Package kalix.javasdk.action
Interface ActionContext
- All Superinterfaces:
Context
,MetadataContext
Context for action calls.
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Method Summary
Modifier and TypeMethodDescriptionThe origin subject of theCloudEvent
.<T> T
getGrpcClient
(Class<T> clientClass, String service) Get an Akka gRPC client for the given service name.metadata()
Get the metadata associated with this call.Methods inherited from interface kalix.javasdk.Context
materializer
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Method Details
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metadata
Metadata metadata()Get the metadata associated with this call.Note, this only returns call level associated metadata. For unary calls, this will be the same as the message metadata, but for streamed calls, it will contain metadata associated with the whole stream, so for example if this was a gRPC call, it will contain the HTTP headers for that gRPC call.
- Specified by:
metadata
in interfaceMetadataContext
- Returns:
- The call level metadata.
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eventSubject
The origin subject of theCloudEvent
. For example, the entity key when the event was emitted from an entity. -
getGrpcClient
Get an Akka gRPC client for the given service name. The same client instance is shared across components in the application. The lifecycle of the client is managed by the SDK and it should not be stopped by user code.- Type Parameters:
T
- The "service" interface generated for the service by Akka gRPC- Parameters:
clientClass
- The class of a gRPC service generated by Akka gRPCservice
- The name of the service to connect to, either a name of another Kalix service or an external service where connection details are configured under `akka.grpc.client.[service-name]` in `application.conf`.
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