# Insert object to nested array
**URL:** https://discuss.elastic.co/t/insert-object-to-nested-array/149491
**Category:** Elasticsearch
**Created:** [September 21, 2018, 4:47pm UTC](https://discuss.elastic.co/t/insert-object-to-nested-array/149491 "2018-09-21T16:47:34Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Martin\_Blaustein](https://discuss.elastic.co/u/Martin_Blaustein)
#### Post date: [September 21, 2018, 4:47pm UTC](https://discuss.elastic.co/t/insert-object-to-nested-array/149491/1 "2018-09-21T16:47:34Z")
I'm trying to insert an object to a nested array through the java api, but I get the following error
_MapperParsingException[object mapping for [X] tried to parse field [null] as object, but found a concrete value]_
doing it **through Kibana as shown below the same script works**.
Any ideas on how to fix this?
The java code is the following
```auto
HashMap params = new HashMap<>();
params.put("object", objectAsString);
Script script = new Script(ScriptType.INLINE, "painless", "ctx._source.media.add(params.object)", params);
UpdateResponse result = elasticClient.prepareUpdate(indexName, "Type", documentId).setScript(script).execute().actionGet();
```
Trhough Kibana
POST index/document/id/\_update
```auto
{
"script": {
"lang": "painless",
"inline": "ctx._source.media.add(params.object)",
"params": {
"object": {
"description" : "A second image",
"height" : 5,
"weight": 5,
"name" : "Test",
"orientation" : "Vertical",
"url" : "htttp://newurl.jpg",
"tags":["first","second"],
"type":"image"
}
}
}
}
```
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 19, 2018, 4:47pm UTC](https://discuss.elastic.co/t/insert-object-to-nested-array/149491/2 "2018-10-19T16:47:37Z")
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