Add Smithy server code generator for Java, Go, Rust, and C++#960
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Add Smithy server code generator for Java, Go, Rust, and C++#960
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Adds a comprehensive Smithy server code generator that supports multiple target languages: - Core: Smithy JSON AST parser and model representation - Java: Service interfaces, handlers, routers with CompletableFuture - Go: Interfaces, http.Handler implementations, JSON struct tags - Rust: Async traits, Axum handlers, Serde derives - C++: Abstract classes, nlohmann/json serialization Features: - Generates structures, enums, unions, and error types - HTTP trait support for RESTful APIs - Builder pattern for all structures - Comprehensive test coverage for all generators - Bazel build rules (smithy_java_server, etc.) - Example petstore model https://claude.ai/code/session_018zhtbAsziUBuvMXKEkigpo
Adds WebSocket support as a custom protocol extension to the Smithy server generators for Java, Go, Rust, and C++. New traits (smithy.ws namespace): - @websocket: Marks a service as WebSocket-based - @Onconnect: Handler for connection establishment - @onDisconnect: Handler for connection termination - @OnMessage: Handler for incoming messages with route parameter - @subscribe/@publish: For pub/sub patterns Core changes: - Service.isWebSocket() to detect WebSocket services - Operation WebSocket helpers (isWebSocketConnect, getWebSocketRoute, etc.) - Trait constants for all WebSocket traits Generator updates: - Java: WebSocketHandler with session management, message routing, broadcast - Go: gorilla/websocket handler with session map, broadcast, action routing - Rust: axum WebSocket with tokio broadcast channels, futures streams - C++: Abstract WebSocketSession, handler with mutex-protected sessions Runtime additions (Java): - WebSocketSession interface with test implementation - WebSocketMessage with JSON parsing/serialization - WebSocketHandler interface for lifecycle methods Example: - chat.smithy/chat.json: Real-time chat service with rooms, messages Tests: - Java: WebSocket service detection, handler generation, runtime classes - Go: WebSocket handler generation, message routing, broadcast methods https://claude.ai/code/session_018zhtbAsziUBuvMXKEkigpo
…yed apps Analyzes MoonBase service patterns across Java, Go, Rust, and C++ domains and documents gaps between Smithy-generated code and production features: - Middleware/interceptor chains - gRPC support - OpenTelemetry metrics and tracing - RFC 7807 error handling - Rate limiting - Configuration management - Input validation patterns https://claude.ai/code/session_018zhtbAsziUBuvMXKEkigpo
Deploying moonbase-flippy-mem with
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Summary
This PR introduces a comprehensive Smithy server code generator that creates server implementations from AWS Smithy models for multiple languages (Java, Go, Rust, and C++). The implementation includes core model parsing, code generation utilities, and Bazel build rules for seamless integration.
Key Changes
SmithyModel,Service,Operation,Shape,Member, andTraitclasses to represent parsed Smithy models with full support for shapes, operations, traits, and WebSocket operationsCodeGeneratorinterface andCodeWriterutility class for language-agnostic code generation with proper indentation and formatting supportNameUtilsclass with conversion functions (camelCase, PascalCase, snake_case, kebab-case) and keyword escaping for Java, Go, Rust, and C++smithy.bzlwith rules forsmithy_java_server,smithy_go_server,smithy_rust_server, andsmithy_cpp_server, plus a combinedsmithy_servermacro for multi-language generationcore/(model and utilities),generators/(language-specific generators),runtime/(runtime libraries),bazel/(build rules), andexamples/(sample models)Notable Implementation Details
Traitclass provides helper methods for common Smithy traits (HTTP, documentation, validation, WebSocket)CodeWritersupports flexible indentation management with stack-based tracking for nested blocksNameUtilsincludes comprehensive keyword sets for all four target languages to prevent naming conflictshttps://claude.ai/code/session_018zhtbAsziUBuvMXKEkigpo