Bolt for Python Demo App (PyCon 2021)
This is a basic example app showing off just some of the functionality available in Bolt for Python, including Socket Mode.
Make sure you have a development workspace where you have permissions to install apps. If you don’t have a development workspace setup, go ahead and create one.
We also recommend that you create a new app if you haven’t done so already.
Install Dependencies
pip install -r requirements.txt
Add Scopes & Install App into Workspace
In your App Config, after selecting your app, navigate to Socket Mode. Enable Socket Mode to generate and name a dedicated SLACK_APP_TOKEN for your app (this token can be located later at Basic Information > App-Level Tokens).
Next, navigate to OAuth & Permissions. In the Bot Token Scopes section, add the channels:history, app_mentions:read, commands and chat:write permissions.
Click Install App to install the app to your workspace and generate a bot token. This token will be used in your app as the SLACK_BOT_TOKEN environment variable.
Setup Environment Variables
This app requires that you setup environment variables.
You can locate these values by navigating to your App Config and visiting the Basic Information and OAuth & Permissions pages.
The SLACK_APP_TOKEN can be found under Basic Information > App-Level Tokens section.
The SLACK_BOT_TOKEN can be found under OAuth & Permissions > OAuth Tokens for Your Workspace.
export SLACK_APP_TOKEN=YOUR_SLACK_APP_TOKEN
export SLACK_BOT_TOKEN=YOUR_SLACK_BOT_TOKEN
If using OAuth, you'll use the following:
export SLACK_SIGNING_SECRET=YOUR_SLACK_SIGNING_SECRET
export SLACK_CLIENT_ID=YOUR_SLACK_CLIENT_ID
export SLACK_CLIENT_SECRET=YOUR_SLACK_CLIENT_SECRET
export SLACK_SCOPES=YOUR_SLACK_SCOPES
The above OAuth-related values can be found under Basic Information > App Credentials.
Run the App
Start the app with the following command:
python app.py
Subscribe to Events
On the Events Subscriptions page, after opting in, click Subscribe to bot events and add app_home_opened, app_mentioned, and message.channels to the events your app is subscribed to.
Create a Shortcut
On the Interactivity & Shortcuts page, create a new Global Shortcut with a Callback ID of launch_simple_modal.
Enable Home Tab
In the App Home page, navigate to the Show Tabs section and enable the Home Tab.
Define Redirect URL for OAuth (optional)
Bolt's Socket Mode receiver supports OAuth, but it is HTTP-based. This means that on the OAuth & Permissions page, you must provide an additional, publicly accessible Redirect URL.
For development purposes, we recommend using ngrok. Checkout this guide for setting it up.
The Redirect URL should be set to your ngrok forwarding address with the slack/oauth_redirect path appended and should look something like this:
https://3cb89939.ngrok.io/slack/oauth_redirect