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Apollo Federation

Federated Schemas

Overview Schema Types Schema Composition Sharing Types (Value Types)

Federation Reference

Federation Changelog Federation Directives Composition Rules

Subgraph Reference

Federation Subgraphs Specification Subgraph Specific Fields Compatible Subgraph Libraries

Development and Tooling

Query Plans Composition Hints Errors

From Federation 1 to 2

Upgrade Guide Federation 2 Backwards Compatibility

Entities

Entity Essentials

Entity Fields Advanced Keys Entity Interfaces

Entity Guides

Entity Best Practices Migrate Fields Resolve Another Subgraph's Fields Enforce Ownership Use Contexts

Schema Design Guides

Schema Design Principles

Demand Oriented Schema Design Naming Conventions Namespacing

Server-Driven UI

Basics Schema Design Client Design

Data Handling Techniques

Handling the N+1 Problem Nullability Interfaces Response Type Pattern Errors as Data Aggregating Data Graph Identities

Schema Development and Evolution

Mocking to Unblock Development Deprecations Distributed Orchestration Migrating from a Monolith Migrating from Schema Stitching

Products

Apollo GraphOS PlatformManage, observe, and scale your graph.Apollo ConnectorsConnect REST APIs to your graph declaratively.Apollo FederationFederate multiple subgraphs into a single supergraph.Rover CLIInteract with your graph from the command line.Apollo RouterRun and configure your graph gateway.Apollo OperatorDeploy and manage Apollo Router on Kubernetes.

Open source

Apollo Client (Web)Simplify GraphQL data management in web apps.Apollo iOSSwift-first GraphQL client for iOS.Apollo KotlinKotlin-first GraphQL client for Android and JVM.Apollo ServerBuild GraphQL servers with Node.js.Apollo MCP ServerExpose GraphQL tools to AI agents with MCP.IDE SupportEnhance your development workflow with IDE support.

Schema Design

Design a unified data layer with Apollo Federation

Schemas define the structure, types, and relationships to orchestrate your data and connected data sources, enabling precise querying and consistent communication between clients and servers.

Intro to Apollo Federation

Learn the benefits of combining your APIs into a unified GraphQL API with Apollo Federation as your API orchestration layer.

Intro to Entities

Learn to define and use the fundamental shared object type of Apollo Federation.

Schema Design Guides

Naming Conventions

Conventions and considerations for types, fields, and arguments.

Namespacing

Organize root-level operation fields into namespaces.

Schema Design Tools

Schema Proposals

GraphOS Schema proposals offer centralized schema change management, fostering collaboration and strengthening governance.

IDE Support

Apollo provides plugins and extensions for IDEs like VS Code and JetBrains to enable syntax highlighting, intelligent autocomplete, inline performance info and more.