AutoMapper is a simple little library built to solve a deceptively complex problem - getting rid of code that mapped one object to another. This type of code is rather dreary and boring to write, so why not invent a tool to do it for us?
This is the main repository for AutoMapper, but there's more:
First, configure AutoMapper to know what types you want to map, in the startup of your application:
var configuration = new MapperConfiguration(cfg => { cfg.CreateMap<Foo, FooDto>(); cfg.CreateMap<Bar, BarDto>(); }, loggerFactory); // or more typically, using IServiceCollection services.AddAutoMapper(cfg => { cfg.CreateMap<Foo, FooDto>(); cfg.CreateMap<Bar, BarDto>(); }); // only during development, validate your mappings; remove it before release #if DEBUG configuration.AssertConfigurationIsValid(); #endif // use DI (http://docs.automapper.io/en/latest/Dependency-injection.html) or create the mapper yourself var mapper = configuration.CreateMapper();
Then in your application code, execute the mappings:
var fooDto = mapper.Map<FooDto>(foo); var barDto = mapper.Map<BarDto>(bar);
Check out the getting started guide. When you're done there, the wiki goes in to the nitty-gritty details. If you have questions, you can post them to Stack Overflow.
First, install NuGet. Then, install AutoMapper from the package manager console:
PM> Install-Package AutoMapper
Or from the .NET CLI as:
dotnet add package AutoMapper
You might want to know exactly what your mapping does at runtime.
If you're still running into problems, file an issue above.
If you are a paying customer, you can contact support via your account.
How do I set the license key?You can set the license key when registering AutoMapper:
services.AddAutoMapper(cfg => { cfg.LicenseKey = "<license key here>"; })
You can register for your license key at AutoMapper.io
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