Nitty Gritty Service Building

on YouTube ↗22m

" summary

Provides a concrete recipe for extracting a service from a Rails monolith: build a new payment API, dogfood a client packaged as a gem, and sever dependencies by extracting tables to a separate DB. Uses Active Model Serializers for stable payloads, wraps HTTP with Typhoeus for concurrent requests, and profiles with perf tools / stackprof to find hotspots (coupon calculator hogs ~21.5% of time, GC ~67%). Tests act as a contract and the extraction succeeds, cutting test suites and improving responsiveness.

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" chapters (9)

1. 0:00Start
2. 0:16What Is a Service
3. 1:43Faster Tests
4. 6:39Multiple Objects per Request
5. 8:54Client Models
6. 9:20Rapid Prototyping
7. 11:17Building a Communication Layer
8. 13:37Sever Dependencies
9. 15:29Improving the Performance

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