Lua for Neovim: The Neovim Lua API — vim.api, vim.opt, vim.keymap.set & Autocommands | Episode 31

Everything we've learned comes together here. In this episode we explore the Neovim Lua API: vim.api for core functions, vim.fn for calling Vimscript functions, vim.opt for setting options, vim.keymap.set for keymaps, :luafile % for live reloading, creating user commands, and setting up autocommands — all from Lua. Every keystroke is shown on screen with 3-second pauses so you can follow along at your own pace. What You'll Learn: - vim.api — Neovim's core API functions - vim.fn — calling Vimscript functions from Lua - vim.opt — setting Neovim options (number, tabstop, etc.) - vim.keymap.set — creating keymaps from Lua - :luafile % — live-reloading your Lua config - User commands — creating custom :Commands - Autocommands — running code on events Student Code: https://github.com/GoCelesteAI/learn-lua-in-neovim/tree/main/episode31 Timestamps: 0:00 Intro 0:12 Preview 0:44 Buffer API & vim.fn 2:55 vim.opt — Set Options 5:23 :luafile % — Source Into Neovim 5:57 User Command — :Hello 8:29 Keymap — leader h 9:19 Autocommand — BufWritePost 10:28 Test All Features 10:55 Recap 11:17 Endscreen Key Takeaways: 1. vim.api gives direct access to Neovim's core API 2. vim.fn lets you call any Vimscript function from Lua 3. vim.opt sets options like vim.opt.number = true 4. vim.keymap.set replaces the old vim.api.nvim_set_keymap 5. :luafile % sources the current file for instant feedback This is Episode 31 of the Learn Lua in Neovim series. Next episode: writing your first Neovim plugin entirely in Lua. Taught by CelesteAI. Like & subscribe for more tutorials! #lua #neovim #programming #tutorial #beginners #learnlua #luaprogramming #neovimtutorial #neovimapi #neovimconfig #coding