# Update field meta of dynamic object in mappings using NEST

**URL:** <https://discuss.elastic.co/t/update-field-meta-of-dynamic-object-in-mappings-using-nest/364594>\
**Category:** Elasticsearch\
**Tags:** language-clients\
**Created:** [August 8, 2024, 10:26am UTC](https://discuss.elastic.co/t/update-field-meta-of-dynamic-object-in-mappings-using-nest/364594 "2024-08-08T10:26:35Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![rdmzcn](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rdmzcn/32/136637_2.png) [@rdmzcn](https://discuss.elastic.co/u/rdmzcn)\
**Post date:** [August 8, 2024, 10:26am UTC](https://discuss.elastic.co/t/update-field-meta-of-dynamic-object-in-mappings-using-nest/364594/1 "2024-08-08T10:26:35Z")

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Hello everyone,  
I have a nested field with `dynamic=true` as below. I keep the tr/en localizations of the fields in meta. How can I change the meta when adding a new field due to dynamic mapping in a new insert request?

```auto
{
    "properties": {
        "@timestamp": {
            "type": "date",
            "meta": {
                "en": "Time",
                "tr": "Zaman"
            }
        },
        "applicationName": {
            "type": "text",
            "fields": {
                "keyword": {
                    "type": "keyword",
                    "ignore_above": 256
                }
            },
            "meta": {
                "en": "Application Name",
                "tr": "Uygulama Adi"
            }
        },
        "data": {
            "dynamic": "true",
            "properties": {
                "deviceId": {
                    "type": "text",
                    "fields": {
                        "keyword": {
                            "type": "keyword",
                            "ignore_above": 256
                        }
                    }
                }
            }
        }
    }
}

```

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<div class="post-metadata">

**Author:** ![rdmzcn](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rdmzcn/32/136637_2.png) [@rdmzcn](https://discuss.elastic.co/u/rdmzcn)\
**Post date:** [August 8, 2024, 10:27am UTC](https://discuss.elastic.co/t/update-field-meta-of-dynamic-object-in-mappings-using-nest/364594/2 "2024-08-08T10:27:18Z")

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Removed #language-clients

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<div class="post-metadata">

**Author:** ![rdmzcn](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rdmzcn/32/136637_2.png) [@rdmzcn](https://discuss.elastic.co/u/rdmzcn)\
**Post date:** [August 8, 2024, 11:02am UTC](https://discuss.elastic.co/t/update-field-meta-of-dynamic-object-in-mappings-using-nest/364594/3 "2024-08-08T11:02:40Z")

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Added #language-clients