Bulk export tool
Available on all plans
self-hosted deployments
Moving data from one Mattermost instance into another begins with exporting data to a JSONL file using the bulk loading feature. This tool is useful if you have created a server for a proof of concept, have created another server for production use, and now want to retain the history from the proof of concept instance.
You can export the following data types:
Teams
Channels (public, private, and direct)
Users
Users’ team memberships
Users’ channel memberships
Posts (messages in public or private channels and replies to those messages)
Bulk export data
Create a full export file including attachments by running the mmctl export create – attachments command. See the Mattermost workspace migration documentation for details.
While the job is running, you can check its status by running the mmctl export job show command.
When the export job status is successful:
Identify the name of the completed export file by running the mmctl export list command.
Download the export file to your local machine by running the mmctl export download command.
The export command runs in the CLI. It has permissions to access all information in the Mattermost database.
To run the export command:
Navigate to the directory where the Mattermost server is installed. On a default install of Mattermost, the directory is
/opt/mattermost.Run the following command to extract data from all teams on the server. Note that you can change the file name and specify an absolute or relative path to dictate where the file is exported:
sudo -u mattermost bin/mattermost export bulk file.json --all-teamssudo -u mattermost bin/mattermost export bulk /home/user/bulk_data.json --all-teamsRetrieve your file from the location you specified.
At this time, the export supports attributes of the objects listed below. All Mattermost bulk export data files will begin with a Version object as the first line of the file. This indicates the version of the Mattermost bulk import file format with which the exported data is compatible.
You can export the following data types:
Teams
Channels (public, private, and direct)
Users
Users’ team memberships
Users’ channel memberships
Users’ notification preferences
Posts (regular, non-reply messages)
Posts’ replies and threads
Posts’ reactions
Custom emoji
Direct message channels
Direct message posts
Note
Configuration for data types such as exporting specific areas of the server, exporting additional types of posts, permissions schemes, file attachments, webhooks, and bot messages is not yet supported. Deleted objects are also not yet supported.
For requests to add additional attributes or objects to our exporter, please add a feature request on our feature idea forum.
Version object
| Field name | Type | Description |
|---|---|---|
| type | string | The string "version" |
| version | number | The number 1. |
| info | object | Optional VersionInfo object |
VersionInfo object
| Field name | Type | Description |
|---|---|---|
| generator | string | The name of the tool this export was generated with. Well known tools are: "mattermost-server" for the Mattermost Server. "mmetl" for the Slack export converter "mmetl". |
| version | string | The version of the tool this export was generated with. This may contain multiple pieces of version info, separated by spaces. The first one should be a semantic version. "7.6.0 (29bb1e53ef5a439c73065f47de2972f9bbcb09a4, enterprise: true)" is an example of such a version string. |
| created | string | The timestamp of the file creation. This should be formatted as an RFC 3339 timestamp. The nanosecond part is optional. "2022-11-22T16:40:51.019582328+01:00" |
| additional | any | Any additional information the generator wants to include into the file header. May be omitted. Be aware that the size of each line is limited to a few MiB. |
Team object
| Field name | Type | Description |
|---|---|---|
| name | string | The team name. |
| display_name | string | The display name for the team. |
| type | string | The type of team. Will have one of the following values: "O" for an open team "I" for an invite-only team. |
| description | string | The team description. |
| allow_open_invite | bool | Whether to allow open invitations. Will have one of the following values: "true" "false" |
| scheme | string | The name of the permissions scheme that applies to this team. |
Channel object
| Field name | Type | Description |
|---|---|---|
| team | string | The name of the team this channel belongs to. |
| name | string | The name of the channel. |
| display_name | string | The display name for the channel. |
| type | string | The type of channel. Will have one the following values: "O" for a public channel. "P" for a private channel. |
| header | string | The channel header. |
| purpose | string | The channel purpose. |
| scheme | string | The name of the permissions scheme that applies to this team. |
User object
| Field name | Type | Description |
|---|---|---|
| username | string | The user’s username. This is the unique identifier for the user. |
| string | The user’s email address. | |
| auth_service | string | The authentication service used for this user account. This field will be absent for user/password authentication. "gitlab" - GitLab authentication. "ldap" - LDAP authentication (Enterprise and Professional) "saml" - Generic SAML based authentication (Enterprise) "google" - Google OAuth authentication (Enterprise) "office365" - Microsoft Office 365 OAuth Authentication (Enterprise) |
| auth_data | string | The authentication data if auth_service is used. The value depends on the auth_service that is specified. The data comes from the following fields for the respective auth_services: "gitlab" - The value of the Id attribute provided in the GitLab auth data. "ldap" - The value of the LDAP attribute specified as the "ID Attribute" in the Mattermost LDAP configuration. "saml" - The value of the SAML email address attribute. "google" - The value of the OAuth Id attribute. "office365" - The value of the OAuth Id attribute. |
| nickname | string | The user’s nickname. |
| first_name | string | The user’s first name. |
| last_name | string | The user’s last name. |
| position | string | The user’s position. |
| roles | string | The user’s roles. |
| locale | string | The user’s localization configuration. |
| use_markdown_preview | bool | "true" if the user has enabled markdown preview in the message input box. |
| use_formatting | bool | "true" if the user has enabled post formatting for links, emoji, text styles, and line breaks. |
| show_unread_section | string | "true" if the user has enabled showing unread messages at top of channel sidebar. |
| theme | string | The user’s theme. Formatted as a Mattermost theme string. |
| military_time | string | "true" if the user has enabled a 24-hour clock. "false" if using a 12-hour clock. |
| collapse_previews | string | "true" if user collapses link preview by default. "false" if user expands link previews by default. |
| message_display | string | The style the user prefers for displayed messages. Options are "clean" if the user uses the standard style or "compact" if the user uses compact style. |
| channel_display_mode | string | "full" if the users displays channel messages at the full width of the screen or "centered" if the user uses a fixed width, centered block. |
| tutorial_step | string | "1", "2", or "3" indicates which specified tutorial step to start with for the user. "999" skips the tutorial. |
| email_interval | string | Email batching interval to use during bulk import. |
| delete_at | int64 | Timestamp of when the user was deactivated. |
| teams | array | The teams which the user is member of. Is an array of UserTeamMembership objects. |
| notify_props | object | The user’s notify preferences, as defined by the UserNotifyProps object. |
UserNotifyProps object
This object is a member of the User object.
| Field name | Type | Description |
|---|---|---|
| desktop | string | Preference for sending desktop notifications. Will be one of the following values: "all" - For all activity. "mention" - Only for mentions. "none" - Never. |
| desktop_sound | string | Preference for whether desktop notification sound is played. Will be one of the following values: "true" - Sound is played. "false" - Sound is not played. |
| string | Preference for email notifications. Will be one of the following values: "true" - Email notifications are sent immediately. "false" - Email notifications are not sent. |
|
| mobile | string | Preference for sending mobile push notifications. Will be one of the following values: "all" - For all activity. "mention" - Only for mentions. "none" - Never. |
| mobile_push_status | string | Preference for when push notifications are triggered. Will be one of the following values: "online" - When online, away or offline. "away" - When away or offline. "offline" - When offline. |
| channel | string | Preference for whether @all, @channel, and @here trigger mentions. Will be one of the following values: "true" - Mentions are triggered. "false" - Mentions are not triggered. |
| comments | string | Preference for reply mention notifications. Will be one of the following values: "any" - Trigger notifications on messages in reply threads that the user starts or participates in. "root" - Trigger notifications on messages in threads that the user starts. "never" - Do not trigger notifications on messages in reply threads unless the user is mentioned. |
| mention_keys | string | Preference for custom non-case sensitive words that trigger mentions. Words are separated by commas. |
UserTeamMembership object
| Field name | Type | Description |
|---|---|---|
| name | string | The name of the team this user is a member of. |
| roles | string | The roles the user has within this team. |
| theme | string | The user’s theme for this team. Formatted as a Mattermost theme string. |
| channels | array | The channels within this team that the user is a member of. Listed as an array of UserChannelMembership objects. |
UserChannelMembership object
| Field name | Type | Description |
|---|---|---|
| name | string | The name of the channel in the parent team that this user is a member of. |
| roles | string | The roles the user has within this channel. |
| notify_props | object | The notify preferences for this user in this channel as defined by the ChannelNotifyProps object. |
| favorite | boolean | Whether the channel is marked as a favorite for this user. Will be one of the following values: "true" - Yes. "false" - No. |
ChannelNotifyProps object
This object is a member of the ChannelMembership object.
| Field name | Type | Description |
|---|---|---|
| desktop | string | Preference for sending desktop notifications. Will be one of the following values: "default" - Global default. "all" - For all activity. "mention" - Only for mentions. "none" - Never. |
| mobile | string | Preference for sending mobile notifications. Will be one of the following values: "default" - Global default. "all" - For all activity. "mention" - Only for mentions. "none" - Never. |
| mark_unread | string | Preference for marking channel as unread. Will be one of the following values: "all" - For all unread messages. "mention" - Only for mentions. |
Post object
| Field name | Type | Description |
|---|---|---|
| team | string | The name of the team that this post is in. |
| channel | string | The name of the channel that this post is in. |
| user | string | The username of the user for this post. |
| message | string | The message that the post contains. |
| props | object | The props for a post. Contains additional formatting information used by integrations and bot posts. For a more detailed explanation see the message attachments documentation. |
| create_at | int | The timestamp for the post, in milliseconds since the Unix epoch. |
| reactions | array | The emoji reactions to this post. Will be an array of Reaction objects. |
Reply object
| Field name | Type | Description |
|---|---|---|
| user | string | The username of the user for this reply. |
| message | string | The message that the reply contains. |
| create_at | int | The timestamp for the reply, in milliseconds since the Unix epoch. |
Reaction object
This object is a member of the Post object.
| Field name | Type | Description |
|---|---|---|
| user | string | The username of the user for this reply. |
| emoji_name | string | The emoji of the reaction. |
| create_at | int | The timestamp for the reply, in milliseconds since the Unix epoch. |
Emoji object
| Field name | Type | Description |
|---|---|---|
| name | string | The emoji name. |
| image | string | The path (either absolute or relative to the current working directory) to the image file for this emoji. |
