http based web api versioning

public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllers();

            services.AddApiVersioning(o => {
                o.ReportApiVersions = true;
                o.AssumeDefaultVersionWhenUnspecified = true;
                o.DefaultApiVersion = new ApiVersion(1, 0);
                o.ApiVersionReader = new HeaderApiVersionReader("x-api-version");
            });
        }