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What is graphql-js?

skevy/graphql-js — explained in plain English

Analysis updated 2026-07-17 · repo last pushed 2019-08-20

★ 2JavaScriptAudience · developerComplexity · 3/5DormantSetup · moderate

In one sentence

The core JavaScript library for defining a GraphQL schema and validating/executing queries against it, the reference implementation engineers use to build their own GraphQL servers.

Mindmap

mindmap
  root((repo))
    What it does
      Define data schema
      Validate queries
      Execute queries
    Tech stack
      JavaScript
      GraphQL
    Use cases
      Build GraphQL server
      Implement spec
      Connect to a backend
    Audience
      Backend engineers
      Tool builders
    Origin
      From Facebook
      Reference implementation
    Setup
      Technical preview
      Not production server

Code map

Detail Auto

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filefunction / class

What do people build with it?

USE CASE 1

Define a schema that describes what data and fields your application exposes.

USE CASE 2

Validate incoming queries against your schema before running them.

USE CASE 3

Build a custom GraphQL server on top of this core library connected to your own database.

What is it built with?

JavaScriptGraphQL

How does it compare?

skevy/graphql-js3imed-jaberi/cryptography-si-isamm3imed-jaberi/koa-isomorphic-router
Stars222
LanguageJavaScriptJavaScriptJavaScript
Last pushed2019-08-202021-09-252021-02-06
MaintenanceDormantDormantDormant
Setup difficultymoderateeasyeasy
Complexity3/51/52/5
Audiencedeveloperresearcherdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 1h+

This is core plumbing, not a ready-to-deploy server, you must connect it to your own backend.

Copy-paste prompts

Prompt 1
Show me how to define a GraphQL schema with a User type using graphql-js.
Prompt 2
Help me write a resolver function that connects a graphql-js schema to my database.
Prompt 3
Explain how graphql-js validates and executes an incoming query step by step.
Prompt 4
Walk me through building a minimal GraphQL server using graphql-js as the foundation.

Frequently asked questions

What is graphql-js?

The core JavaScript library for defining a GraphQL schema and validating/executing queries against it, the reference implementation engineers use to build their own GraphQL servers.

What language is graphql-js written in?

Mainly JavaScript. The stack also includes JavaScript, GraphQL.

Is graphql-js actively maintained?

Dormant — no commits in 2+ years (last push 2019-08-20).

How hard is graphql-js to set up?

Setup difficulty is rated moderate, with roughly 1h+ to a first successful run.

Who is graphql-js for?

Mainly developer.

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