Ruby Reactor vs dry-transaction vs Trailblazer: Choosing a Ruby Workflow Library in 2026

Four ways to orchestrate business logic in Ruby. One map to find yours. You're building something that involves multiple steps. Charge a card, send an email, update inventory. Simple. Then someone says "What if step 3 fails? What undoes steps 1 and 2?" and suddenly you're evaluating workflow libraries. There are four mainstream approaches in Ruby today — Ruby Reactor , dry-transaction , Trailblazer , and raw Sidekiq jobs. This guide helps you pick the right one — not by ranking them, but by mapping them to the problem you're actually solving. The 30-Second Decision Matrix If you only have 30 seconds, start here: You want... Pick... A simple pipeline — 3-5 steps, top-to-bottom, no parallelism dry-transaction Railway-oriented programming with success/failure tracks, already in the Trailblazer ecosystem Trailblazer A full saga orchestrator — DAG dependency resolution, Sidekiq async, auto-compensation, locks, dashboard Ruby Reactor One-off fire-and-forget jobs, no coordination needed Raw Sidekiq None of these are "better" than the others. They solve different problems. Let's walk through each one. Meet the Libraries dry-transaction (v0.16.0) dry-transaction is a thin, focused gem from the dry-rb ecosystem. It wraps a series of operations in a sequential pipeline with a clean step DSL: class CreateUser < Dry :: Transaction step :validate step :persist step :send_welcome_email def validate ( input ) = # ... def persist ( input ) = # ... def send_welcome_email ( input ) = # ... end Steps run top-to-bottom. If any step returns a Failure , the pipeline stops immediately — no further steps execute. It's a railway under the hood: each step can produce Success(value) or Failure(error) , and the pipeline routes accordingly. What it's great at: Simple, synchronous pipelines. It's the Ruby equivalent of an Either monad chained with bind — clean, predictable, and minimal. If you're already in the dry-rb ecosystem (dry-validation, dry-types, dry-monads), it fits naturally. What it d