# The state of 'types' in elasticsearch 7
**URL:** https://discuss.elastic.co/t/the-state-of-types-in-elasticsearch-7/310146
**Category:** Elasticsearch
**Tags:** language-clients
**Created:** [July 20, 2022, 12:28pm UTC](https://discuss.elastic.co/t/the-state-of-types-in-elasticsearch-7/310146 "2022-07-20T12:28:19Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@sbruinsje](https://discuss.elastic.co/u/sbruinsje)
#### Post date: [July 20, 2022, 12:28pm UTC](https://discuss.elastic.co/t/the-state-of-types-in-elasticsearch-7/310146/1 "2022-07-20T12:28:20Z")
I am using Elasticsearch 7.17 and the corresponding javacript client `@elastic/elasticsearch@7.17`. My understanding is that only one type of document can be stored in an index and as such specifying explicit types is deprecated when indexing documents.
However when indexing a document using the javascript client I get this error:
```auto
ConfigurationError: Missing required parameter: type
```
The stack trace of the error points to this block of code:
```auto
await client.index({
index: indexName,
id: obj.id,
body: obj.body,
});
```
It turns out that if I add `type: '_doc'`, it works:
```auto
await client.index({
index: indexName,
type: '_doc',
id: obj.id,
body: obj.body,
});
```
Which is strange because the client docs say the type field is deprecated and they don't include the type in their examples either.
Is this a mistake in the javascript client or am I overlooking something?
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 17, 2022, 12:28pm UTC](https://discuss.elastic.co/t/the-state-of-types-in-elasticsearch-7/310146/2 "2022-08-17T12:28:49Z")
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