DashboardUtils.cs

using DevExpress.DashboardAspNetCore;
using DevExpress.DashboardCommon;
using DevExpress.DashboardWeb;
using DevExpress.DataAccess.Json;
using Microsoft.Extensions.FileProviders;

namespace AspNetCoreDashboardBackend.Code {
    public static class DashboardUtils {
        public static DashboardConfigurator CreateDashboardConfigurator(IConfiguration configuration, IFileProvider fileProvider) {
            DashboardConfigurator configurator = new DashboardConfigurator();
            configurator.SetDashboardStorage(new DashboardFileStorage(fileProvider.GetFileInfo("App_Data/Dashboards").PhysicalPath));
            configurator.SetDataSourceStorage(CreateDataSourceStorage());
            configurator.SetConnectionStringsProvider(new DashboardConnectionStringsProvider(configuration));
            configurator.ConfigureDataConnection += Configurator_ConfigureDataConnection;
            return configurator;

        }
        static DataSourceInMemoryStorage CreateDataSourceStorage() {
            DataSourceInMemoryStorage dataSourceStorage = new DataSourceInMemoryStorage();
            DashboardJsonDataSource jsonDataSource = new DashboardJsonDataSource("Customers");
            jsonDataSource.ConnectionName = "jsonDataSourceConnection";
            jsonDataSource.RootElement = "Customers";
            dataSourceStorage.RegisterDataSource("jsonDataSourceSupport", jsonDataSource.SaveToXml());
            return dataSourceStorage;
        }
        static void Configurator_ConfigureDataConnection(object sender, ConfigureDataConnectionWebEventArgs e) {
            if (e.ConnectionName == "jsonDataSourceConnection") {
                Uri fileUri = new Uri("https://raw.githubusercontent.com/DevExpress-Examples/DataSources/master/JSON/customers.json");
                JsonSourceConnectionParameters jsonParams = new JsonSourceConnectionParameters();
                jsonParams.JsonSource = new UriJsonSource(fileUri);
                e.ConnectionParameters = jsonParams;
            }
        }
    }
}