@ -194,6 +194,22 @@ func (_m *PostStore) GetOldest() store.StoreChannel {
 	return r0
 }
 
+// GetParentsForExportAfter provides a mock function with given fields: limit, afterId
+func (_m *PostStore) GetParentsForExportAfter(limit int, afterId string) store.StoreChannel {
+	ret := _m.Called(limit, afterId)
+
+	var r0 store.StoreChannel
+	if rf, ok := ret.Get(0).(func(int, string) store.StoreChannel); ok {
+		r0 = rf(limit, afterId)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(store.StoreChannel)
+		}
+	}
+
+	return r0
+}
+
 // GetPosts provides a mock function with given fields: channelId, offset, limit, allowFromCache
 func (_m *PostStore) GetPosts(channelId string, offset int, limit int, allowFromCache bool) store.StoreChannel {
 	ret := _m.Called(channelId, offset, limit, allowFromCache)
@@ -306,6 +322,22 @@ func (_m *PostStore) GetPostsSince(channelId string, time int64, allowFromCache
 	return r0
 }
 
+// GetRepliesForExport provides a mock function with given fields: parentId
+func (_m *PostStore) GetRepliesForExport(parentId string) store.StoreChannel {
+	ret := _m.Called(parentId)
+
+	var r0 store.StoreChannel
+	if rf, ok := ret.Get(0).(func(string) store.StoreChannel); ok {
+		r0 = rf(parentId)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(store.StoreChannel)
+		}
+	}
+
+	return r0
+}
+
 // GetSingle provides a mock function with given fields: id
 func (_m *PostStore) GetSingle(id string) store.StoreChannel {
 	ret := _m.Called(id)
diff --git a/store/storetest/mocks/TeamStore.go b/store/storetest/mocks/TeamStore.go
index 8e27e3c05..5d83eab50 100644
--- a/store/storetest/mocks/TeamStore.go
+++ b/store/storetest/mocks/TeamStore.go
@@ -109,6 +109,22 @@ func (_m *TeamStore) GetAll() store.StoreChannel {
 	return r0
 }
 
+// GetAllForExportAfter provides a mock function with given fields: limit, afterId
+func (_m *TeamStore) GetAllForExportAfter(limit int, afterId string) store.StoreChannel {
+	ret := _m.Called(limit, afterId)
+
+	var r0 store.StoreChannel
+	if rf, ok := ret.Get(0).(func(int, string) store.StoreChannel); ok {
+		r0 = rf(limit, afterId)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(store.StoreChannel)
+		}
+	}
+
+	return r0
+}
+
 // GetAllPage provides a mock function with given fields: offset, limit
 func (_m *TeamStore) GetAllPage(offset int, limit int) store.StoreChannel {
 	ret := _m.Called(offset, limit)
@@ -269,6 +285,22 @@ func (_m *TeamStore) GetMembersByIds(teamId string, userIds []string) store.Stor
 	return r0
 }
 
+// GetTeamMembersForExport provides a mock function with given fields: userId
+func (_m *TeamStore) GetTeamMembersForExport(userId string) store.StoreChannel {
+	ret := _m.Called(userId)
+
+	var r0 store.StoreChannel
+	if rf, ok := ret.Get(0).(func(string) store.StoreChannel); ok {
+		r0 = rf(userId)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(store.StoreChannel)
+		}
+	}
+
+	return r0
+}
+
 // GetTeamsByScheme provides a mock function with given fields: schemeId, offset, limit
 func (_m *TeamStore) GetTeamsByScheme(schemeId string, offset int, limit int) store.StoreChannel {
 	ret := _m.Called(schemeId, offset, limit)
diff --git a/store/storetest/mocks/UserStore.go b/store/storetest/mocks/UserStore.go
index 1f9f07e7d..51c37cb20 100644
--- a/store/storetest/mocks/UserStore.go
+++ b/store/storetest/mocks/UserStore.go
@@ -130,6 +130,22 @@ func (_m *UserStore) GetAll() store.StoreChannel {
 	return r0
 }
 
+// GetAllAfter provides a mock function with given fields: limit, afterId
+func (_m *UserStore) GetAllAfter(limit int, afterId string) store.StoreChannel {
+	ret := _m.Called(limit, afterId)
+
+	var r0 store.StoreChannel
+	if rf, ok := ret.Get(0).(func(int, string) store.StoreChannel); ok {
+		r0 = rf(limit, afterId)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(store.StoreChannel)
+		}
+	}
+
+	return r0
+}
+
 // GetAllProfiles provides a mock function with given fields: offset, limit
 func (_m *UserStore) GetAllProfiles(offset int, limit int) store.StoreChannel {
 	ret := _m.Called(offset, limit)
diff --git a/store/storetest/post_store.go b/store/storetest/post_store.go
index 72819f49e..b93eb6628 100644
--- a/store/storetest/post_store.go
+++ b/store/storetest/post_store.go
@@ -44,6 +44,8 @@ func TestPostStore(t *testing.T, ss store.Store) {
 	t.Run("PermanentDeleteBatch", func(t *testing.T) { testPostStorePermanentDeleteBatch(t, ss) })
 	t.Run("GetOldest", func(t *testing.T) { testPostStoreGetOldest(t, ss) })
 	t.Run("TestGetMaxPostSize", func(t *testing.T) { testGetMaxPostSize(t, ss) })
+	t.Run("GetParentsForExportAfter", func(t *testing.T) { testPostStoreGetParentsForExportAfter(t, ss) })
+	t.Run("GetRepliesForExport", func(t *testing.T) { testPostStoreGetRepliesForExport(t, ss) })
 }
 
 func testPostStoreSave(t *testing.T, ss store.Store) {
@@ -1814,3 +1816,97 @@ func testGetMaxPostSize(t *testing.T, ss store.Store) {
 	assert.Equal(t, model.POST_MESSAGE_MAX_RUNES_V2, (<-ss.Post().GetMaxPostSize()).Data.(int))
 	assert.Equal(t, model.POST_MESSAGE_MAX_RUNES_V2, (<-ss.Post().GetMaxPostSize()).Data.(int))
 }
+
+func testPostStoreGetParentsForExportAfter(t *testing.T, ss store.Store) {
+	t1 := model.Team{}
+	t1.DisplayName = "Name"
+	t1.Name = model.NewId()
+	t1.Email = MakeEmail()
+	t1.Type = model.TEAM_OPEN
+	store.Must(ss.Team().Save(&t1))
+
+	c1 := model.Channel{}
+	c1.TeamId = t1.Id
+	c1.DisplayName = "Channel1"
+	c1.Name = "zz" + model.NewId() + "b"
+	c1.Type = model.CHANNEL_OPEN
+	store.Must(ss.Channel().Save(&c1, -1))
+
+	u1 := model.User{}
+	u1.Username = model.NewId()
+	u1.Email = MakeEmail()
+	u1.Nickname = model.NewId()
+	store.Must(ss.User().Save(&u1))
+
+	p1 := &model.Post{}
+	p1.ChannelId = c1.Id
+	p1.UserId = u1.Id
+	p1.Message = "zz" + model.NewId() + "AAAAAAAAAAA"
+	p1.CreateAt = 1000
+	p1 = (<-ss.Post().Save(p1)).Data.(*model.Post)
+
+	r1 := <-ss.Post().GetParentsForExportAfter(10000, strings.Repeat("0", 26))
+	assert.Nil(t, r1.Err)
+	d1 := r1.Data.([]*model.PostForExport)
+
+	found := false
+	for _, p := range d1 {
+		if p.Id == p1.Id {
+			found = true
+			assert.Equal(t, p.Id, p1.Id)
+			assert.Equal(t, p.Message, p1.Message)
+			assert.Equal(t, p.Username, u1.Username)
+			assert.Equal(t, p.TeamName, t1.Name)
+			assert.Equal(t, p.ChannelName, c1.Name)
+		}
+	}
+	assert.True(t, found)
+}
+
+func testPostStoreGetRepliesForExport(t *testing.T, ss store.Store) {
+	t1 := model.Team{}
+	t1.DisplayName = "Name"
+	t1.Name = model.NewId()
+	t1.Email = MakeEmail()
+	t1.Type = model.TEAM_OPEN
+	store.Must(ss.Team().Save(&t1))
+
+	c1 := model.Channel{}
+	c1.TeamId = t1.Id
+	c1.DisplayName = "Channel1"
+	c1.Name = "zz" + model.NewId() + "b"
+	c1.Type = model.CHANNEL_OPEN
+	store.Must(ss.Channel().Save(&c1, -1))
+
+	u1 := model.User{}
+	u1.Email = MakeEmail()
+	u1.Nickname = model.NewId()
+	store.Must(ss.User().Save(&u1))
+
+	p1 := &model.Post{}
+	p1.ChannelId = c1.Id
+	p1.UserId = u1.Id
+	p1.Message = "zz" + model.NewId() + "AAAAAAAAAAA"
+	p1.CreateAt = 1000
+	p1 = (<-ss.Post().Save(p1)).Data.(*model.Post)
+
+	p2 := &model.Post{}
+	p2.ChannelId = c1.Id
+	p2.UserId = u1.Id
+	p2.Message = "zz" + model.NewId() + "AAAAAAAAAAA"
+	p2.CreateAt = 1001
+	p2.ParentId = p1.Id
+	p2.RootId = p1.Id
+	p2 = (<-ss.Post().Save(p2)).Data.(*model.Post)
+
+	r1 := <-ss.Post().GetRepliesForExport(p1.Id)
+	assert.Nil(t, r1.Err)
+
+	d1 := r1.Data.([]*model.ReplyForExport)
+	assert.Len(t, d1, 1)
+
+	reply1 := d1[0]
+	assert.Equal(t, reply1.Id, p2.Id)
+	assert.Equal(t, reply1.Message, p2.Message)
+	assert.Equal(t, reply1.Username, u1.Username)
+}
diff --git a/store/storetest/team_store.go b/store/storetest/team_store.go
index 1369dc69b..69b2d9eee 100644
--- a/store/storetest/team_store.go
+++ b/store/storetest/team_store.go
@@ -45,6 +45,8 @@ func TestTeamStore(t *testing.T, ss store.Store) {
 	t.Run("ResetAllTeamSchemes", func(t *testing.T) { testResetAllTeamSchemes(t, ss) })
 	t.Run("ClearAllCustomRoleAssignments", func(t *testing.T) { testTeamStoreClearAllCustomRoleAssignments(t, ss) })
 	t.Run("AnalyticsGetTeamCountForScheme", func(t *testing.T) { testTeamStoreAnalyticsGetTeamCountForScheme(t, ss) })
+	t.Run("GetAllForExportAfter", func(t *testing.T) { testTeamStoreGetAllForExportAfter(t, ss) })
+	t.Run("GetTeamMembersForExport", func(t *testing.T) { testTeamStoreGetTeamMembersForExport(t, ss) })
 }
 
 func testTeamStoreSave(t *testing.T, ss store.Store) {
@@ -1327,3 +1329,63 @@ func testTeamStoreAnalyticsGetTeamCountForScheme(t *testing.T, ss store.Store) {
 	count5 := (<-ss.Team().AnalyticsGetTeamCountForScheme(s1.Id)).Data.(int64)
 	assert.Equal(t, int64(2), count5)
 }
+
+func testTeamStoreGetAllForExportAfter(t *testing.T, ss store.Store) {
+	t1 := model.Team{}
+	t1.DisplayName = "Name"
+	t1.Name = model.NewId()
+	t1.Email = MakeEmail()
+	t1.Type = model.TEAM_OPEN
+	store.Must(ss.Team().Save(&t1))
+
+	r1 := <-ss.Team().GetAllForExportAfter(10000, strings.Repeat("0", 26))
+	assert.Nil(t, r1.Err)
+	d1 := r1.Data.([]*model.TeamForExport)
+
+	found := false
+	for _, team := range d1 {
+		if team.Id == t1.Id {
+			found = true
+			assert.Equal(t, t1.Id, team.Id)
+			assert.Nil(t, team.SchemeId)
+			assert.Equal(t, t1.Name, team.Name)
+		}
+	}
+	assert.True(t, found)
+}
+
+func testTeamStoreGetTeamMembersForExport(t *testing.T, ss store.Store) {
+	t1 := model.Team{}
+	t1.DisplayName = "Name"
+	t1.Name = model.NewId()
+	t1.Email = MakeEmail()
+	t1.Type = model.TEAM_OPEN
+	store.Must(ss.Team().Save(&t1))
+
+	u1 := model.User{}
+	u1.Email = MakeEmail()
+	u1.Nickname = model.NewId()
+	store.Must(ss.User().Save(&u1))
+
+	u2 := model.User{}
+	u2.Email = MakeEmail()
+	u2.Nickname = model.NewId()
+	store.Must(ss.User().Save(&u2))
+
+	m1 := &model.TeamMember{TeamId: t1.Id, UserId: u1.Id}
+	store.Must(ss.Team().SaveMember(m1, -1))
+
+	m2 := &model.TeamMember{TeamId: t1.Id, UserId: u2.Id}
+	store.Must(ss.Team().SaveMember(m2, -1))
+
+	r1 := <-ss.Team().GetTeamMembersForExport(u1.Id)
+	assert.Nil(t, r1.Err)
+
+	d1 := r1.Data.([]*model.TeamMemberForExport)
+	assert.Len(t, d1, 1)
+
+	tmfe1 := d1[0]
+	assert.Equal(t, t1.Id, tmfe1.TeamId)
+	assert.Equal(t, u1.Id, tmfe1.UserId)
+	assert.Equal(t, t1.Name, tmfe1.TeamName)
+}
diff --git a/store/storetest/user_store.go b/store/storetest/user_store.go
index d1a373f9b..f3cc59946 100644
--- a/store/storetest/user_store.go
+++ b/store/storetest/user_store.go
@@ -51,6 +51,7 @@ func TestUserStore(t *testing.T, ss store.Store) {
 	t.Run("AnalyticsGetSystemAdminCount", func(t *testing.T) { testUserStoreAnalyticsGetSystemAdminCount(t, ss) })
 	t.Run("GetProfilesNotInTeam", func(t *testing.T) { testUserStoreGetProfilesNotInTeam(t, ss) })
 	t.Run("ClearAllCustomRoleAssignments", func(t *testing.T) { testUserStoreClearAllCustomRoleAssignments(t, ss) })
+	t.Run("GetAllAfter", func(t *testing.T) { testUserStoreGetAllAfter(t, ss) })
 }
 
 func testUserStoreSave(t *testing.T, ss store.Store) {
@@ -2164,3 +2165,35 @@ func testUserStoreClearAllCustomRoleAssignments(t *testing.T, ss store.Store) {
 	require.Nil(t, r4.Err)
 	assert.Equal(t, "", r4.Data.(*model.User).Roles)
 }
+
+func testUserStoreGetAllAfter(t *testing.T, ss store.Store) {
+	u1 := model.User{
+		Email:    MakeEmail(),
+		Username: model.NewId(),
+		Roles:    "system_user system_admin system_post_all",
+	}
+	store.Must(ss.User().Save(&u1))
+
+	r1 := <-ss.User().GetAllAfter(10000, strings.Repeat("0", 26))
+	require.Nil(t, r1.Err)
+
+	d1 := r1.Data.([]*model.User)
+
+	found := false
+	for _, u := range d1 {
+		if u.Id == u1.Id {
+			found = true
+			assert.Equal(t, u1.Id, u.Id)
+			assert.Equal(t, u1.Email, u.Email)
+		}
+	}
+	assert.True(t, found)
+
+	r2 := <-ss.User().GetAllAfter(10000, u1.Id)
+	require.Nil(t, r2.Err)
+
+	d2 := r2.Data.([]*model.User)
+	for _, u := range d2 {
+		assert.NotEqual(t, u1.Id, u.Id)
+	}
+}