graphql6 min read
DataLoader and the N+1 Problem — Batching Database Queries in Node.js
Master the N+1 problem with DataLoader. Learn batching strategies, per-request instances, cache management, and production patterns for Node.js APIs.
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Graphql
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graphql10 min read
GraphQL Federation — Composing a Unified API From Multiple Microservices
Build federated GraphQL APIs across microservices. Learn Apollo Federation architecture, @key and @external directives, entity resolution, router configuration, performance with DataLoader, query planning, cost limits, and observability.
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