一、安装包

<PackageReference Include="MediatR" Version="12.1.1" />

二、编写示例

using MediatR;

namespace WebApplication7
{
    public class TestCommand : IRequest<bool>
    {
    }

    public class TestCommandHandler : IRequestHandler<TestCommand, bool>
    {
        public async Task<bool> Handle(TestCommand request, CancellationToken cancellationToken)
        {
            return true;
        }
    }
}