GraphQL Merging Strategies Cheat Sheet

Schema stitching, directives, and ownership

Last Updated: November 21, 2025

Focus Areas

Focus
Use directives or stitched schemas to merge fields
Keep ownership per service explicit and versioned

Commands & Queries

apollo router --config router.yaml
Run the gateway router
graphql mesos --schema gateway.graphql
Validate merged schema
curl -X POST http://router/graphql -d '{"query":"{ books { title } }"}'
Query merged schema

Summary

Merge GraphQL services transparently while keeping domain boundaries clear.

💡 Pro Tip: Document ownership per type and avoid conflicting names.
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