# walmartlabs/lacinia

GraphQL implementation in pure Clojure

Repository: https://github.com/walmartlabs/lacinia
Canonical: https://ross.abutalabs.com/products/lacinia
Homepage: http://lacinia.readthedocs.io/en/latest/
Language: Clojure
License: NOASSERTION
License Family: other
Topics: clojure, graphql
Last push: 2026-06-03T18:42:33+00:00

## Health v2 (maintenance only)
Score: 70/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 85, release rhythm 35, longevity 100
- inputs: {"age_days": 3458, "days_push": 91, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1862, forks 167 (observed 2026-08-28T04:05:45.446544+00:00)

## What it is
Lacinia is a pure Clojure implementation of the GraphQL specification, serving as a backend-agnostic GraphQL query execution engine. It supports EDN or SDL schema definitions, subscriptions, introspection, and plugs into any Clojure HTTP pipeline.

## Use cases
- build a GraphQL API server in Clojure
- execute GraphQL queries against my data layer
- add GraphQL subscriptions to a Clojure web service
- define a GraphQL schema using EDN or SDL
- serve GraphQL over an existing Pedestal HTTP pipeline

## When to choose
- you are building a Clojure or ClojureScript backend and want a full, spec-compliant GraphQL engine
- you want a data-oriented schema definition style that embraces Clojure idioms
- you need subscriptions, fragments, unions, and introspection support
- you want to plug GraphQL into an existing Ring/Pedestal HTTP stack

## When to avoid
- you want an ORM-like solution that maps GraphQL directly to database queries
- your stack is not on the JVM
- you need batteries-included HTTP handling without a companion library like lacinia-pedestal
- you prefer a framework with built-in resolvers and code generation

## Facets
- artifact type: library
- maturity: active
- function: graphql, api-framework, parser
- domain: web-development, backend, apis, developer-tools
- platform: jvm, jvm-scripting, cross-platform
- tags: clojure, graphql-execution-engine, sdl, subscriptions, antlr, edn-schema

## Member repositories
- walmartlabs/lacinia (main) score 70

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:45.446544+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:15:42.729120+00:00, confidence not recorded.
  - readme: https://github.com/walmartlabs/lacinia (fetched 2026-08-28T04:05:45.446544+00:00, sha b2298a2ca15c)
- Data as of 2026-08-30T08:39:29.467469+00:00.