Should I use transient or scoped?

Should I use transient or scoped?

Use Transient lifetime for the lightweight service with little or no state. Scoped services service is the better option when you want to maintain state within a request. Singletons are created only once and not destroyed until the end of the Application. Any memory leaks in these services will build up over time.

What is InstancePerLifetimeScope?

InstancePerLifetimeScope means a new instance of the service will be created for every lifetime scope which asks for your service. Each web request gets its own fresh lifetime scope, so in practice, more often than not, these two will do the exact same thing.

How do I get Autofac containers?

From Visual Studio, you can get it via NuGet. The package name is Autofac. Alternatively, the NuGet package can be downloaded from the GitHub repository (https://github.com/autofac/Autofac/releases).

What is Autofac C#?

Autofac is an open-source dependency injection (DI) or inversion of control (IoC) container developed on Google Code. Autofac differs from many related technologies in that it sticks as close to bare-metal C# programming as possible.

Is DbContext scoped or transient?

scoped service

This example registers a DbContext subclass called ApplicationDbContext as a scoped service in the ASP.NET Core application service provider (a.k.a. the dependency injection container). The context is configured to use the SQL Server database provider and will read the connection string from ASP.NET Core configuration.

Can Singleton use transient?

You can inject transient service to the singleton, but you should be aware that that transient service instance will have same lifetime as singleton it is injected in.

What is AsImplementedInterfaces?

AsImplementedInterfaces<TLimit>(IRegistrationBuilder<TLimit, ScanningActivatorData, DynamicRegistrationStyle>) Specifies that a type from a scanned assembly is registered as providing all of its implemented interfaces.

What is Autofac extensions DependencyInjection?

DependencyInjection. The Autofac. Extensions. DependencyInjection package implements the abstractions for this to provide DI via Autofac. The integration with ASP.NET Core is very similar to this since the whole framework has unified the abstraction around dependency injection.

How do I use Autofac in Web API?

Prerequisites

1. Create a database.
2. Create Web API Application.
3. Configure Entity Framework ORM.
4. Install Autofac.
5. Implement http Service.
6. Configure Autofac.

Why do we need Autofac?

AutoFac provides better integration for the ASP.NET MVC framework and is developed using Google code. AutoFac manages the dependencies of classes so that the application may be easy to change when it is scaled up in size and complexity.

Why should I use Autofac?

How do I use Autofac in .NET framework?

Getting Started

1. Structure your app with inversion of control (IoC) in mind.
2. Add Autofac references.
3. At application startup… Create a ContainerBuilder . Register components.
4. During application execution… Create a lifetime scope from the container. Use the lifetime scope to resolve instances of the components.

Should DbContext be Singleton?

First, DbContext is a lightweight object; it is designed to be used once per business transaction. Making your DbContext a Singleton and reusing it throughout the application can cause other problems, like concurrency and memory leak issues. And the DbContext class is not thread safe.

Why is DbContext not thread-safe?

This is usually caused by different threads using the same instance of DbContext, however instance members are not guaranteed to be thread safe. When concurrent access goes undetected, it can result in undefined behavior, application crashes and data corruption.

What is the difference between transient and scoped and singleton?

Singleton is a single instance for the lifetime of the application domain. Scoped is a single instance for the duration of the scoped request, which means per HTTP request in ASP.NET. Transient is a single instance per code request.

What is Scrutor?

Scrutor is an open source library that adds assembly scanning capabilities to the ASP.Net Core DI container.

Should I use Autofac with ASP.NET Core?

Autofac is the most widely used DI/IoC container for ASP.NET, and it is fully compatible with.NET Core as well. . NET Core has a built-in dependency injection framework that is ready to use. Even though the default DI may provide sufficient functionality, there are several limitations when using it.

What is Autofac library?

¶ Autofac is an addictive IoC container for . NET. It manages the dependencies between classes so that applications stay easy to change as they grow in size and complexity. This is achieved by treating regular .

What are the differences between Web API and Web API 2?

Actually WebAPI 2.0 is enhanced feature of WebApi there is no difference between this two. In version 2.0, the Web API framework has been enhanced to support the following features: IHttpActionResult return type. A new Routing Attribute.

What is the use of AutoFac in MVC?

Should I use Autofac in ASP.NET Core?

Autofac is a . Net-based IoC container. When classes interact with one another, it manages the dependencies between them that allow applications to remain flexible as they grow in size and complexity. Autofac is the most widely used DI/IoC container for ASP.NET, and it is fully compatible with.NET Core as well.

How do I use Autofac in NET Core API?

Create an ASP.NET Core Web API and use Autofac for dependency injection

1. First, Open File-> New-> project in Visual Studio 2019:
2. Choose .Net core 3.1 and click on create.
3. Open startup.
4. You can learn more about startup.
5. Configure Autofac:
6. public IServiceProvider ConfigureServices(IServiceCollection services)

How do I set Autofac in default module?

Configure Autofac in ASP.NET Core application

1. NuGet: To use Autofac, you need to install below NuGet packages. PM> Install-Package Autofac.
2. Configuration: Configure Host builder, typically this is your Program.
3. Add a ConfigureContainer method to Startup class.
4. Usage: You are done with Autofac configuration.

Should DbContext be in a using?

EF and EF Core DbContext types implement IDisposable . As such, best practice programming suggests that you should wrap them in a using() block (or new C# 8 using statement). Unfortunately, doing this, at least in web apps, is generally a bad idea.

Is DbContext a singleton?