Bivrost

"In Norse mythology, Bivrost is a burning rainbow bridge that reaches between Midguard and Asgard, the realm of the gods." - WikiPedia

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About

Bivrost is a asp.net core application that offers several overlay endpoints, hosts a Twitch.tv bot and bridges the two together to display chat events in OBS while streaming.

Getting Started

Running Locally

As long as you have the development dependencies installed, the application can be run on your bare metal machine.

1. Clone the repository: git clone https://github.com/NotMyself/bivrost.git.
2. Change directory into the cloned repository cd bivrost.
3. Run script scripts/local-init.
4. Run the command dotnet user-secrets set BIVROST_TWITCH_BOT_USER_NAME {bot-user-name}.
5. Run the command dotnet user-secrets set BIVROST_TWITCH_BOT_ACCESS_TOKEN {bot-access-token}.
6. Run the command dotnet user-secrets set BIVROST_TWITCH_BOT_CHANNEL {twitch-channel}.
7. Run the command dotnet user-secrets set BIVROST_TWITCH_CLIENT_ID {twitch-client-id}.
8. Run the command dotnet user-secrets set BIVROST_TWITCH_CLIENT_SECRET {twitch-client-secret}.
   • Note: You must supply valid values for the BIVROST_ environment variables, see this for instructions on how to obtain these values.
9. Run script scripts/local-start.

Running in Docker

The application can easily be executed locally with no development dependencies using Docker.

1. Clone the repository: git clone https://github.com/NotMyself/bivrost.git.
2. Change directory into the cloned repository cd bivrost.
3. Run script scripts/image-create.
4. Run script scripts/image-start.

Obtaining Twitch Access Tokens

Bivrost uses several bits of information to connect to stream chat.

In most cases, you can use your Twitch username for both the bot username and channel. This will make the bot appear as you in chat.

If you would like to have a seperate bot username from your own, you will need to create that account on Twitch and use it to generate your access token.

You will need to generate an OAuth authorization token with several specific scopes applied to it.

1. Navigate to Twitch Token Generator.
2. Select the Custom Scope Token option in the popup dialog.
3. Ensure the following scopes are enabled:
   1. user_read
   2. user_blocks_edit
   3. TODO: Figure out the exact scopes needed, for now select all.
4. Click the Generate Token! button.
5. You will be redirected Twitch, authenticate if needed.
6. Click the Authorize button to grant Twitch Token Generator concent to access your account with the listed scopes.
7. Verify you are not a robot.
8. Click the Copy button next to Access Token.

Bivrost also makes call directly to the Twitch APIs. This requires to you to register the application to get client crendentials.

1. Navigate to your Twitch Developer Console.
2. Click the Register Your Application button.
3. Add Bivrost to the Name field.
4. Add http://example.com to the OAuth Redirect URL field.
   • Note: Bivrost does not currently use oAuth based authentication, so this value is not used.
5. Select Application Integration from the Category dropdown.
6. Click the Create button.

Env Var	Note
BIVROST_TWITCH_BOT_USER_NAME	Twitch Account Username for Bot
BIVROST_TWITCH_BOT_ACCESS_TOKEN	OAuth Access Token for Twitch Account
BIVROST_TWITCH_BOT_CHANNEL	Twitch Chat Channel for Bot to join and listen.
BIVROST_TWITCH_CLIENT_ID	Twitch Application Client Id
BIVROST_TWITCH_CLIENT_SECRET	Twitch Application Secret

Screen Shots

Bivrost On Join Message

When the bot is successfully configured, it will announce it's arrival in chat like this:

Bivrost On Message Overlay

External Dependencies

.NET Core

Node 8

Docker

Platform Dependencies

• ASP.NET Core
• Vue.js

Features

• Chat Bot

Architecture

• Logging