# How to to change string to object when re-indexing?

**URL:** https://discuss.elastic.co/t/how-to-to-change-string-to-object-when-re-indexing/222355
**Category:** Elasticsearch
**Created:** [March 5, 2020, 6:47pm UTC](https://discuss.elastic.co/t/how-to-to-change-string-to-object-when-re-indexing/222355 "2020-03-05T18:47:07Z")
**Posts on this page:** 3
**Page:** 1

<div class="post-metadata">

### Author: ![javadevmtl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/javadevmtl/32/45613_2.png) [@javadevmtl](https://discuss.elastic.co/u/javadevmtl)
#### Post date: [March 5, 2020, 6:47pm UTC](https://discuss.elastic.co/t/how-to-to-change-string-to-object-when-re-indexing/222355/1 "2020-03-05T18:47:07Z")

</div>

Hi, using Elastic 6.4.2

I have a document like so...

```
{
    "host": "foo.bar.com"
}

```

I would like to re-index it to...

```
{
    "host": {
        "name": "foo.bar.com"
    }
}

```

I'm guessing I need to use re-index api with ingest pipeline and which processor?

Thanks

---

<div class="post-metadata">

### Author: ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [March 6, 2020, 2:54am UTC](https://discuss.elastic.co/t/how-to-to-change-string-to-object-when-re-indexing/222355/2 "2020-03-06T02:54:05Z")

</div>

[https://www.elastic.co/guide/en/elasticsearch/reference/current/rename-processor.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/rename-processor.html)

---

<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [April 3, 2020, 2:58am UTC](https://discuss.elastic.co/t/how-to-to-change-string-to-object-when-re-indexing/222355/3 "2020-04-03T02:58:15Z")

</div>

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