graph-gophers/dataloader

Health v2 · maintenance only

Adoption not part of the score

1309 stars · 79 forks observed · 2026-10-15

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Go implementation of Facebook's DataLoader pattern for batching and caching data fetches, commonly used to avoid N+1 query problems in GraphQL servers. It provides batched loading with thunks and a pluggable, request-scoped in-memory cache.

Use cases

• batch database queries to avoid N+1 problems in a GraphQL API
• deduplicate and cache per-request data lookups in Go
• batch fetch users by IDs in a single round trip
• implement Facebook's DataLoader pattern in a Go backend
• reduce load on a backend service by coalescing concurrent key lookups

When to choose

• you're building a GraphQL server in Go and need batching/caching of resolvers' data fetches
• you have many concurrent lookups by key that can be coalesced into batched calls
• you want a request-scoped loader with a pluggable cache interface

When to avoid

• you need a long-lived process-wide cache - the built-in cache is intended only for short-lived loaders
• your project isn't in Go
• you don't have N+1 or duplicate-fetch problems and batching adds unnecessary complexity

Facets

library · maturity active

caching middleware databases web-development developer-tools go dataloader batching graphql request-scoped-cache thunk

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