Choreography vs Orchestration in serverless microservices

on YouTube ↗50m

" summary

Compares an event-driven Picadilly app (Cloud Storage, Cloud Functions, Cloud Run, Pub/Sub, Eventarc, Cloud Scheduler, Vision API, Firestore) with a Google Cloud Workflows rewrite that starts from a storage event and orchestrates vision calls, metadata writes, thumbnail and collage services. The rewrite eliminates two functions, collapses three event formats into a single HTTP format, reduces setup and code, and makes failures visible — workflows shows the failing step — while trading off YAML testing/debugging and lacking parallel steps at the time. Executions run successfully in the demo.

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" chapters (11)

1. 0:00Intro
2. 2:22Imagine a simple e-commerce transaction
3. 3:49Simple REST: Pros and Cons
4. 5:46Choreography (event-driven)
5. 6:40Choreography: Pros and Cons
6. 9:31Imagine a more complex transaction
7. 11:12Orchestration: Pros and Cons
8. 15:39Hybrid approach
9. 18:51CNCF Serverless Workflow
10. 27:57Choreographed (event-driven) architecture
11. 38:02Lessons Learned

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