Polyglot GraphQL Federation
5 articles in this series
Polyglot GraphQL Federation: Part 1 - The Monolith's Breaking Point
Why monolithic GraphQL APIs collapse under the weight of growing teams and domains. An introduction to GraphQL Federation 2 and the architecture behind a polyglot e-commerce platform.
AArthur Costa
Polyglot GraphQL Federation: Part 2 - Three Languages, One Schema
How Java, Go, and TypeScript each implement GraphQL Federation 2 subgraphs with entity resolution, schema directives, and database-per-service isolation in a real e-commerce platform.
AArthur Costa
Polyglot GraphQL Federation: Part 3 - When GraphQL Meets gRPC and REST
GraphQL is not the only protocol in a federated platform. This article explores how gRPC handles internal Java-to-Java communication while REST powers Stripe payment integration in Go.
AArthur Costa
Polyglot GraphQL Federation: Part 4 - Kong, Apollo Router, and Query Planning
How two gateways compose into a secure, observable API layer with intelligent query planning across subgraphs.
AArthur Costa
Polyglot GraphQL Federation: Part 5 - Observability Across the Stack
Implement end-to-end observability for polyglot GraphQL federation with OpenTelemetry, Tempo, Prometheus, Loki, Alloy, and Pyroscope, including tail sampling, SLOs, and cross-signal correlation.
AArthur Costa