C SharpControls

C Sharp - Automapper

Automapper

Installation

With ASP.Net Core - use the nuget package manager to install Automapper.Extensions.Microsoft.DependencyInjection

Adding into your program

Startup.CS

Adding to program

Update startup.cs

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using AutoMapper;

// This method gets called by the runtime. Use this method to add services to the container.    
public void ConfigureServices(IServiceCollection services) 
{  
	    services.AddAutoMapper(typeof(Startup));  
	    services.AddControllers();  
}

Then add classes to hold mapping information

CompanyMapping.cs

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using AutoMapper;
using WF.Shared.Entities;
using WF.Shared.ViewModels;

namespace WF.Shared.Mappings
{
    public class CompanyMapping : Profile
    {
        public CompanyMapping()
        {
            CreateMap<CompanyViewModel, CompanyEntity>() 
                .ReverseMap();
        }
    }
}

In this case, I have a CompanyViewModel, and a CompanyEntity objects. CompanyViewModel is what is exposed to the API, CompanyEntity is used for database.

Then I have methods like this

CompanyService.cs

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:
        IResult<List<CompanyViewModel>> ICompanyService.GetAllCompanys()
        {
            try
            {
                var companyList = _companyRepository.GetAll();

                if (companyList.WasSuccessful)
                    return new Result<List<CompanyViewModel>>(_mapper.Map<List<CompanyViewModel>>(companyList.Model)).ReturnSuccess(companyList.Message.FriendlyMessage);
                else
                    return new Result<List<CompanyViewModel>>().ReturnFail(0, companyList.Message.FriendlyMessage);
            }
            catch (Exception e)
            {
                return new Result<List<CompanyViewModel>>().ReturnFail(0, LogError("Internal error processing the request. Please contact admin.", e));
            }
        }

Line 9, is where the mapper is called, this converts a list of CompanyEntity objects into a list of CompanyViewModel objects.

References: