AutoMapper is a simple library that helps us to transform one object type to another. It is a convention-based object-to-object mapper that requires very little configuration. The object-to-object mapping works by transforming an input object of one type into an output object of a different type.

In respect to this, how do I use AutoMapper in .NET core?

How to using AutoMapper on ASP.NET Core 3.0 via Dependency Injection

  1. Install AutoMapper extension from Package Manager in your project.
  2. Register a service in CinfigureServices on Startup.cs.
  3. Create a model and a data transfer object.
  4. Create an AutoMapping class file to register a mapping relation.

Also Know, what is the use of AutoMapper in MVC? AutoMapper is an object-object mapper which allows you to solve the problem of manually mapping each property of a class with the same properties of another class. Before AutoMapper was introduced if we wanted to assign one object property to another object property then we were following a long procedure.

Also Know, what is an AutoMapper?

AutoMapper is a popular object-to-object mapping library that can be used to map objects belonging to dissimilar types. As an example, you might need to map the DTOs (Data Transfer Objects) in your application to the model objects.

Where is AutoMapper configuration?

ΒΆ Configuration should only happen once per AppDomain. That means the best place to put the configuration code is in application startup, such as the Global. asax file for ASP.NET applications.

What is AutoMapper C#?

The AutoMapper in C# is a mapper between two objects. That is AutoMapper is an object-object mapper. It maps the properties of two different objects by transforming the input object of one type to the output object of another type.

What are Dtos in C#?

DTO (Data Transfer objects) is a data container for moving data between layers. They are also termed as transfer objects. DTO is only used to pass data and does not contain any business logic. They only have simple setters and getters. For example, below is an Entity class or a business class.

What is Mapper class in C#?

"AutoMapper is an object-object mapper which allows you to solve the problem of manually mapping each property of a class with the same properties of another class.".

What is AutoMapper in Entity Framework?

AutoMapper is what is known as an object-to-object mapper, and can selectively map from one class to another, handling any relationships. AutoMapper can also produce LINQ code via its ProjectTo<T> method (see Queryable Extensions).

What is Mapper MVC?

AutoMapper is an external component that helps in creating a mapping between a source and destination model types. Once the mapping is created then the source model object can be converted to a destination model object with ease and with less cluttered code.

Does AutoMapper use reflection?

When you call CreateMap, AutoMapper uses optimizers to build the code for getting/setting values on source/destination types. Currently, it uses a combination of Reflection. Emit and expression tree compilation. At Map time, it uses the optimized callbacks for interacting with types.

What is mapping in asp net MVC?

In ASP.NET MVC applications, you have to map values between view model objects and domain model objects in many situations. In such scenarios, you can use AutoMapper for mapping values between objects to objects.In our code we copy values from our View model object ContactViewModel to domain model object Contact.

Should I use AutoMapper?

LINQ query extensions have the best performance of any mapping strategy, so it's better to use it as much as you can. If you have to do complex mapping behavior, it might be better to avoid using AutoMapper for that scenario. AutoMapper should not perform any business logic, only mapping configuration.