How to see the current source being used in none-ls for my status line

[jakDev003]

Currently I am trying to use this command to get the current none-ls source for my status line but it is always blank.
local null_ls_source = "%{StringFromList(map(get(g:, 'null_ls_sources', []), 'v:val.name'))}"

I am using this to get the current lsp server and for none-ls (null-ls) it just says 'null-ls' so it would be helpful to know if prettier for example active.

local get_lsp_client = function(msg)
    msg = msg or 'No Active Lsp'
    local buf_ft = vim.api.nvim_buf_get_option(0, 'filetype')
    local clients = vim.lsp.get_active_clients()
    if next(clients) == nil then
        return msg
    end
    for _, client in ipairs(clients) do
        local filetypes = client.config.filetypes
        if filetypes and vim.fn.index(filetypes, buf_ft) ~= -1 then
            return client.name
        end
    end
    return msg
end

What am I doing wrong?

[Zeioth]

If you use heirline, you can use the lsp component from heirline-components to achieve this.

Or if you don't mind having it float, you can use noice.nvim, which is quite easy to setup.