In this post, we are going to write about what we consider to be the best practices while developing the .NET Core Web API project. How we can make it better and how to make it more maintainable.

We are going to go through the following sections:

• Startup Class and the Service Configuration
• Project Organization
• Environment Based Settings
• Data Access Layer
• Controllers
• Actions
• Microsoft.AspNetCore.All Meta-Package
• Routing
• Logging
• CryptoHelper
• Content Negotiation
• Using JWT
• Conclusion  

using System;
using PdfRpt;
using PdfRpt.Core.Contracts;
using PdfRpt.Core.Helper;
using PdfRpt.FluentInterface;

namespace PdfReportSamples.AdHocColumns
{
    public class AdHocColumnsPdfReport
    {
        public IPdfReportData CreatePdfReport()
        {
            return new PdfReport().DocumentPreferences(doc =>
            {
                doc.RunDirection(PdfRunDirection.RightToLeft);
                doc.Orientation(PageOrientation.Portrait);
                doc.PageSize(PdfPageSize.A4);
                doc.DocumentMetadata(new DocumentMetadata { Author = "Vahid", Application = "PdfRpt", Keywords = "Test", Subject = "Test Rpt", Title = "Test" });
            })
             .DefaultFonts(fonts =>
             {
                 fonts.Path(AppPath.ApplicationPath + "\\fonts\\irsans.ttf",
                            Environment.GetEnvironmentVariable("SystemRoot") + "\\fonts\\verdana.ttf");
             })
             .PagesFooter(footer =>
             {
                 footer.DefaultFooter(printDate: DateTime.Now.ToString("MM/dd/yyyy"));
             })
             .PagesHeader(header =>
             {
                 header.DefaultHeader(defaultHeader =>
                 {
                     defaultHeader.ImagePath(AppPath.ApplicationPath + "\\Images\\01.png");
                     defaultHeader.Message("گزارش جدید ما");
                 });
             })
             .MainTableTemplate(template =>
             {
                 template.BasicTemplate(BasicTemplate.SilverTemplate);
             })
             .MainTablePreferences(table =>
             {
                 table.ColumnsWidthsType(TableColumnWidthType.Relative);
             })
             .MainTableDataSource(dataSource =>
             {
                 dataSource.GenericDataReader(
                    providerName: "System.Data.SQLite",
                    connectionString: "Data Source=" + AppPath.ApplicationPath + "\\data\\blogs.sqlite",
                    sql: @"SELECT [url] as 'آدرس', [name] as 'نام', [NumberOfPosts] as 'تعداد مطالب', [AddDate] as 'تاریخ ارسال'
                           FROM [tblBlogs]
                           WHERE [NumberOfPosts]>=@p1",
                    parametersValues: new object[] { 10 }
                );
             })
             .MainTableSummarySettings(summary =>
             {
                 summary.OverallSummarySettings("جمع کل");
                 summary.PreviousPageSummarySettings("نقل از صفحه قبل");
                 summary.PageSummarySettings("جمع صفحه");
             })
             .MainTableAdHocColumnsConventions(adHocColumns =>
             {
                 //We want sum of the int columns
                 adHocColumns.AddTypeAggregateFunction(
                     typeof(Int64),
                     new AggregateProvider(AggregateFunction.Sum)
                     {
                         DisplayFormatFormula = obj => obj == null ? string.Empty : string.Format("{0:n0}", obj)
                     });

                 //We want to dispaly all of the dateTimes as ShamsiDateTime
                 adHocColumns.AddTypeDisplayFormatFormula(
                     typeof(DateTime),
                     data => { return PersianDate.ToPersianDateTime((DateTime)data); }
                 );
                 adHocColumns.ShowRowNumberColumn(true);
                 adHocColumns.RowNumberColumnCaption("ردیف");
             })
             .MainTableEvents(events =>
             {
                 events.DataSourceIsEmpty(message: "There is no data available to display.");
             })
             .Export(export =>
             {
                 export.ToExcel();
                 export.ToXml();
             })
             .Generate(data => data.AsPdfFile(AppPath.ApplicationPath + "\\Pdf\\AdHocColumnsSampleRpt.pdf"));
        }
    }
}

SELECT [url] as 'آدرس', [name] as 'نام', [NumberOfPosts] as 'تعداد مطالب', [AddDate] as 'تاریخ ارسال'
FROM [tblBlogs]
WHERE [NumberOfPosts]>=@p1

adHocColumns.ShowRowNumberColumn(true);
adHocColumns.RowNumberColumnCaption("ردیف");

adHocColumns.AddTypeDisplayFormatFormula(
                     typeof(DateTime),
                     data => { return PersianDate.ToPersianDateTime((DateTime)data); }
                 );

adHocColumns.AddTypeAggregateFunction(
                     typeof(Int64),
                     new AggregateProvider(AggregateFunction.Sum)
                     {
                         DisplayFormatFormula = obj => obj == null ? string.Empty : string.Format("{0:n0}", obj)
                     });

- Killing the utility class with premeditation
- Killing the utility class with relocation
- Killing the utility class with consolidation
- Killing the utility class with semantic types
- Killing the utility class with extension methods

...

Tuple does many things KeyValuePair does not. Tuples are comparable, they implement the IComparable and IStructuralEquatable interfaces, so it makes compare two tuple

...

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