java-slack-sdk

Why we included this project

Slack's official SDK for the JVM is split into two modules. Bolt for Java is the framework: it handles events, slash commands, and message actions, so you write the bot logic instead of the platform plumbing. The lower-level API client is the right choice when you only need to call Slack's web APIs from an existing service. Because the SDK is written in Java, the same code runs from Kotlin, Groovy, or Scala, and Bolt ships adapters for Jetty, AWS Lambda, Google Cloud Functions, Micronaut, and Ktor, so the same app logic can be deployed in different hosting setups. Socket Mode support lets you run a bot without exposing a public HTTP endpoint, which keeps local development and firewall-bound deployments simple.