Features

  • Execute queries, mutations and subscriptions
  • Comprehensive validation system
  • Real-time subscriptions via GraphQL over WebSocket (graphql-ws compatible)
  • Apollo Federation subgraph support
  • Incremental delivery with @defer and @stream directives
  • HTTP multipart transport for progressive data loading
  • Source generator based code generation from C# classes
  • Modern parser for executable and type system documents
  • Middleware-based execution pipelines
  • @oneOf directive support for polymorphic input types (Stage 3 RFC)