spreed/docs/chat.md

Chat API

Base endpoint is: /ocs/v2.php/apps/spreed/api/v1

Receive chat messages of a conversation

• Method: GET

• Endpoint: /chat/{token}

• Data:

  field	type	Description
  lookIntoFuture	int	1 Poll and wait for new message or 0 get history of a conversation
  limit	int	Number of chat messages to receive (100 by default, 200 at most)
  lastKnownMessageId	int	Serves as an offset for the query. The lastKnownMessageId for the next page is available in the X-Chat-Last-Given header.
  lastCommonReadId	int	Send the last X-Chat-Last-Common-Read header you got, if you are interested in updates of the common read value. A 304 response does not allow custom headers and otherwise the server can not know if your value is modified or not.
  timeout	int	$lookIntoFuture = 1 only, Number of seconds to wait for new messages (30 by default, 60 at most)
  setReadMarker	int	1 to automatically set the read timer after fetching the messages, use 0 when your client calls Mark chat as read manually. (Default: 1)
  includeLastKnown	int	1 to include the last known message as well (Default: 0)

• Response:

  • Status code:

    • 200 OK
    • 304 Not Modified When there were no older/newer messages
    • 404 Not Found When the conversation could not be found for the participant
    • 412 Precondition Failed When the lobby is active and the user is not a moderator

  • Header:

    field	type	Description
    X-Chat-Last-Given	int	Offset (lastKnownMessageId) for the next page.
    X-Chat-Last-Common-Read	int	ID of the last message read by every user that has read privacy set to public. When the user themself has it set to private the value the header is not set (only available with chat-read-status capability and when lastCommonReadId was sent)

  • Data: Array of messages, each message has at least:

    field	type	Description
    id	int	ID of the comment
    token	string	Conversation token
    actorType	string	guests or users
    actorId	string	User id of the message author
    actorDisplayName	string	Display name of the message author
    timestamp	int	Timestamp in seconds and UTC time zone
    systemMessage	string	empty for normal chat message or the type of the system message (untranslated)
    messageType	string	Currently known types are comment, comment_deleted, system and command
    isReplyable	bool	True if the user can post a reply to this message (only available with chat-replies capability)
    referenceId	string	A reference string that was given while posting the message to be able to identify a sent message again (only available with chat-reference-id capability)
    message	string	Message string with placeholders (see Rich Object String)
    messageParameters	array	Message parameters for message (see Rich Object String)
    parent	array	Optional: See Parent data below

Parent data

• When deleted:

  field	type	Description
  id	int	ID of the parent comment
  deleted	bool	true when the parent is deleted

• Regular message:

  Full message array as shown above, but parent will never be set for a parent message.

Sending a new chat message

• Method: POST

• Endpoint: /chat/{token}

• Data:

  field	type	Description
  message	string	The message the user wants to say
  actorDisplayName	string	Guest display name (ignored for logged in users)
  replyTo	int	The message ID this message is a reply to (only allowed for messages from the same conversation and when the message type is not system or command)
  referenceId	string	A reference string to be able to identify the message again in a "get messages" request, should be a random sha256 (only available with chat-reference-id capability)

• Response:

  • Status code:

    • 201 Created
    • 400 Bad Request In case of any other error
    • 403 Forbidden When the conversation is read-only
    • 404 Not Found When the conversation could not be found for the participant
    • 412 Precondition Failed When the lobby is active and the user is not a moderator
    • 413 Payload Too Large When the message was longer than the allowed limit of 32000 characters (or 1000 until Nextcloud 16.0.1, check the spreed => config => chat => max-length capability for the limit)

  • Header:

    field	type	Description
    X-Chat-Last-Common-Read	int	ID of the last message read by every user that has read privacy set to public. When the user themself has it set to private the value the header is not set (only available with chat-read-status capability)

  • Data: The full message array of the new message, as defined in Receive chat messages of a conversation

Share a rich object to the chat

See OCP\RichObjectStrings\Definitions for more details on supported rich objects and required data.

• Required capability: rich-object-sharing

• Method: POST

• Endpoint: /chat/{token}/share

• Data:

  field	type	Description
  objectType	string	The object type
  objectId	string	The object id
  metaData	string	JSON encoded array of the rich objects data
  actorDisplayName	string	Guest display name (ignored for logged in users)
  referenceId	string	A reference string to be able to identify the message again in a "get messages" request, should be a random sha256 (only available with chat-reference-id capability)

• Response:

  • Status code:

    • 201 Created
    • 400 Bad Request In case the meta data is invalid
    • 403 Forbidden When the conversation is read-only
    • 404 Not Found When the conversation could not be found for the participant
    • 412 Precondition Failed When the lobby is active and the user is not a moderator
    • 413 Payload Too Large When the message was longer than the allowed limit of 32000 characters (or 1000 until Nextcloud 16.0.1, check the spreed => config => chat => max-length capability for the limit)

  • Header:

    field	type	Description
    X-Chat-Last-Common-Read	int	ID of the last message read by every user that has read privacy set to public. When the user themself has it set to private the value the header is not set (only available with chat-read-status capability)

  • Data: The full message array of the new message, as defined in Receive chat messages of a conversation

Deleting a chat message

• Method: DELETE

• Endpoint: /chat/{token}/{messageId}

• Response:

  • Status code:

    • 200 OK - When deleting was successful
    • 202 Accepted - When deleting was successful but Matterbridge is enabled so the message was leaked to other services
    • 400 Bad Request The message is already older than 6 hours
    • 403 Forbidden When the message is not from the current user and the user not a moderator
    • 403 Forbidden When the conversation is read-only
    • 404 Not Found When the conversation or chat message could not be found for the participant
    • 405 Method Not Allowed When the message is not a normal chat message
    • 412 Precondition Failed When the lobby is active and the user is not a moderator

  • Header:

    field	type	Description
    X-Chat-Last-Common-Read	int	ID of the last message read by every user that has read privacy set to public. When the user themself has it set to private the value the header is not set (only available with chat-read-status capability)

  • Data: The full message array of the new system message "You deleted a message", as defined in Receive chat messages of a conversation The parent message is the object of the deleted message with the replaced text "Message deleted by you". This message should not be displayed to the user but instead be used to remove the original message from any cache/storage of the device.

Mark chat as read

• Method: POST

• Endpoint: /chat/{token}/read

• Data:

  field	type	Description
  lastReadMessage	int	The last read message ID

• Response:

  • Status code:

    • 200 OK
    • 404 Not Found When the room could not be found for the participant, or the participant is a guest.

  • Header:

    field	type	Description
    X-Chat-Last-Common-Read	int	ID of the last message read by every user that has read privacy set to public. When the user themself has it set to private the value the header is not set (only available with chat-read-status capability)

Get mention autocomplete suggestions

• Method: GET

• Endpoint: /chat/{token}/mentions

• Data:

  field	type	Description
  search	string	Search term for name suggestions (should at least be 1 character)
  limit	int	Number of suggestions to receive (20 by default)
  includeStatus	bool	Whether the user status information also needs to be loaded

• Response:

  • Status code:

    • 200 OK
    • 403 Forbidden When the conversation is read-only
    • 404 Not Found When the conversation could not be found for the participant
    • 412 Precondition Failed When the lobby is active and the user is not a moderator

  • Data: Array of suggestions, each suggestion has at least:

    field	type	Description
    id	string	The user id which should be sent as @<id> in the message (user ids that contain spaces as well as guest ids need to be wrapped in double-quotes when sending in a message: @"space user" and @"guest/random-string")
    label	string	The displayname of the user
    source	string	The type of the user, currently only users, guests or calls (for mentioning the whole conversation
    status	string	Optional: Only available with includeStatus=true and for users with a set status
    statusIcon	string	Optional: Only available with includeStatus=true and for users with a set status
    statusMessage	string	Optional: Only available with includeStatus=true and for users with a set status

System messages

• conversation_created - {actor} created the conversation
• conversation_renamed - {actor} renamed the conversation from "foo" to "bar"
• call_started - {actor} started a call
• call_joined - {actor} joined the call
• call_left - {actor} left the call
• call_ended - Call with {user1}, {user2}, {user3}, {user4} and {user5} (Duration 30:23)
• read_only_off - {actor} unlocked the conversation
• read_only - {actor} locked the conversation
• listable_none - {actor} limited the conversation to the current participants
• listable_users - {actor} opened the conversation accessible to registered users
• listable_all - {actor} opened the conversation accessible to registered and guest app users
• lobby_timer_reached - The conversation is now open to everyone
• lobby_none - {actor} opened the conversation to everyone
• lobby_non_moderators - {actor} restricted the conversation to moderators
• guests_allowed - {actor} allowed guests in the conversation
• guests_disallowed - {actor} disallowed guests in the conversation
• password_set - {actor} set a password for the conversation
• password_removed - {actor} removed the password for the conversation
• user_added - {actor} added {user} to the conversation
• user_removed - {actor} removed {user} from the conversation
• moderator_promoted - {actor} promoted {user} to moderator
• moderator_demoted - {actor} demoted {user} from moderator
• guest_moderator_promoted - {actor} promoted {user} to moderator
• guest_moderator_demoted - {actor} demoted {user} from moderator
• message_deleted - Message deleted by {actor} (Should not be shown to the user)