ASP. NET CORE Study03

HTTP Status code

4xx Details of status code

2xx Status code

5xx Indicates an internal server error , Can only wait for the internal solution of the server .
about web api It is not necessary to use 1xx The status code , Most of web api Nor can it be used 3xx The status code .

HTTP Method

http There are many methods available , But the most commonly used are the following .

http Method Use , Suggest Use By convention http Method To complete the action .

automapper Use

1. install automapper nuget package

2. stay startup Configuration class Of ConfigureServices Method registration automapper service .

services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies());

3. newly build profiles Folder , New needs Mapping the class Of profile Class configures mapping relationships in classes .

    public class CompanyProfile : Profile
    {
    
        public CompanyProfile()
        {
    
            CreateMap<Company, CompanyDTO>().ForMember(destinationMember: dest => dest.CompanyName, 
                memberOptions: opt => opt.MapFrom(mapExpression: src => src.Name));
        }
    }

Need to introduce AutoMapper as well as The location of the mapped model class namespace.

4. Use automapper Do object mapping

var companyDtos = _mapper.Map<IEnumerable<CompanyDTO>>(companies);

need An instantiated automapper object , It's used here Constructor injection . Because before configureservice Method . After obtaining the instantiated object Just call the method .