Enable chatGPT as chatbot on slack.

chat-gpt-slack-bot.py

import os
import openai

from slack_sdk import WebClient
from slackeventsapi import SlackEventAdapter
from flask import Flask

# To create a chatbot on Slack, you will need to do the following steps:
#
# - Go to the Slack API website and sign in to your Slack account. Click on the "Start Building" button in the top
# right corner of the page.
#
# - Give your app a name and select a workspace to develop it in. Click on the "Create App" button to continue. Give
# your bot a display name and default username, and then click on the "Add Bot User" button.
#
# - Your bot user will now be created, and you will see an "Install App" button on the page. Click on this button to
# install your app to your workspace. Follow the prompts to authorize the app and install it to your workspace. Once
# the app is installed, you will see an "Install App" success message, and you will be redirected to the app's
# management page.
#
# - In the "Add an OAuth Scope" dialog, select chat:write scope from the list of available scopes.
#
# - Enable event subscription and add message.channels event to the list of events. You can also add message.groups
# and message.im events if you want your bot to respond to messages in private channels and direct messages.
#
# - Add the url of your server to the "Request URL" field. You can use ngrok to expose your local server to the
# internet. You can also use the url of your server if it is accessible from the internet. - Click on the "Save
# Changes" button to save your changes.

app = Flask(__name__)

slack_web_client: WebClient = WebClient(token=os.environ.get("SLACK_BOT_OAUTH_TOKEN"))
slack_events_adapter = SlackEventAdapter(os.environ.get("SLACK_SINGING_SECRET"), "/slack/events", app)
openai.api_key = os.environ.get("OPENAI_API_KEY")


@slack_events_adapter.on("message")
def message(payload):
    event = payload.get("event", {})
    channel_id = event.get("channel")
    user_id = event.get("user")
    text = event.get("text")

    if user_id != "U04G5G98F6F":
        response = openai.Completion.create(model="text-davinci-003",
                                            prompt=text + ", answer me with a rhyme from the Grinch movie",
                                            temperature=0.8,
                                            max_tokens=250)

        slack_web_client.chat_postMessage(channel=channel_id,
                                          text=response["choices"][0]["text"])


if __name__ == "__main__":
    app.run(host="0.0.0.0", port=3000)