Go LSP Not working

[kyp0717]

Hello. I am trying to implement LSP support for go programming.
My understanding is that In the ./nvim/ftplugin folder, I should create the go.lua with the following code. With go.lua in ftplugin, that is all I need for nvim to recognize go files so that LSP (using gopls) can be started and attached to the buffer. However, this approach did not work. What am I doing wrong?

// ./nvim/ftplugin/go.lua
local autocmd = vim.api.nvim_create_autocmd
autocmd("FileType", {
    pattern = "go",
    callback = function()
        local root_dir = vim.fs.dirname(
            vim.fs.find({ 'go.mod', 'go.work', '.git' }, { upward = true })[1]
        )
        local client = vim.lsp.start({
            name = 'gopls',
            cmd = { 'gopls' },
            root_dir = root_dir,
        })
        vim.lsp.buf_attach_client(0, client)
    end
})

gopls have already been installed in the flake.nix
The go filetype was recognized but the LSP server did not start. LspInfo indicated that a client was not started.
Please advise. Thanks.

[mrcjkb]

hey 👋

You shouldn't create an autocommand in ftplugin scripts, as the scripts are sourced on filetype events.

[kyp0717]

Thank you for your respond. I have modified based on your recommendation and it works now!