# Unable to upload json fields which contains korean in its field name

**URL:** <https://discuss.elastic.co/t/unable-to-upload-json-fields-which-contains-korean-in-its-field-name/261760>\
**Category:** Elastic Search\
**Tags:** elastic-app-search\
**Created:** [January 21, 2021, 10:08am UTC](https://discuss.elastic.co/t/unable-to-upload-json-fields-which-contains-korean-in-its-field-name/261760 "2021-01-21T10:08:53Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Subhas\_Patil](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/subhas_patil/32/76864_2.png) [@Subhas\_Patil](https://discuss.elastic.co/u/Subhas_Patil)\
**Post date:** [January 21, 2021, 10:08am UTC](https://discuss.elastic.co/t/unable-to-upload-json-fields-which-contains-korean-in-its-field-name/261760/1 "2021-01-21T10:08:53Z")

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Iam trying to upload the json data into app search but its giving me errors because the field names contain a few korean language fields.  
Any help to resolve this would be appreciated.

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<div class="post-metadata">

**Author:** ![constancecchen](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/constancecchen/32/71762_2.png) [@constancecchen](https://discuss.elastic.co/u/constancecchen)\
**Post date:** [January 21, 2021, 4:15pm UTC](https://discuss.elastic.co/t/unable-to-upload-json-fields-which-contains-korean-in-its-field-name/261760/2 "2021-01-21T16:15:08Z")

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Hi Subhas,

This is unfortunately a known requirement/limitation of App Search. JSON field names/keys must:

- Contain lowercase letters, numbers, and underscores (no spaces or special characters)
- Contain a lowercase letter
- Not start with an underscore
- Not be more than 64 characters long
- Not be a reserved keyword

However, field values/content can certainly be other languages. I recommend translating your keys to alphanumeric English characters and performing a find and replace on your JSON data (or modifying your API source).

Hope that helped!  
Constance

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<div class="post-metadata">

**Author:** ![Subhas\_Patil](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/subhas_patil/32/76864_2.png) [@Subhas\_Patil](https://discuss.elastic.co/u/Subhas_Patil)\
**Post date:** [January 25, 2021, 5:43am UTC](https://discuss.elastic.co/t/unable-to-upload-json-fields-which-contains-korean-in-its-field-name/261760/3 "2021-01-25T05:43:50Z")

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iam still not able to do it.

Lets say i have a JSON data like this:  
[  
{"데이터":"my data"}  
]

How do i upload this?

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<div class="post-metadata">

**Author:** ![constancecchen](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/constancecchen/32/71762_2.png) [@constancecchen](https://discuss.elastic.co/u/constancecchen)\
**Post date:** [January 25, 2021, 7:15am UTC](https://discuss.elastic.co/t/unable-to-upload-json-fields-which-contains-korean-in-its-field-name/261760/4 "2021-01-25T07:15:36Z")

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Apologies if I wasn't clear in my response: you can't.

You can do this:

```auto
[
  { "data": "데이터" }
]

```

You cannot have special characters in JSON field names/keys.

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<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:** [February 22, 2021, 7:15am UTC](https://discuss.elastic.co/t/unable-to-upload-json-fields-which-contains-korean-in-its-field-name/261760/5 "2021-02-22T07:15:38Z")

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