version	package
	Qowaiv.Json.Newtonsoft
	Qowaiv.Text.Json.Serialization
	Qowaiv.Bson.MongoDB

Qowaiv JSON

Serializing data using JSON is common practice. However, .NET has no generic interface in the standard library to implement.

The solution provided here, is a (naming) convention based one, to serialize Single Value Objects: Value Objects that can be represented by a single scalar.

1. There should be a public static factory method FromJson(string) returning a new instance of the Single Value Object (SVO).
2. Optional factory methods for double, long, and bool can be provided. If not, the string factory method is used.
3. If a none void method ToJson() is provided, this one is used for serialization, otherwise object.ToString().

Sample Single Value Object

public struct /* or class */ SingleValueObject
{
    // Required.
    public static SingleValueObject FromJson(string json);

    // Optional, otherwise FromJson(json.ToString(CultureInfo.Invariant)) is called.
    public static SingleValueObject FromJson(double json);

    // Optional, otherwise FromJson(json.ToString(CultureInfo.Invariant)) is called.
    public static SingleValueObject FromJson(long json);

    // Optional, otherwise FromJson(json ? "true": "false") is called.
    public static SingleValueObject FromJson(bool json);

    // Optional, otherwise ToString()
    public object /* or string, bool, int, long, double, decimal */ToJson();
}

System.Text.Json

Since .NET Core 3.0, Microsoft provides a built-in JSON serialization. To use the Qowaiv.Text.Json.Serialization package the following code can be used:

using Qowaiv.Text.Json.Serialization;

public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services
            .AddMvc() 
            .AddJsonOptions(options => 
            {
                options.JsonSerializerOptions.Converters.Add(new QowaivJsonConverter());
            });
    }
}

Newtonsoft

Newtonsoft's converter was the .NET de facto default, until .NET Core 3.0. To use the Qowaiv.Json.Newtonsoft package the following code can be used:

QowaivJsonConverter.Register();

Or, if you work with .NET core Web API:

NuGet:

Install-Package Microsoft.AspNetCore.Mvc.NewtonsoftJson

Startup.cs:

using Qowaiv.Json.Newtonsoft;

public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services
            .AddMvc()
            .AddNewtonsoftJson(options => 
            {
                options.SerializerSettings.Converters.Add(new QowaivJsonConverter());
            });
    }
}

MongoDB.Bson

MongoDB is a cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses BSON documents with a schema. The .NET library provides a mechanism to convert objects from and to BSON (..)