Possible to search case-insensitive with JSONPath?

Question

Using the SelectToken method of JSON.NET to select a token with JSONPath, I found no way to specifiy that the search should be case-insensitive.

E.g.

jso         


        

Answer 1

It's really surprising that Newtonsoft gets away without supporting this. I had to write a custom JToken extension to support this. I did not need the entire JSONPath, needed just a few basic path queries. Below is the code I used

public static JToken GetPropertyFromPath(this JToken token, string path)
{
    if (token == null)
    {
        return null;
    }
    string[] pathParts = path.Split(".");
    JToken current = token;
    foreach (string part in pathParts)
    {
        current = current.GetProperty(part);
        if (current == null)
        {
            return null;
        }
    }
    return current;
}

public static JToken GetProperty(this JToken token, string name)
{
    if (token == null)
    {
        return null;
    }
    var obj = token as JObject;
    JToken match;
    if (obj.TryGetValue(name, StringComparison.OrdinalIgnoreCase, out match))
    {
        return match;
    }
    return null;
}

With the above code I can parse JSON as follows

var obj = JObject.Parse(someJson);
JToken tok1 = obj.GetPropertyFromPath("l1.l2.l3.name"); // No $, or other json path cliché
JToken tok2 = obj.GetProperty("name");
string name = obj.StringValue("name"); // Code in the link below

Code to entire extension available here