Slack Bolt

Bolt is the official, modular framework for building Slack apps with JavaScript, Python, or Java.

Bolt handles the essential boilerplate of Slack app development: OAuth flows, rate limiting, and request verification. It provides a structured interface for managing interactive components (Modals and Home tabs) and real-time events via the Slack Events API. Developers use it to deploy Slash commands and shortcuts while leveraging Socket Mode for local testing behind firewalls. The framework supports three core languages (JavaScript, Python, and Java) and uses a middleware-based architecture to process incoming payloads. It is the standard toolkit for building secure, scalable integrations on the Slack platform.

https://slack.dev/bolt-js/