Apollo Client fetchMore Duplicates or Drops Pages: Diagnosing Cache Merge Failures
A diagnostic guide to Apollo Client pagination failures: why fetchMore duplicates or drops pages, how to inspect the normalized cache, and when to escalate.
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Reducing API Latency with Apollo Client Cache Redirects
Learn how to use Apollo Client Type Policies to implement cache redirects, eliminating redundant network requests when moving from list views to detail views.
Solving the 'Vanishing List' Problem with Apollo Client Type Policies
Stop your paginated lists from disappearing. Learn how to use Apollo Client's typePolicies and merge functions to handle infinite scroll and custom cache keys.
Managing Apollo Client Cache Normalization and Local State
Learn how to implement Apollo Client cache normalization and local state management to ensure UI consistency and reduce redundant network requests.
Solving the N+1 Query Problem in Apollo Server with DataLoaders
Discover how Apollo Server’s DataLoader solves the N+1 query problem by batching and caching database requests, improving GraphQL API performance.
graphqlImplementing Apollo Federation: From Subgraphs to a Unified GraphQL Supergraph
Learn how to compose multiple GraphQL services with Apollo Federation, define shared entities, validate schemas, and deploy a gateway that stitches a supergraph for modular, team‑agnostic development.
Diagnosing Apollo Client Cache Inconsistency After Mutations
A step‑by‑step diagnostic guide for Apollo Client cache inconsistencies after mutations, with checks, fixes, and escalation paths.
Implementing Offset‑Based Pagination in Apollo Client with InMemoryCache
Learn how to store each page of a list under a unique cache key and use fetchMore to append new results without reloading the whole dataset.
reactApollo Client fetchMore Duplicates or Resets: A Cache Merge Diagnostic Guide
fetchMore can return the correct page while the normalized cache renders duplicates or snaps back to page one. Here is how to tell which cache setting is responsible.