c# - How to add AutoMapper to DI in .Net core 2.0 Console Application

Question

I try to use AutoMapper in my .Net Core 2.0 Console Application. My class looks like this:

public class AutoGetCurrency
{
    private readonly IMapper mapper;
    public AutoGetCurrency(IMapper mapper) {
    this.mapper = mapper;
    }
    ....
}

I tried to add services into Main method:

static void Main(string[] args)
{
    var services = new ServiceCollection();
    ServiceProvider = services.BuildServiceProvider();
    services.AddTransient<IMapper>();
    ....
}

But I have the next error 'One or more errors occurred. (Object reference not set to an instance of an object.)'

Please tell me how to add AutoMapper to use DI.

Answer 1

You need to add this nuget package AutoMapper.Extensions.Microsoft.DependencyInjection to your project and add AutoMapper to your ServiceCollection like this

var services = new ServiceCollection();
services.AddAutoMapper(mapperConfig => mapperConfig.AddProfiles(GetType().Assembly))
ServiceProvider = services.BuildServiceProvider();