OBS Chat Bot (obschatbot)

A Twitch chat-bot that could directly interact with OBS Studio and Spotify. Please note this bot runs on broadcaster's side and is not hosted on a server.

Requirements

• python = 3.6
• requests

Usage

Installation

Extract to your working directory, and import obschatbot.py in OBS-Studio Scripts window.

Configuration

Default messages (optional)

You can set some messages for your bot to answer to users in the chat.

• "Help message" will appear before the list of known commands
• "Unknown command message" will spawn if someone try an unknown command (starting with "!" but an unknown keyword)
• "Welcome message" will spawn when starting the bot
• "Farewell message" will appear when stopping the bot

Twitch IRC (mandatory)

"Nickname" is the bot's username (existing Twitch account).
"Password" is the bot's OAuth generated password for Twitch (https://twitchapps.com/tmi/ - you must be logged in with your bot account if different from yours to confirm this step - Free)
"Channel" is your Twitch streaming channel name.

Services (optional)

Services are optional sets of commands for your bot, you can enable them by ticking the checkbox for each of them when the bot is offline.

Command Service

This service allows your bot to receive custom commands. Only moderators and broadcasters can define them.
The custom commands are stored in a text file, defined in the "Commands list" field.

adding a command

!cmd add <command name> <printed text> "add", "edit" and "update" have the same results.
"<command name>" with or without the "!" (exclamation mark) character will have the same result. Custom commands are always used with the "!" prefix.
"<printed text>" is the text returned by the custom command. It can support multiple arguments, for instance:

• !cmd add !so Shout out to {1} for being an awesome person, please visit https://twitch.tv/{1} where {1} will be replaced by the first argument following the custom command, like in "!so kholo" will result in "Shout out to kholo for being an awesome person, please visit https://twitch.tv/kholo" (I'm kholo by the way :D ) (and I... may... be that awesome! Who knows?)
• !cmd add !vs Hey look out, {1} and {2} are fighting! Taking the bets! where {1} will be replaced by the first argument, {2} by the second argument, and so on. "!vs kholo anonlogics" will result in "Hey look out, kholo and anonlogics are fighting! Taking the bets!" (anonlogics is my bot, powered by the very current script) (and I think it will beat the hell out of me)

It also supports multiple responses, separated with "||" (two vertical bars), that will be returned randomly when invoking the custom command, for instance:
!cmd add !dance (_\_) (_|_) (_/_)||\o\ |o| /o/ will make the "!dance" command returns either "(_\_) (_|_) (_/_)" or "\o\ |o| /o/"

removing a command

!cmd del <command name> "del", "delete" and "remove" have the same results.

custom commands

Added commands are triggered by calling their name prefixed with a "!" (exclamation mark) character, and can receive arguments if defined in the .

Dice Service

This service allows your viewers to roll dices in your chat room.

rolling a dice

!<n>d<f> where is the number of dices to roll, and the number of faces per dice. For instance: !5d6 will roll five dices with six faces each.

getting the last roll resuls

!lastrolls This command prints the last rolls for every viewer in the chat room who has rolled dices.

clearing the last roll results

!clearlast This command clears the last rolls for every viewer in the chat room.

Spotify Service

This service allows your viewers to add or remove song from a given playlist. This will requires you to have a developer account (you can create one at https://developer.spotify.com/ - Free) and to create an application in your dashboard (also free).
"Playlist ID" is the ID of the playlist you want to give your viewers controls to. You can get this information by right-clicking your playlist in Spotify, "Share">"Copy Playlist Link", pasting the URL in any notepad application, and keeping the part between ".../playlist/" and "?si=..." from the URL. For instance: in "https://open.spotify.com/playlist/1a1ABC2DE34FghIJKlmno5?si=1a2b34c5defa6b7c", keep the "1a1ABC2DE34FghIJKlmno5" part.
"Client ID" is your application Client ID (found in Spotify developer dashboard)
"Client Secret" is your application Client Secret (found in Spotify developer dashboard)
Once "Client ID" and "Client Secret" is set, you will have to authenticate the first time you'll start the bot. A web browser window should pop, requesting your authorization.

adding a song to the playlist

!addsong <query> This will search for a track with <query> keywords, and add the track to the playlist if found.

removing the last added song

!dellast Each viewer can remove the last song they added to the playlist during the current bot session using this command.

displaying the playlist

!playlist The bot will print the playlist URL.

Timed Message Service

This service allows your moderators as well as yourself to add some messages that will spawn every n minutes, like reminders or self-promotion for your social networks…
When two or more messages have the same interval, a 2 minutes offset will be iteratively added to each of them in order to avoid them to spawn at the same time.

adding a timed message

!addmsg <identifier> <interval> <message> where <identifier> is a unique keyword, which could be use to further delete the message if needed ; <interval> is the interval in minutes before the message spawn again ; and <message> is the full message you want to display.

deleting a timed message

!delmsg <identifier> where <identifier> is the unique keyword identifying the message

listing all the messages set

!listmsg this will list all the identifier currently set.

Start and stop

Simply use the "Start Bot" and "Stop Bot" buttons!

Current status

The bot is fully working as is, however no error or exception are currently catched.
Interaction with OBS is in progress (Manager Service) and, as far as I can tell, fully working (can switch scenes, toggle sources visibility, mute, unmute and change volume for audio sources) however source visibility toggling is currently making my OBS crash if used more than twice. As I'm only using OBS API, I'm not sure this is related to my script, maybe a bug in OBS or with my OS/computer. This service will need to be tested a bit more before being pushed in the repository.
Please be cautious using the Spotify Service while streaming: Live DMCA strike is a thing, and it's coming. I'll keep the SpotifyService there because rules can change, and I learnt to request Web API using OAuth writing this one and I don't want to let it go to waste, but it's usability may be a problem for legal reasons.