How GraphQL Helped Create Scalability and Stability in the Retirement Space.
summary
Stacks replaces heavy REST fan-outs with a GraphQL gateway as a composition layer, using federation-style stitching, resolver batching (DataLoader patterns), persistent queries, complexity limits and a caching layer that stores precomputed hashes to revalidate eligibility and payroll results. Results show 30% latency improvement, 1 second faster load times and 50% server load reduction. Emphasis lands on resolver architecture, Grafana-backed observability, incremental rollout and keeping heavy aggregation on gateway resolvers rather than front-end orchestration.
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chapters (8)
- 0:00Introduction to retirement systems
- 1:48REST API challenges in retirement
- 5:59Moving to GraphQL at Stacks
- 9:09Eligibility checks in GraphQL
- 13:02Pushback from legacy systems
- 14:46Performance improvements with GraphQL
- 15:55Lessons learned from adoption
- 17:41Q&A on regulatory changes
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