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# ✨ Update task assignee

PATCH http://localhost:8000/api/projects/{id}/tasks/{task_pk}/assignees
Content-Type: application/json

This endpoint is not available in Label Studio Community Edition. [Learn more about Label Studio Enterprise](https://humansignal.com/goenterprise)

Update the assignee for a task in a specific project.

Reference: https://api.labelstud.io/api-reference/api-reference/projects/assignments/update

## Authentication

- `Authorization` header (required) (prefixed with ` Token   `) — The token (or API key) must be passed as a request header. You can find your user token on the User Account page in Label Studio. Example: curl [https://label-studio-host/api/projects](https://label-studio-host/api/projects) -H "Authorization: Token \[your-token]"

## Request

### Path parameters

- `id` (integer, required) — A unique integer value identifying this project.
- `task_pk` (integer, required) — A unique integer value identifying this task.

### Body (application/json)

This endpoint expects a PatchedTaskAssigneesMutationRequest.

- `type` (enum, optional) — * `AN` - Annotate * `RE` - Review
  - Allowed values: `AN`, `RE`
- `users` (list of integer, optional)

## Response

### 200

- `assignee` (integer, required) — Assigned user
- `created_at` (datetime, required) — Time of assignment
- `id` (integer, required)
- `state` (string, required)
- `task` (integer, required) — Assigned task
- `type` (enum, optional) — Type of assignment: Annotate|Review * `AN` - Annotate * `RE` - Review
  - Allowed values: `AN`, `RE`

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "assignee": 1,
  "created_at": "2024-01-15T09:30:00Z",
  "id": 1,
  "state": "string",
  "task": 1,
  "type": "AN"
}
```

**SDK Code**

```python
import requests

url = "http://localhost:8000/api/projects/1/tasks/1/assignees"

payload = {}
headers = {
    "Authorization": "Token  <api_key>",
    "Content-Type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'http://localhost:8000/api/projects/1/tasks/1/assignees';
const options = {
  method: 'PATCH',
  headers: {Authorization: 'Token  <api_key>', 'Content-Type': 'application/json'},
  body: '{}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "http://localhost:8000/api/projects/1/tasks/1/assignees"

	payload := strings.NewReader("{}")

	req, _ := http.NewRequest("PATCH", url, payload)

	req.Header.Add("Authorization", "Token  <api_key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("http://localhost:8000/api/projects/1/tasks/1/assignees")

http = Net::HTTP.new(url.host, url.port)

request = Net::HTTP::Patch.new(url)
request["Authorization"] = 'Token  <api_key>'
request["Content-Type"] = 'application/json'
request.body = "{}"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.patch("http://localhost:8000/api/projects/1/tasks/1/assignees")
  .header("Authorization", "Token  <api_key>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('PATCH', 'http://localhost:8000/api/projects/1/tasks/1/assignees', [
  'body' => '{}',
  'headers' => [
    'Authorization' => 'Token  <api_key>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("http://localhost:8000/api/projects/1/tasks/1/assignees");
var request = new RestRequest(Method.PATCH);
request.AddHeader("Authorization", "Token  <api_key>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Token  <api_key>",
  "Content-Type": "application/json"
]
let parameters = [] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "http://localhost:8000/api/projects/1/tasks/1/assignees")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "PATCH"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```