Find your content:

Search form

You are here

JSON.deserialize Array of Objects


I'm trying use the Box 2.0 API which returns everything in JSON. This is great because I can use JSON.deserialize. I've run into one issue when getting the folder and file structure. Box returns it as an array of objects that can contain both files and folders. I'd like to have different Apex classes that represent files and folders, but can't figure out if it is possible to deserialize the JSON into these two different classes. The other option I have is to create a single class that is a superset of all fields. Here's a snippet of the JSON.

{"item_collection": {
    "total_count": 2,
    "entries": [
            "type": "folder",
            "id": "344470651",
            "sequence_id": "0",
            "etag": "0",
            "name": "Signed and returned by you"
            "type": "file",
            "id": "2778062467",
            "sequence_id": "0",
            "etag": "0",
            "sha1": "92da54134a52f3e264ab9ed346b3be95c9b2cdad",
            "name": "Welcome.pdf"

Am I stuck doing the superset class or is there a way to get them split into separate classes?

Attribution to: Daniel Hoechst

Possible Suggestion/Solution #1

Using the app developed by metadady and superfell was able to parse your JSON into apex class

// Generated by JSON2Apex

public class JSON2Apex {

    public Item_collection item_collection;

    public class Item_collection {
        public Integer total_count;
        public List<Entries> entries;

    public class Entries {
        public String type;
        public String id;
        public String sequence_id;
        public String etag;
        public String name;
        public String sha1;

    public static JSON2Apex parse(String json) {
        return (JSON2Apex) System.JSON.deserialize(json, JSON2Apex.class);

    static testMethod void testParse() {
        String json = '{\"item_collection\": {'+
        '    \"total_count\": 2,'+
        '    \"entries\": ['+
        '        {'+
        '            \"type\": \"folder\",'+
        '            \"id\": \"344470651\",'+
        '            \"sequence_id\": \"0\",'+
        '            \"etag\": \"0\",'+
        '            \"name\": \"Signed and returned by you\"'+
        '        },'+
        '        {'+
        '            \"type\": \"file\",'+
        '            \"id\": \"2778062467\",'+
        '            \"sequence_id\": \"0\",'+
        '            \"etag\": \"0\",'+
        '            \"sha1\": \"92da54134a52f3e264ab9ed346b3be95c9b2cdad\",'+
        '            \"name\": \"Welcome.pdf\"'+
        '        }'+
        '    ]'+
        JSON2Apex obj = parse(json);
        System.assert(obj != null);

Please try and it does magic .Thanks to metadady and Superfell and whoever built this app on herouku platform

Once we have the List of Entries(List entries)you can separated by using the Type in an another list .

Attribution to: Mohith Shrivastava

Possible Suggestion/Solution #2

@Mohith Shrivastava, do you have the code of loop through item_colletion and entries to get the data after JSON2Apex obj = parse(json)?

Thanks in advance,

Attribution to: Baseball Player
This content is remixed from stackoverflow or stackexchange. Please visit

My Block Status

My Block Content