how to auto format afte save

[woshichuanqilz]

here is my config in the config file.

vim.api.nvim_create_augroup("format json", {})
vim.api.nvim_clear_autocmds({ group = "format json" })
vim.api.nvim_create_autocmd("BufWritePost", {
  pattern = "*.json",
  callback = function()
    vim.lsp.buf.format()
  end,
  group = "format json",
  desc = "format json",
})

The json lsp server is installed by mason which is biome.

But I still get the error msg

[dpetka2001]

You should configure your formatter of choice in conform.nvim and it will auto-format on save.

[woshichuanqilz]

I add command require("conform").formatters_by_ft = vim.tbl_extend("force", require("conform").formatters_by_ft, { json = { "jq" } }) to the init.lua. But get error conform not found why it happened?

The conform is built-in I think. I found it in the Lazy list

[dpetka2001]

You should just create a file ~/.config/nvim/lua/plugins/format.lua with contents

return {
  {
    "stevearc/conform.nvim",
    opts = {
      formatters_by_ft = {
        json = { { "jq" } },
      },
    },
  },
}