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Update a message

A user can update any of their own text and file messages sent using UserMessageParams and FileMessageParams. An error is returned if a user attempts to update another user's messages. In addition, channel operators can update any messages sent in a channel.

Note: Starting from Flutter Chat SDK 3.1.0, UserMessageParams requires the message parameter.

// Update a user message.
try {
    final params = UserMessageParams(message: NEW_TEXT_MESSAGE)
        ..customType = NEW_CUSTOM_TYPE
        ..data = NEW_DATA;

    final message = await channel.updateUserMessage(USER_MESSAGE_ID, params);
    // The message is successfully updated.
    // You can check if the update operation has been performed correctly.
} catch (e) {
    // Handle error.
}

// Update a file message.
try {
    final params = FileMessageParams
        .fromUrl(
            NEW_FILE_URL,
            mimeType: 'image/jpeg',
            name: NEW_FILE_NAME,
            size: NEW_FILE_SIZE
        )
        ..customType = NEW_CUSTOM_TYPE;

    final message = await channel.updateFileMessage(FILE_MESSAGE_ID, params);
    // The message is successfully updated.
    // You can check if the update operation has been performed correctly.
} catch (e) {
    // Handle error.
}

If a message is updated, the onMessageUpdated() method in the channel event handler is invoked on all users' devices except the one that updated the message.

class MyClass with ChannelEventHandler {
    // Add this class through sendbird.addChannelEventHandler(UNIQUE_HANDLER_ID, this).
    // Or remove it through sendbird.removeChannelEventHandler(UNIQUE_HANDLER_ID) when it's no longer needed.

    @override
    void onMessageUpdated(BaseChannel channel, BaseMessage message) {

    }
}