Add item to JSON array section in C#-CodePudding

{ "name": "Not Okay Bears Solana #1", "image": "ipfs://QmV7QPwmfc6iFXw2anb9oPZbkFR75zrtw6exd8LherHgvU/1.png", "attributes": [ { "trait_type": "Background", "value": "Amethyst" }, { "trait_type": "Fur", "value": "Warm Ivory" }, { "trait_type": "Mouth", "value": "Clean Smile" }, { "trait_type": "Eyes", "value": "Not Okay" }, { "trait_type": "Hat", "value": "Bucket Hat" }, { "trait_type": "Clothes", "value": "Plaid Jacket" }, { "trait_type": "Eyewear", "value": "Plastic Glasses" } ], "description": "Not Okay Bears Solana is an NFT project for mental health awareness. 10k collection on the Polygon blockchain. We are not okay." }

I need to add "attributes" section key:value item.

How to do this?

My JSON classes:

        public class Attribute
    {
        public string trait_type { get; set; }
        public string value { get; set; }
    }

    public class Root
    {
        public string name { get; set; }
        public string image { get; set; }
        public List<Attribute> attributes { get; set; }
        public string description { get; set; }
    }

CodePudding user response：

try this, in this case you don't need any classes

    var jsonObject = JObject.Parse(json);

    JObject obj = new JObject();
    obj.Add("trait_type", "type");
    obj.Add("value", "value");

    ((JArray)jsonObject["attributes"]).Add(obj);

    var newJson=jsonObject.ToString();

but if you need the data not a json , you can use this code

    Root data = JsonConvert.DeserializeObject<Root>(json);
    data.attributes.Add(new Attribute { trait_type="type", value="value"});