Grafbase GraphQL Federation Gateway
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Unified GraphQL federation gateway that composes multiple data sources into a single schema, offering governance, analytics, and seamless integration for enterprise APIs.
Grafbase GraphQL Federation Gateway Overview
What is Grafbase GraphQL Federation Gateway?
Grafbase GraphQL Federation Gateway enables you to compose all your data sources—databases, micro‑services, third‑party APIs—into a single, unified GraphQL graph. It provides advanced governance, analytics, and performance features to help teams evolve their APIs without breaking existing clients.
How to use Grafbase GraphQL Federation Gateway?
- Define subgraph schemas – Create individual GraphQL schemas for each data source.
- Configure federation – Use the
@linkand@keydirectives to expose entities across subgraphs. - Deploy the gateway – Run the gateway binary (built with Rust/WASM) or use the provided Docker image.
- Consume the unified API – Point your GraphQL clients to the gateway endpoint; the gateway resolves queries across all subgraphs automatically.
Key Features of Grafbase GraphQL Federation Gateway
- Schema Composition – Automatic stitching of multiple subgraph schemas into a single federated schema.
- Governance & Analytics – Built‑in metrics, query tracing, and versioning controls.
- High Performance – Rust‑based runtime with optional WebAssembly extensions for custom resolvers.
- Self‑Hosted & Managed Options – Deploy on your own infrastructure or use Grafbase’s hosted service.
- Developer tooling – CLI for schema validation, introspection, and local testing.
Use Cases of Grafbase GraphQL Federation Gateway
- Micro‑service Architecture – Expose a single GraphQL endpoint that aggregates responses from many micro‑services.
- Legacy System Integration – Wrap existing REST or SOAP services with GraphQL subgraphs and federate them.
- Multi‑tenant SaaS Platforms – Provide isolated subgraphs per tenant while maintaining a unified API surface.
- Data Mesh Implementations – Enable domain‑owned data products to be queried centrally.
FAQ from the Grafbase GraphQL Federation Gateway
Q: Do I need to write custom resolvers? A: Only for data sources that cannot be directly exposed via GraphQL. The gateway can delegate to existing GraphQL services out‑of‑the‑box.
Q: Is there support for authentication? A: Yes, the gateway integrates with JWT, API keys, and OAuth providers through middleware configuration.
Q: Can I run the gateway in a serverless environment? A: The lightweight Rust binary can be packaged as an AWS Lambda layer or deployed on Cloudflare Workers via WebAssembly.
Q: How does schema versioning work? A: The gateway tracks schema changes and can enforce compatibility policies, preventing breaking updates from reaching clients.
Q: What monitoring options are available? A: Built‑in Prometheus metrics, request tracing, and a dashboard in the Grafbase Cloud console.
Grafbase GraphQL Federation Gateway's README
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