presence.nvim doesn't start, getting an exception instead

[poniponiponiponiponiponiponiponiponi]

Description

I followed the installation steps but I'm getting an exception instead and Discord shows nothing.

Error executing vim.schedule lua callback: ...te/pack/packer/start/presence.nvim/lua/presence/init.lua:348: attempt to index local 'response' (a nil value)
stack traceback:
        ...te/pack/packer/start/presence.nvim/lua/presence/init.lua:348: in function 'on_done'
        ...pack/packer/start/presence.nvim/lua/presence/discord.lua:186: in function <...pack/packer/start/presence.nvim/lua/presence/discord.lua:185>

I don't think it's a problem with my system because elcord.el on Emacs works fine. It looks like the same error as #70 but I'm not using alpha-nvim and I tested it with a minimal configuration.

There's my config:

local use = require('packer').use
require('packer').startup(
    function()
        use 'wbthomason/packer.nvim' -- Package manageruse
        use 'andweeb/presence.nvim'
    end
)

-- The setup config table shows all available config options with their default values:
require("presence"):setup({
    -- General options
    auto_update         = true,                       -- Update activity based on autocmd events (if `false`, map or manually execute `:lua package.loaded.presence:update()`)
    neovim_image_text   = "The One True Text Editor", -- Text displayed when hovered over the Neovim image
    main_image          = "neovim",                   -- Main image display (either "neovim" or "file")
    client_id           = "793271441293967371",       -- Use your own Discord application client id (not recommended)
    log_level           = "debug",                        -- Log messages at or above this level (one of the following: "debug", "info", "warn", "error")
    debounce_timeout    = 10,                         -- Number of seconds to debounce events (or calls to `:lua package.loaded.presence:update(<filename>, true)`)
    enable_line_number  = false,                      -- Displays the current line number instead of the current project
    blacklist           = {},                         -- A list of strings or Lua patterns that disable Rich Presence if the current file name, path, or workspace matches
    buttons             = true,                       -- Configure Rich Presence button(s), either a boolean to enable/disable, a static table (`{{ label = "<label>", url = "<url>" }, ...}`, or a function(buffer: string, repo_url: string|nil): table)
    file_assets         = {},                         -- Custom file asset definitions keyed by file names and extensions (see default config at `lua/presence/file_assets.lua` for reference)
    show_time           = true,                       -- Show the timer

    -- Rich Presence text options
    editing_text        = "Editing %s",               -- Format string rendered when an editable file is loaded in the buffer (either string or function(filename: string): string)
    file_explorer_text  = "Browsing %s",              -- Format string rendered when browsing a file explorer (either string or function(file_explorer_name: string): string)
    git_commit_text     = "Committing changes",       -- Format string rendered when committing changes in git (either string or function(filename: string): string)
    plugin_manager_text = "Managing plugins",         -- Format string rendered when managing plugins (either string or function(plugin_manager_name: string): string)
    reading_text        = "Reading %s",               -- Format string rendered when a read-only or unmodifiable file is loaded in the buffer (either string or function(filename: string): string)
    workspace_text      = "Working on %s",            -- Format string rendered when in a git repository (either string or function(project_name: string|nil, filename: string): string)
    line_number_text    = "Line %s out of %s",        -- Format string rendered when `enable_line_number` is set to true (either string or function(line_number: number, line_count: number): string)
})

Neovim version

NVIM v0.8.1
Build type: RelWithDebInfo
LuaJIT 2.1.0-beta3

OS information

fedora 36

Steps to reproduce

1. Follow the installation steps.
2. Open a file.

Logs

[presence.nvim] Setting up plugin for linux
[presence.nvim] Using user-defined Discord client id
[presence.nvim] Using runtime path: /run/user/1000
[presence.nvim] Using Discord IPC socket path: /run/user/1000/discord-ipc-0
[presence.nvim] Checking Discord IPC socket at /run/user/1000/discord-ipc-0...
[presence.nvim] Using id 98584a77-cb5a-487f-96c0-bc52a0867ef7
[presence.nvim] Completed plugin setup
[presence.nvim] Getting nvim socket paths...
[presence.nvim] Executing command: ss -lx|grep "nvim.*/0"
[presence.nvim] Checked Discord IPC socket, looks good!
[presence.nvim] Handling BufEnter event...
[presence.nvim] Connecting to Discord...
[presence.nvim] Connected to Discord
[presence.nvim] Authorizing with Discord...
[presence.nvim] Wrote message to pipe
[presence.nvim] Got nvim socket paths: {}
[presence.nvim] No other remote nvim instances
Error executing vim.schedule lua callback: ...te/pack/packer/start/presence.nvim/lua/presence/init.lua:348: attempt to index local 'response' (a nil value)
stack traceback:
...te/pack/packer/start/presence.nvim/lua/presence/init.lua:348: in function 'on_done'
...pack/packer/start/presence.nvim/lua/presence/discord.lua:186: in function <...pack/packer/start/presence.nvim/lua/presence/discord.lua:185>

[isopropyletherperoxide]

Same error on Gentoo and NVIM 0.9.0

[isopropyletherperoxide]

I think I found the issue, the logging function on line 358 (provided below) in presence/init.lua indexes a nil value that may not be provided, removing the line makes the program work as intended

self.log:info(string.format("Authorized with Discord for %s", response.data.user.username))

[LRitzdorf]

Same issue here, on Arch and Neovim v0.9.1. Nearly identical error trace; the relevant line has moved slightly, but it's the same code that @isopropyletherperoxide indicated above.

Prior to experiencing this issue, I had not changed anything in my configuration (or even updated this extension, though doing that doesn't resolve the issue either). Maybe something has changed on Discord's end?

[TakenMC]

Same error and for me it only crashes when discord is open

[LRitzdorf]

Yep. That should be because it doesn't try to talk to Discord when the latter is closed.

[TakenMC]

well the crash happens cause response is nil so i added nil protection

[copypasteonly]

Adding this bit of code will fix it, don't know a thing about lua but just adding a protection if response != nil fixed it.

    if response ~= nil then
      self.log:info(string.format("Authorized with Discord for %s", response.data.user.username))
      self.is_authorized = true
    end

[szhanggg]

I don't know if this is happening with anyone else but after adding nil protection there isn't an error anymore but my RPC is dropping randomly after a little bit of time.

[LRitzdorf]

Feels to me like the nil response might indicate a larger issue with authorization (potentially explaining @grififth 's dropped connections?), but I'm unfortunately not familiar enough with Discord to really dig into this.