Recursively through heavy nested JSON

Question

So I am a bit stucked right now.

I want to go through a nested JObject with recursion

The json looks sth like that

"Name":"Bob",
"Place":{
    "Name":"New York",
    "Address":{
        "Name":"Elmstreet",
        "Number":13
    },
    "Country":"Calif"
}`

I want to store it in my Poco which looks sth like that

public class Variance
{
    public string PropertyName { get; set; }
    public IList<Variance> Children { get; set; }
}

Therefore I need a List to store all variances,

List<Variance> listOfAll = new List<Variance>();

What I've tried but it doesnt really work for me

Variance Recursively(List<JToken> jToken)
    {
        
        foreach (var token in jToken)
        {

            Variance variance = new Variance();
            variance.PropertyName = token.Path;
            if (token.Children().ToList().Count > 1)
                variance.Children.Add(Recursively(token.Children().ToList()));
            listOfAll.Add(variance);
            return variance;

        }
        return null;
    }

What I really want is that the list contain all variances and these variances should contain the children as a List

Currently the listofAll only contains 1 Variance (name) instead of two (name and place) place then should contain name address and Country. Then address should contain Name and number.

Answer 1

You could use just Propeties, like the following code :

1 - Change Children type to List for using .AddRange() in Recursively method :

public class Variance
{
    public string PropertyName { get; set; }
    public List<Variance> Children { get; set; }
}

2 - Recursively method takes collection of properties and checks if the nested json is an object or not :

static List<Variance> Recursively(IEnumerable<JProperty> jProperties)
{
    List<Variance> listOfAll = new List<Variance>();

    foreach (JProperty jProperty in jProperties)
    {
        Variance variance = new Variance
        {
            PropertyName = jProperty.Path
        };

        if (jProperty.Value.Type == JTokenType.Object)
        {
            variance.Children = new List<Variance>();
            List<Variance> recuList = Recursively(((JObject)jProperty.Value).Properties());
            variance.Children.AddRange(recuList);
        }

        listOfAll.Add(variance);
    }

    return listOfAll;
}

3 - Call Recursively like :

JObject jObject = JObject.Parse(json);
List<Variance> result = Recursively(jObject.Properties());

Note that, if you have nested json like an array, you might want to tweak the method.

I hope you find this helpful.