Ajnasz Blog

The vim.lsp.buf.execute_command is used to execute a command on the LSP server for a specific buffer.

Neovim will deprecate (see :checkhealt vim.deprecated) vim.lsp.buf.execute_command in favor of clint:exec_cmd in the future. For example to the typescript organizeImport should be changed from:

local function on_ts_ls_attach(client, bufnr)
    vim.keymap.set("n", "<leader>o",
        "<cmd>lua vim.lsp.buf.execute_command({command = \"_typescript.organizeImports\", arguments = {vim.fn.expand(\"%:p\")}})<cr>",
    { noremap = true, silent = true, buffer = bufnr })
end

to

local function on_ts_ls_attach(client, bufnr)
    vim.keymap.set("n", "<leader>o", function
        return client:exec_cmd({
            command = "_typescript.organizeImports",
            arguments = { vim.api.nvim_buf_get_name(bufnr) }
        }, { bufnr = bufnr })
    end, { noremap = true, silent = true, buffer = bufnr })
end

If also think that the new format is more readable and more flexible.