What is the best way to format this JSON in a way that is compatible with Realm database?

Currently, I am utilizing Retrofit and RxJava along with Gson for the purpose of parsing a JSON response. The JSON data structure that I have to work with is as follows:

{
"data": [
{
"name": "Featured Albums",
"slug": "featured-albums",
"items": [
 {
"type": "album",
"title": "Ajambari",
"slug": "ajambariUPC027829302603",
"count": 10,
"duration": "",
"is_explicit": false,
"is_premium": false,
"is_trending": false,
"is_popular": false,
"is_featured": false,
"released_date": "",
"logo": ""
}
],
"total_items": 4,
"per_page_items": 6,
"prev_page_url": null,
"next_page_url": null,
"total_page": 1
},
{
"name": "Featured Movies",
"slug": "featured-movies",
"items": [
{
"id": 41,
"title": "Karamat",
"slug": "NPA0D1802638",
"logo": "",
"background": 
"",
"playlist": false,
"count": 1,
"redirect_link": "",
"created_date": 2013
}
],
"total_items": 9,
"per_page_items": 6,
"prev_page_url": null,
"next_page_url": "",
"total_page": 2
}
]
}

One challenge I faced is that the "items" section can have varied structures. To tackle this issue, I decided to use JsonArray for parsing items in the following way:

public class HomeDatum extends RealmObject {

@SerializedName("name")
@Expose
private String name;
@SerializedName("slug")
@Expose
private String slug;
@SerializedName("items")
@Expose
private JsonArray items = null;
@SerializedName("total_items")
@Expose
private Integer totalItems;
@SerializedName("per_page_items")
@Expose
private Integer perPageItems;
@SerializedName("prev_page_url")
@Expose
private String prevPageUrl;
@SerializedName("next_page_url")
@Expose
private String nextPageUrl;
@SerializedName("total_page")
@Expose
private Integer totalPage;

// Getters and setters omitted for brevity

}

However, I encountered an error stating: Field "items" of type "com.google.gson.JsonArray" is not supported.. This error was thrown by Realm database. When I exclude Realm from the scenario, everything works smoothly.

My question is - how can I modify my approach to parse the aforementioned JSON data so that it can be supported by Realm database?

Thank you for your assistance!

Answer №1

To properly handle the response, make sure to use a ResponseClass as shown below:

public class ResponseClass {

@SerializedName("data")
@Expose
private ArrayList<HomeDatum> items;

public ResponseClass(){};


public ArrayList<HomeDatum> getItems() {
    return items;
}

public void setItems(ArrayList<HomeDatum> items) {
    this.items = items;
}

}

Then, you can utilize Retrofit to retrieve the response using the following code:

ResponseClass response = response.body();
ArrayList<HomeDatum> items = response.getItems();

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