# Using Suggest Api in Dev Tools Console gives invalid\_type\_name\_exception

**URL:** <https://discuss.elastic.co/t/using-suggest-api-in-dev-tools-console-gives-invalid-type-name-exception/115685>\
**Category:** Kibana\
**Created:** [January 16, 2018, 10:36am UTC](https://discuss.elastic.co/t/using-suggest-api-in-dev-tools-console-gives-invalid-type-name-exception/115685 "2018-01-16T10:36:37Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![SKing](https://avatars.discourse-cdn.com/v4/letter/s/8c91f0/32.png) [@SKing](https://discuss.elastic.co/u/SKing)\
**Post date:** [January 16, 2018, 10:36am UTC](https://discuss.elastic.co/t/using-suggest-api-in-dev-tools-console-gives-invalid-type-name-exception/115685/1 "2018-01-16T10:36:37Z")

</div>

I am using the Kibana Dev Tools Console.  
Elastic 6.1.1  
Kibana 6.1.1  
Running on windows

I am following the same steps outlined in the blog [https://www.elastic.co/blog/you-complete-me](https://www.elastic.co/blog/you-complete-me)

However, when I try

```auto
curl -X POST localhost:9200/hotels/_suggest -d '
{
  "hotels" : {
    "text" : "m",
    "completion" : {
      "field" : "name_suggest"
    }
  }
}'

```

which equates to

```auto
POST /hotels/_suggest
{
  "hotels" : {
    "text" : "m",
    "completion" : {
      "field" : "name_suggest"
    }
  }
}

```

I get the following error

```auto
{
  "error": {
    "root_cause": [
      {
        "type": "invalid_type_name_exception",
        "reason": "Document mapping type name can't start with '_', found: [_suggest]"
      }
    ],
    "type": "invalid_type_name_exception",
    "reason": "Document mapping type name can't start with '_', found: [_suggest]"
  },
  "status": 400
}

```

I have searched through the forum but I can't find the solution

---

<div class="post-metadata">

**Author:** ![SKing](https://avatars.discourse-cdn.com/v4/letter/s/8c91f0/32.png) [@SKing](https://discuss.elastic.co/u/SKing)\
**Post date:** [January 16, 2018, 11:03am UTC](https://discuss.elastic.co/t/using-suggest-api-in-dev-tools-console-gives-invalid-type-name-exception/115685/2 "2018-01-16T11:03:05Z")

</div>

I can see that I used an older blog

On looking at elastic documentation

\_suggest endpoint has been deprecated in favour of using suggest via \_search endpoint. In 5.0, the \_search endpoint has been optimized for suggest only search requests.

---

<div class="post-metadata">

**Author:** ![spalger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spalger/32/14092_2.png) [@spalger](https://discuss.elastic.co/u/spalger)\
**Post date:** [January 16, 2018, 7:22pm UTC](https://discuss.elastic.co/t/using-suggest-api-in-dev-tools-console-gives-invalid-type-name-exception/115685/3 "2018-01-16T19:22:01Z")

</div>

Yep, the blog post is just out of date. Try reading [https://www.elastic.co/guide/en/elasticsearch/reference/6.1/search-suggesters.html](https://www.elastic.co/guide/en/elasticsearch/reference/6.1/search-suggesters.html) to learn about the suggest functionality in search

---

<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 13, 2018, 7:22pm UTC](https://discuss.elastic.co/t/using-suggest-api-in-dev-tools-console-gives-invalid-type-name-exception/115685/4 "2018-02-13T19:22:07Z")

</div>

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