Linked Role example app

This repository contains the documentation and example for a linked role bot.

❇️ A version of this code is also hosted on Glitch 🎏

Project structure

All of the files for the project are on the left-hand side. Here's a quick glimpse at the structure:

├── assets          -> Images used in this tutorial
├── src
│   ├── config.js   -> Parsing of local configuration
│   ├── discord.js  -> Discord specific auth & API wrapper
│   ├── register.js -> Tool to register the metadata schema
│   ├── server.js   -> Main entry point for the application
│   ├── storage.js  -> Provider for storing OAuth2 tokens
├── .env -> your credentials and IDs
├── .gitignore
├── package.json
└── README.md

Running app locally

Before you start, you'll need to create a Discord app with the bot scope

Configuring the app is covered in detail in the tutorial.

Setup project

First clone the project:

git clone https://github.com/discord/linked-roles-sample.git

Then navigate to its directory and install dependencies:

cd linked-roles-sample
npm install

Fetch the credentials from your app's settings and add them to a .env file. You'll need your bot token (DISCORD_TOKEN), client ID (DISCORD_CLIENT_ID), client secret (DISCORD_CLIENT_SECRET). You'll also need a redirect URI (DISCORD_REDIRECT_URI) and a randomly generated UUID (COOKIE_SECRET), which are both explained below:

DISCORD_CLIENT_ID: <your OAuth2 client Id>
DISCORD_CLIENT_SECRET: <your OAuth2 client secret>
DISCORD_TOKEN: <your bot token>
DISCORD_REDIRECT_URI: https://<your-project-url>/discord-oauth-callback
COOKIE_SECRET: <random generated UUID>

For the UUID (COOKIE_SECRET), you can run the following commands:

$ node
crypto.randomUUID()

Copy and paste the value into your .env file.

Fetching credentials is covered in detail in the linked roles tutorial.

Running your app

After your credentials are added, you can run your app:

$ node server.js

And, just once, you need to register you connection metadata schema. In a new window, run:

$ node src/register.js

Set up interactivity

The project needs a public endpoint where Discord can send requests. To develop and test locally, you can use something like ngrok to tunnel HTTP traffic.

Install ngrok if you haven't already, then start listening on port 3000:

$ ngrok http 3000

You should see your connection open:

Tunnel Status                 online
Version                       2.0/2.0
Web Interface                 http://127.0.0.1:4040
Forwarding                    http://1234-someurl.ngrok.io -> localhost:3000
Forwarding                    https://1234-someurl.ngrok.io -> localhost:3000

Connections                  ttl     opn     rt1     rt5     p50     p90
                              0       0       0.00    0.00    0.00    0.00

Copy the forwarding address that starts with https, in this case https://1234-someurl.ngrok.io, then go to your app's settings.

On the General Information tab, there will be an Linked Roles Verification URL. Paste your ngrok address there, and append /linked-role (https://1234-someurl.ngrok.io/linked-role in the example).

You should also paste your ngrok address into the DISCORD_REDIRECT_URI variable in your .env file, with /discord-oauth-callback appended (https://1234-someurl.ngrok.io/discord-oauth-callback in the example). Then go to the General tab under OAuth2 in your app's settings, and add that same address to the list of Redirects.

Click Save Changes and restart your app.

Other resources

Read the tutorial for in-depth information.
Browse https://github.com/JustinBeckwith/fitbit-discord-bot/ for a more in-depth example using the Fitbit API
Join the Discord Developers server to ask questions about the API, attend events hosted by the Discord API team, and interact with other devs.

discord/linked-roles-sample

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