Class DaprStableJobCallbackMethodProvider

Namespace

Virtufin.Api.Services

Assembly

Virtufin.Api.dll

Serves the Dapr scheduler's job callback on its stable route, /dapr.proto.runtime.v1.AppCallback/OnJobEvent.

Why this exists: the Dapr runtime (confirmed on 1.18.1) delivers scheduled jobs to AppCallback/OnJobEvent — the stable service, per dapr/dapr's own appcallback.proto. The .NET SDK lags it: the generated code in Dapr.Protos 1.18.2 contains OnJobEventAlpha1 on AppCallbackAlpha and no OnJobEvent anywhere, so DaprAppCallbackService could only ever bind the alpha route. Nothing served the route Dapr actually calls, the request matched no endpoint, and it was rejected 401 by ApiKeyHttpMiddleware (which exempts only requests whose matched endpoint carries GrpcMethodMetadata). Net effect: **no scheduled trigger ever fired**, while Dapr retried roughly once a second forever.

Registering the method here rather than regenerating appcallback.proto into this repo is deliberate: the request and response types already exist in Dapr.Protos and are reused as-is, so there is no second copy of the Dapr message types to collide with the SDK's (the CS0433 duplicate-type trap this codebase has hit before). Only the service/method *name* differs.

Because the endpoint is produced through the normal gRPC service-model pipeline it carries GrpcMethodMetadata, so ApiKeyHttpMiddleware lets it through to ApiKeyInterceptor, which exempts the /dapr.proto.runtime.v1.AppCallback/ prefix — the sidecar cannot present an API key.

Both routes stay live: the alpha one for older runtimes, this one for current ones. They share a single handler, so behaviour cannot drift. Once the SDK generates the stable method, this provider can be replaced by a plain override OnJobEvent on DaprAppCallbackService.

public sealed class DaprStableJobCallbackMethodProvider : IServiceMethodProvider<DaprAppCallbackService>

Inheritance

object

DaprStableJobCallbackMethodProvider

Implements

IServiceMethodProvider<DaprAppCallbackService>

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Methods

OnServiceMethodDiscovery(ServiceMethodProviderContext<DaprAppCallbackService>)

Called to execute the provider.

public void OnServiceMethodDiscovery(ServiceMethodProviderContext<DaprAppCallbackService> context)

Parameters

context ServiceMethodProviderContext<DaprAppCallbackService>

The ServiceMethodProviderContext<TService>.