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---
stage: Verify
group: Testing
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info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
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type: reference, api
---
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# Visual Review discussions API **(PREMIUM)**
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> - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/18710) in GitLab 12.5.
> - [Moved](https://about.gitlab.com/blog/2021/01/26/new-gitlab-product-subscription-model/) to GitLab Premium in 13.9.
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Visual Review discussions are notes on Merge Requests sent as
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feedback from [Visual Reviews ](../ci/review_apps/index.md#visual-reviews ).
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## Create new merge request thread
Creates a new thread to a single project merge request. This is similar to creating
a note but other comments (replies) can be added to it later.
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```plaintext
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POST /projects/:id/merge_requests/:merge_request_iid/visual_review_discussions
```
Parameters:
| Attribute | Type | Required | Description |
| ------------------------- | -------------- | -------- | ----------- |
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| `id` | integer/string | yes | The ID or [URL-encoded path of the project ](index.md#namespaced-path-encoding ) |
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| `merge_request_iid` | integer | yes | The IID of a merge request |
| `body` | string | yes | The content of the thread |
| `position` | hash | no | Position when creating a diff note |
| `position[base_sha]` | string | yes | Base commit SHA in the source branch |
| `position[start_sha]` | string | yes | SHA referencing commit in target branch |
| `position[head_sha]` | string | yes | SHA referencing HEAD of this merge request |
| `position[position_type]` | string | yes | Type of the position reference. Either `text` or `image` . |
| `position[new_path]` | string | no | File path after change |
| `position[new_line]` | integer | no | Line number after change (Only stored for `text` diff notes) |
| `position[old_path]` | string | no | File path before change |
| `position[old_line]` | integer | no | Line number before change (Only stored for `text` diff notes) |
| `position[width]` | integer | no | Width of the image (Only stored for `image` diff notes) |
| `position[height]` | integer | no | Height of the image (Only stored for `image` diff notes) |
| `position[x]` | integer | no | X coordinate (Only stored for `image` diff notes) |
| `position[y]` | integer | no | Y coordinate (Only stored for `image` diff notes) |
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```shell
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curl --request POST --header "PRIVATE-TOKEN: < your_access_token > " "https://gitlab.example.com/api/v4/projects/5/merge_requests/11/visual_review_discussions?body=comment"
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```
