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deepmind.google·6d ago
AI Engineering
Lobsters·20d ago·5 min read
Comparing Obelisk with Temporal and Restate
TL;DR
A small workflow was implemented using Obelisk, Temporal, and Restate to compare their Rust APIs and architectural differences. Obelisk operates as a workflow runtime, while Temporal and Restate function as orchestrators with separate service endpoints.
✦ Why It Matters
Evaluate which workflow tool best fits your application's architecture and deployment needs today.
Key Takeaways
- Explore Obelisk for integrated workflow runtime capabilities.
- Consider Temporal for orchestrating workflows with separate service endpoints.
- Utilize WIT for defining typed interfaces in your applications.
- Assess activity isolation features to enhance error handling in workflows.
Full Summary
Obelisk, Temporal, and Restate are tools that allow functions to continue processing even when their original context disappears. The key difference lies in their architecture: Obelisk is a workflow runtime that directly loads and executes application components, whereas Temporal and Restate act as orchestrators, running code in separate deployed Workers or service endpoints.
A small workflow was created to fetch temperature data from Open-Meteo for Amsterdam and Paris in parallel, wait for a timer, and return the warmer city. This implementation tested their Rust APIs, focusing on determinism boundaries, activity isolation, and deployment models.
Notably, Obelisk uses WIT (Web Interface Types) to define typed interfaces, enhancing type safety and concurrency. The findings indicate that each tool has unique strengths in managing workflows, which can influence deployment strategies and error handling.