Message

The Message component is a React Context provider that wraps all the logic, functionality, and UI for the individual messages displayed in a message list. It provides the MessageContext to its children. All the message UI components consume the MessageContext and rely on the stored data for their display and interaction.

Basic Usage

The Message component is used internally as part of the logic of the MessageList. The MessageList renders a list of messages and passes each individual message object into a Message component. Since the component is used internally by default, it only needs to be explicitly imported from the library and used in unique use cases.

UI Customization

The Message component does not inject any UI, so all message customization is handled by the Message UI component. The Message UI component is passed as the Message prop into either the Channel or MessageList component.

Props

message

The StreamChat message object, which provides necessary data to the underlying UI components.

additionalMessageInputProps

Additional props to be passed to the underlying MessageInput component, available props. It is rendered when editing a message.

autoscrollToBottom

Call this function to keep message list scrolled to the bottom when the message list container scroll height increases (only available in the VirtualizedMessageList). An example use case is that upon user’s interaction with the application, a new element appears below the last message. In order to keep the newly rendered content visible, the autoscrollToBottom function can be called. The container, however, is not scrolled to the bottom, if already scrolled up more than 4px from the bottom. The function is provided by the SDK and is not inteded for customization.

closeReactionSelectorOnClick

If true, picking a reaction from the ReactionSelector component will close the selector.

customMessageActions

An object containing custom message actions (key) and function handlers (value). For each custom action a dedicated item (button) in MessageActionsBox is rendered. The key is used as a display text inside the button. Therefore, it should not be cryptic but rather bear the end user in mind when formulating it.

const customActions = {
  'Copy text': (message) => {
    navigator.clipboard.writeText(message.text || '');
  },
};

<MessageList customMessageActions={customActions} />;

Custom action item “Copy text” in the message actions box:

const customActions = {
  'Copy text': (message) => {
    navigator.clipboard.writeText(message.text || '');
  },
};

<MessageList customMessageActions={customActions} />;

Custom action item “Copy text” in the message actions box:

disableQuotedMessages

If true, disables the ability for users to quote messages.

endOfGroup

When true, the message is the last one in a group sent by a specific user (only used in the VirtualizedMessageList).

firstOfGroup

When true, the message is the first one in a group sent by a specific user (only used in the VirtualizedMessageList).

formatDate

Overrides the default date formatting logic, has access to the original date object.

getDeleteMessageErrorNotification

Function that returns the notification text to be displayed when a delete message request fails. This function receives the deleted message object as its argument.

getFetchReactionsErrorNotification

Function that returns the notification text to be displayed when loading message reactions fails. This function receives the current message object as its argument.

getFlagMessageErrorNotification

Function that returns the notification text to be displayed when a flag message request fails. This function receives the flagged message object as its argument.

getFlagMessageSuccessNotification

Function that returns the notification text to be displayed when a flag message request succeeds. This function receives the flagged message object as its argument.

getMarkMessageUnreadErrorNotification

Function that returns the notification text to be displayed when a mark message unread request fails. This function receives the marked message object as its argument.

getMarkMessageUnreadSuccessNotification

Function that returns the notification text to be displayed when a mark message unread request succeeds. This function receives the marked message object as its argument.

getMuteUserErrorNotification

Function that returns the notification text to be displayed when a mute user request fails. This function receives the muted user object as its argument.

getMuteUserSuccessNotification

Function that returns the notification text to be displayed when a mute user request succeeds. This function receives the muted user object as its argument.

getPinMessageErrorNotification

Function that returns the notification text to be displayed when a pin message request fails. This function receives the pinned message object as its argument.

groupedByUser

If true, group messages sent by each user (only used in the VirtualizedMessageList).

groupStyles

An array of potential styles to apply to a grouped message (ex: top, bottom, single).

highlighted

Whether to highlight and focus the message on load. Used internally in the process of jumping to a message.

initialMessage

When true, signifies the message is the parent message in a thread list.

lastReceivedId

The latest message ID in the current channel.

Message

Custom UI component to display a message.

messageActions

Array of allowed message actions (ex: ‘edit’, ‘delete’, ‘reply’). To disable all actions, provide an empty array.

messageListRect

DOMRect object linked to the parent wrapper div around the InfiniteScroll component.

onlySenderCanEdit

If true, only the sender of the message has editing privileges. If false also channel capability update-any-message has to be enabled in order a user can edit other users’ messages.

onMentionsClick

Custom action handler function to run on click of a @mention in a message.

onMentionsHover

Custom action handler function to run on hover over a @mention in a message.

onUserClick

Custom action handler function to run on click of user avatar.

onUserHover

Custom action handler function to run on hover of user avatar.

openThread

Custom action handler to open a Thread component.

pinPermissions

The user roles allowed to pin messages in various channel types (deprecated in favor of channelCapabilities).

readBy

An array of users that have read the current message.

renderText

Custom function to render message text content.

retrySendMessage

Custom action handler to retry sending a message after a failed request.

sortReactionDetails

Comparator function to sort the list of reacted users. Should have the same signature as an array’s sort method.

sortReactions

Comparator function to sort reactions. Should have the same signature as the sort method for a string array.

threadList

If true, indicates that the current MessageList component is part of a Thread.

unsafeHTML

If true, renders HTML instead of markdown. Posting HTML is only supported server-side.