Vio.DurableTask.DependencyInjection

Enables usage of dependency injection with DurableTask Framework.

Getting Started

See Vio.DurableTask.Hosting for using this package with the .NET generic host builder.

Features

• Registration of TaskActivity and TaskOrchestration to DI container, with lifetime control (Singleton/Scoped/Transient).
  • Activities and orchestrations not explicitly added to DI container are transient by default.
• Dependency-injected middleware for both activity or orchestration
  • <ITaskHubWorkerBuilder>.UseOrchestrationMiddleware<TMiddleware>()
  • <ITaskHubWorkerBuilder>.UseActivityMiddleware<TMiddleware>()
  • Middleware not explicitly added to DI container are transient by default.
• Builder style configuration via ITaskHubWorkerBuilder
  • Used for registering middleware, orchestrations, and activities.
  • Pulls IOrchestrationService from DI container, if available.
  • Can be used to add TaskHubClient to DI container as well.

Service Scope

A new IServiceScope is created for the duration of every OrchestrationInstance run. This scope will be used for all actions, middleware, and the orchestration itself and disposed after both the middleware & orchestration pipeline has finished execution. Scopes are not preserved between runs of the same OrchestrationInstance.