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Discord OAuth2 User IDs (Guild IDs)

If you're developing a Discord bot and you want to obtain OAuth2 User IDs (Guild IDs) and user data, you need to use the Discord API and implement OAuth2 authentication in your bot. Here's a step-by-step guide on how to do this:

Create a Discord Application:
Go to the Discord Developer Portal and create a new application. Give your application a name and description.

Enable OAuth2:
In the Developer Portal, go to your application's settings. Select the "OAuth2" tab. Under "OAuth2 URL Generator," select the scopes you need. For accessing user data in guilds, you'll likely need the identify and guilds scopes. Copy the generated OAuth2 URL.

Bot Setup:
If you haven't already, create a bot for your application. In the Developer Portal, go to the "Bot" tab and click "Add Bot."

OAuth2 Flow:
When a user clicks the OAuth2 URL you generated, they will be redirected to Discord's authorization page. They will need to authorize your bot to access their user data in guilds. After authorization, Discord will provide you with an authorization code.

Exchange Code for Access Token:
Your bot server needs to exchange the authorization code for an access token by making a POST request to Discord's token endpoint. You can find the details in the Discord API documentation.

Access User Data in Guilds:
With the access token, you can make requests to the Discord API to access user data in specific guilds. For example, you can use the /users/@me/guilds endpoint to get a list of guilds the user is in.

Handle Data:
Handle the data according to your bot's requirements. You can use this data to interact with users and perform actions within specific guilds.

Refresh Tokens:
Access tokens typically have an expiration time. You should implement a token refresh mechanism to ensure continuous access to the user's data.

Rate Limiting:
Be aware of Discord's rate limiting policies. Make requests responsibly and handle rate limits appropriately.

Protect Data:
Ensure the security of user data. Don't share sensitive user data without the user's explicit consent.

It's important to note that handling user data, especially in guilds, comes with responsibilities related to user privacy and data security. Make sure your bot complies with Discord's Terms of Service and follows best practices for data protection.

Discord's API is well-documented, and you can find detailed information and code examples in the Discord API documentation.

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