Apollo

1. Why Apollo Client

   What Apollo Client offers: declarative data fetching, a normalized cache, and state management for GraphQL.

2. Apollo Client Get Started

   Setting up Apollo Client with ApolloClient, InMemoryCache, and ApolloProvider.

3. Apollo Server Getting Started

   Building a GraphQL server with type definitions, resolvers, and context in Apollo Server.

4. Federation

   Apollo Federation: composing multiple subgraphs into a single supergraph.

5. Schema Composition

   How subgraph schemas are composed into a supergraph schema and composition errors.

6. GraphOS Router

   Running the GraphOS Router and its configuration.

7. Router Request Lifecycle

   How the router plans and executes queries across subgraphs.

8. Rover CLI

   Managing and publishing schemas with the Rover CLI.

9. Connectors

   Apollo Connectors for exposing REST APIs through GraphQL.

10. Sandbox

    Exploring and testing GraphQL operations in Apollo Sandbox.

11. Apollo MCP Server

    Exposing GraphQL operations as tools via the Apollo MCP Server.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.