Graphql Yoga

GraphQL Yoga is The Guild's battle-tested GraphQL server — spec-compliant, edge-runtime compatible, and designed for production use with first-class subscriptions (WebSocket or SSE), error masking, and an extensible plugin system. For agents interacting with GraphQL APIs: GraphQL Yoga is commonly used as the server layer in products Rhumb reviews, making its characteristics relevant for understanding API surfaces. For teams building APIs: it's a reliable, low-ceremony GraphQL server. Confidence is docs-derived.

npm install graphql-yoga. createYoga({ schema }) is the main entry point. Works standalone (standalone server), or as middleware for Express/Fastify/Koa, or as a Cloudflare Worker/Edge Function handler. Schema defined with graphql-js schema or code-first libraries (Pothos, TypeGraphQL). Subscriptions via WebSocket or Server-Sent Events. Batching and persisted queries supported. File upload: multipart request handling built-in.

No GraphQL Yoga API key — open-source library. Authentication is application-level (JWT verification, session checks in context factory). Standard bearer/cookie auth wired into the server context. Open-source MIT license (The Guild). No hosted service auth required.

Error masking: production mode hides internal error messages; development mode shows full stack traces. Plugin system for cross-cutting concerns (logging, tracing, auth). Subscription connection lifecycle managed by Yoga. Fetch API-native design ensures compatibility across runtimes. Active GitHub (dotansimha/graphql-yoga). Well-maintained by The Guild team.

the-guild.dev/graphql/yoga-server/docs covers installation, schema setup, subscriptions, file uploads, framework integration, and plugins. Getting started: npm install graphql-yoga, define schema, first query in under 10 minutes. Open-source (GitHub: dotansimha/graphql-yoga). Community via The Guild Discord.