Project

• A lightweight Twitch chat bot application.
• Integrates YouTube link requests from the Twitch chat stream to the desired YouTube playlist.
• Output YouTube links to a file to allow for additional cross-referencing and verification of Twitch chat stream requests.

Motivation

Allow for reaction-based Twitch streamers to streamline YouTube requests to his/ her playlist. The playlist may then be used for shared viewing within his/ her Twitch community or used for personal leisure.

Technology Stack

• Node JS/ Javascript
• Google Cloud Platform

Prerequisites and Setup

Required accounts

• Google Cloud Platform account
• Twitch account
• YouTube account

Get your Twitch OAuth token to call Twitch API & configure /const.js with Twitch account info.

1. Register and log into Twitch developer console.
2. Select the Applications tab, and click + Register Your Application.
3. Enter desired app name and http://localhost as the OAuth redirect URL. Then select Chat Bot as the app category.
4. Click Create, and the app is created and listed on the dashboard as a registered app.
5. Click Manage to see the client ID.
6. Connect to Twitch Chat Password Generator to authorize access to desired Twitch account.
7. Copy the generated OAuth login password, and paste it to replace value for OAUTH_TOKEN in /const.js. Also replace value for CHANNEL_NAME with desired Twitch channel alias.

Get and integrate your YouTube OAuth token to call YouTube API & setup necessary scopes for the OAuth consent.

1. Log into Google Developers Console and create a new project.
2. Open the Credentials page in the API & Services console and create an OAuth client ID with Desktop app as the Application type, and enter desired Desktop client name.
3. Click Create, and the OAuth client is created with the associated Client ID and Client Secret values.
4. Download the associated JSON file for the OAuth client to the project's working directory; preferably under a new /resources folder as client_secret.json.
5. Open the OAuth consent screen in the API & Services console and select External as the User Type, then click Create.
6. Provide the desired Application name, then click Save to persist the new OAuth consent for editing later.
7. Open the Library page in the API & Services console and search for 'YouTube', and click on the search result YouTube Data API v3.
8. Activate the YouTube API by clicking Enable, and verify the API details in the loaded Overview page.
9. Click on the Navigation menu and go back to APIs & Services console -> OAuth consent screen.
10. Edit App to go to the OAuth consent screen details.
11. Under Scopes for Google APIs, click Add scope and check the following scopes:
    • ../auth/youtube.force-ssl
    • ../auth/youtubepartner
    • ../auth/youtube
12. Click Add, and then click Save to persist the scopes to the current Oauth consent.

Authorize the bot application with YouTube API after the OAuth token and scope setup.

1. Run the application with 'npm start' command with a supported console.
2. Follow the commands to authorize the app by visiting the loaded Google Cloud account URL.
3. Follow the instructions, and then copy-and-paste the generated code back into the command prompt.

Startup and Execution

1. Overwrite the playlistId in the /quickstart.js:: addToPlaylist with YouTube playlist under your account; retrieve playlistId from the URL.
2. Initiate Twitch chat stream associated with Twitch OAuth token setup.
3. Run the application with 'npm start'.
4. Verify Twitch and Youtube connection in console, and bot message initiated in Twitch chat.

   command 'npm start' will fire up the bot; console logging reveals connection status to Twitch chat stream and YouTube Data API; a welcome message from the bot will be sent to the Twitch chat box.

   
5. Send YouTube links to the Twitch chat box.
6. Verify console logging of each YouTube link; invalid links will not be logged.

   request YouTube links to the Twitch chat stream; console logging reveals each valid YouTube link in the format @user - videoID.

   
7. Verify /output/youtube.list for additional info of each YouTube link request.
8. Verify items added to the YouTube playlist associated with account and playlistId.

   youtube.list output will display each valid YouTube link in the format @user - youtubeURL; each YouTube link will be listed as a playlist item under the corresponding YouTube playlist.