How to get the current buffer file path using the Neovim Lua API?

Question

I am using Neovim 0.5 and want to write a custom function to use with telescope.nvim.

I need to get the path of the file loaded in the current buffer before I can execute the function. I have been unable to find how to do this after reading the Neovim Lua API documentation.

So far I've found that vim.api.nvim_get_current_buf() returns the current buffer number, but how do I get the full file path of the current buffer?

Answer 1

You can access the full path to the file in the current buffer using vim.api.nvim_buf_get_name(0), where 0 for buffer id means "the current buffer".

https://neovim.io/doc/user/api.html#nvim_buf_get_name()