Lua neovim plugin load nvim_buf_clear_namespace when textchange

I started using neovim recently and for a learning Example i tried to create a basic plugin to update packages for node modules inside the package.json

The idea is when the text changes or when trying to undo i clear the buffer.

Calling this function : lua Clear_highlights() do the job but it's seems when the text changes or undo seems not triggering the function Clear_highlights() am for sure missing something if someone can help me catch this will be awesome.

Thank you.

line 20 : Github repo

-- Clear buffer
Clear_highlights = function()
	vim.api.nvim_buf_clear_namespace(0, require("nodePackageCheck").Config.get_namespace_id(), 0, -1)
end

vim.cmd([[autocmd! TextChanged,TextChangedI, BufWritePost  * lua Clear_highlights()]])

vim.cmd([[autocmd! TextChanged,TextChangedI, BufWritePost  * lua Clear_highlights()]])

• autocmd! is for deleting handlers/groups, not defining them. Remove the bang (!).
• Random whitespace confuses vim's parser: here it treats BufWritePost as the "pattern", and * as the start of the handler (command).

Try this instead:

vim.cmd([[autocmd TextChanged,TextChangedI,BufWritePost * lua Clear_highlights()]])

My final solution was a remapping undo in normal mode and call Clear_highlights() with.

vim.api.nvim_set_keymap("n", "u", ":undo<CR>:lua Clear_highlights()<CR>", { noremap = true, silent = true })