Slack Bot Builder

Slack Bot Builder

Patterns

Bolt App Foundation Pattern

The Bolt framework is Slack's recommended approach for building apps. It handles authentication, event routing, request verification, and HTTP request processing so you can focus on app logic.

Key benefits:

• Event handling in a few lines of code
• Security checks and payload validation built-in
• Organized, consistent patterns
• Works for experiments and production

Available in: Python, JavaScript (Node.js), Java

When to use: ['Starting any new Slack app', 'Migrating from legacy Slack APIs', 'Building production Slack integrations']

# Python Bolt App
from slack_bolt import App
from slack_bolt.adapter.socket_mode import SocketModeHandler
import os

# Initialize with tokens from environment
app = App(
    token=os.environ["SLACK_BOT_TOKEN"],
    signing_secret=os.environ["SLACK_SIGNING_SECRET"]
)

# Handle messages containing "hello"
@app.message("hello")
def handle_hello(message, say):
    """Respond to messages containing 'hello'."""
    user = message["user"]
    say(f"Hey there <@{user}>!")