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c#jsoncompare
Nir Amir
Nir Amir

Reputation: 130

How compare two json objects by only key?

I have two json objects and I compare them, But it is compared by key and value, And I want to compare two json objects by only key, How do I it?

This my code:

var jdp = new JsonDiffPatch();
var areEqual2 = jdp.Diff(json1, json2);

Upvotes: 0

Views: 2732

Answers (3)

Yehudit
Yehudit

Reputation: 11

If you want to get a different between 2 json:

       private List<string> GetDiff(List<string> path1, List<string> path2)
    {
        List<string> equal=new List<string>();

        foreach (var j1 in path1)
        {
            foreach (var j2 in path2)
            {
                if (j1 == j2)
                {
                    equal.Add(j1);
                }
            }   
        }        
        return equal;
    }

Upvotes: 1

littlemisscomputerscientist
littlemisscomputerscientist

Reputation: 145

you can create and use a class like this:

class CustomComparer : IEqualityComparer<YourObjectType> 
{  

    public bool Equals(YourObjectType first, YourObjectType second) 
    {  
        if (first == null | second == null) { return false; } 

        else if (first.Hash == second.Hash) 
            return true; 

        else return false;
    }

    public int GetHashCode(YourObjectType obj)
    {
        throw new NotImplementedException();
    }        
}

Upvotes: 1

Anu Viswan
Anu Viswan

Reputation: 18173

One way you could achive this is by retrieving the names/path of all keys in json and comparing the List. For example,

var path1 = GetAllPaths(json1).OrderBy(x=>x).ToList();
var path2 = GetAllPaths(json2).OrderBy(x=>x).ToList();
var result = path1.SequenceEqual(path2);

Where GetAllPaths is defined as

private IEnumerable<string> GetAllPaths(string json)
{
    var regex = new Regex(@"\[\d*\].",RegexOptions.Compiled);
    return JObject.Parse(json).DescendantsAndSelf()
                   .OfType<JProperty>()
                   .Where(jp => jp.Value is JValue)
                   .Select(jp => regex.Replace(jp.Path,".")).Distinct();
}

Sample Demo

Upvotes: 0

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