Transaction Continuity

Planned page

This is the third page of the Fastify framework track. The detailed workflow and code will be added in a later brief, after the Tenant-Aware API is established.

Purpose

Show multiple model operations participating in one execution transaction without introducing Fastify-specific persistence logic.

Planned scope

• Begin with a verified adapter boundary and working tenant-specific persistence.
• Establish one transaction boundary and explain who owns its completion.
• Carry the active ClientSession through AmbitenContext into participating model operations.
• Demonstrate both successful commit and rollback after a deliberate failure.
• Verify persisted results, not only HTTP status codes or transaction log messages.

Target checkpoint

Fastify Request → AmbitenContext → Transaction Boundary
                                         ↓
                                Shared ClientSession
                                         ↓
                               Multiple Model Operations
                                         ↓
                                  Commit / Rollback

This page will require a transaction-capable MongoDB deployment. Transactions are not enabled in the overview. The eventual walkthrough must also distinguish participating MongoDB operations from external effects such as email, file storage, or queue publishing.

Continue the track

Previous: Runtime Boundary & Tenant-Aware API.

Next: Middleware, Instrumentation & Production Notes, also planned.