Add /openapi ingress route to serve a merged OpenAPI spec#4538
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igalshilman wants to merge 1 commit intorestatedev:mainfrom
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Add /openapi ingress route to serve a merged OpenAPI spec#4538igalshilman wants to merge 1 commit intorestatedev:mainfrom
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Implements restatedev#3108. The ingress /openapi endpoint (previously stubbed as NotImplemented) now returns a merged OpenAPI 3.1 spec combining all registered services. Schema component names, $ref pointers, and JSON Schema titles (when present) are all aligned between per-service and merged specs using PascalCase naming with a service-level prefix. Examples: service "greeter", handler "greet" -> GreeterGreetRequest / GreeterGreetResponse service "concurrent_greeter", handler "claude_sonnet" -> ConcurrentGreeterClaudeSonnetRequest The prefix can be overridden via the "dev.restate.openapi.prefix" metadata key, which can be set at both the service and handler level. Handler-level takes precedence over service-level. Examples with metadata: service metadata: dev.restate.openapi.prefix = "Payments" -> PaymentsProcessRequest (instead of PaymentServiceProcessRequest) handler metadata: dev.restate.openapi.prefix = "Checkout" -> CheckoutProcessRequest (overrides service prefix for that handler) When set at the service level, the prefix is also used as the per-service OpenAPI spec title.
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Support /openapi on the ingress to serve a merged OpenAPI spec
Implements #3108.
The ingress /openapi endpoint (previously stubbed as NotImplemented)
now returns a merged OpenAPI 3.1 spec combining all registered services.
Schema component names, $ref pointers, and JSON Schema titles (when
present) are all aligned between per-service and merged specs using
PascalCase naming with a service-level prefix.
Examples:
service "greeter", handler "greet"
-> GreeterGreetRequest / GreeterGreetResponse
The prefix can be overridden via the "dev.restate.openapi.prefix"
metadata key, which can be set at both the service and handler level.
Handler-level takes precedence over service-level.
Examples with metadata:
service metadata: dev.restate.openapi.prefix = "Payments"
-> PaymentsProcessRequest (instead of PaymentServiceProcessRequest)
When set at the service level, the prefix is also used as the
per-service OpenAPI spec title.