TypeScript API reference

This is the complete guide to slackblocks' public TypeScript API. Use it to find the builder, setter, or validation error you need while building a message, modal, or home tab.

Most applications start with Message(), add blocks such as SectionBlock(), and call .build() once the payload is complete. Singular setters replace the previous value, collection setters append, and nested builders are materialized automatically. The result is the plain snake_case object expected by Slack.

The compatibility factories from earlier TypeScript releases remain available at the package root for v2 applications, but are intentionally omitted here. New code should use the fluent PascalCase API.

• Blocks
• Components
• Elements
• Composition Objects
• Payloads
• Utilities
• Errors