---
title: Start device flow (with appIdentifier)
description: The GET /{{envID}}/device/{{appIdentifier}} operation returns a 302 message with a flowID embedded in the Location header for applications that specify a device auth grant. The Location header looks like this:
component: pingone-api
page_id: pingone-api:auth:openid-connect-oauth-2/device-authorization-grant/start-device-flow-with-appidentifier
canonical_url: https://developer.pingidentity.com/pingone-api/auth/openid-connect-oauth-2/device-authorization-grant/start-device-flow-with-appidentifier.html
section_ids:
  headers: Headers
  example-request: Example Request
  example-response: Example Response
---

# Start device flow (with appIdentifier)

##

```none
GET {{authPath}}/{{envID}}/device/{{appIdentifier}}
```

The `GET /{{envID}}/device/{{appIdentifier}}` operation returns a `302` message with a `flowID` embedded in the `Location` header for applications that specify a device auth grant. The `Location` header looks like this:

```none
https://apps.pingone.com/934dba65-d14e-413e-21b4-ee699a5cea21/signon/?flowId=032150b5-44a3-4b2f-8b3b-126aabb3e89f
```

The endpoint's `{{appIdentifier}}` value is set on the application configuration. The ID can be the PingOne application ID (`clientId`) or the device path ID (`devicePathId`), which is configured on the application and is used only with the `/device` endpoint.

This request supports the `user_code` query parameter. If the request URL includes the `user_code` query parameter, `GET /{{envID}}/device/{{appIdentifier}}?user_code={{userCode}}`, the sign-on flow pre-populates the activation input field with the `user_code` value returned by the `POST {{authPath}}/{{envID}}/as/device_authorization` request.

### Headers

Cookie      {{sessionToken}}

##

### Example Request

* cURL

* C#

* Go

* HTTP

* Java

* jQuery

* NodeJS

* Python

* PHP

* Ruby

* Swift

```shell
curl --location --globoff '{{authPath}}/{{envID}}/device/{{appIdentifier}}' \
--header 'Cookie: {{sessionToken}}'
```

```csharp
var options = new RestClientOptions("{{authPath}}/{{envID}}/device/{{appIdentifier}}")
{
  MaxTimeout = -1,
};
var client = new RestClient(options);
var request = new RestRequest("", Method.Get);
request.AddHeader("Cookie", "{{sessionToken}}");
RestResponse response = await client.ExecuteAsync(request);
Console.WriteLine(response.Content);
```

```golang
package main

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

func main() {

  url := "{{authPath}}/{{envID}}/device/{{appIdentifier}}"
  method := "GET"

  client := &http.Client {
  }
  req, err := http.NewRequest(method, url, nil)

  if err != nil {
    fmt.Println(err)
    return
  }
  req.Header.Add("Cookie", "{{sessionToken}}")

  res, err := client.Do(req)
  if err != nil {
    fmt.Println(err)
    return
  }
  defer res.Body.Close()

  body, err := io.ReadAll(res.Body)
  if err != nil {
    fmt.Println(err)
    return
  }
  fmt.Println(string(body))
}
```

```http
GET /{{envID}}/device/{{appIdentifier}} HTTP/1.1
Host: {{authPath}}
Cookie: {{sessionToken}}
```

```java
OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
MediaType mediaType = MediaType.parse("text/plain");
RequestBody body = RequestBody.create(mediaType, "");
Request request = new Request.Builder()
  .url("{{authPath}}/{{envID}}/device/{{appIdentifier}}")
  .method("GET", body)
  .addHeader("Cookie", "{{sessionToken}}")
  .build();
Response response = client.newCall(request).execute();
```

```javascript
var settings = {
  "url": "{{authPath}}/{{envID}}/device/{{appIdentifier}}",
  "method": "GET",
  "timeout": 0,
  "headers": {
    "Cookie": "{{sessionToken}}"
  },
};

$.ajax(settings).done(function (response) {
  console.log(response);
});
```

```javascript
var request = require('request');
var options = {
  'method': 'GET',
  'url': '{{authPath}}/{{envID}}/device/{{appIdentifier}}',
  'headers': {
    'Cookie': '{{sessionToken}}'
  }
};
request(options, function (error, response) {
  if (error) throw new Error(error);
  console.log(response.body);
});
```

```python
import requests

url = "{{authPath}}/{{envID}}/device/{{appIdentifier}}"

payload = {}
headers = {
  'Cookie': '{{sessionToken}}'
}

response = requests.request("GET", url, headers=headers, data=payload)

print(response.text)
```

```php
<?php
require_once 'HTTP/Request2.php';
$request = new HTTP_Request2();
$request->setUrl('{{authPath}}/{{envID}}/device/{{appIdentifier}}');
$request->setMethod(HTTP_Request2::METHOD_GET);
$request->setConfig(array(
  'follow_redirects' => TRUE
));
$request->setHeader(array(
  'Cookie' => '{{sessionToken}}'
));
try {
  $response = $request->send();
  if ($response->getStatus() == 200) {
    echo $response->getBody();
  }
  else {
    echo 'Unexpected HTTP status: ' . $response->getStatus() . ' ' .
    $response->getReasonPhrase();
  }
}
catch(HTTP_Request2_Exception $e) {
  echo 'Error: ' . $e->getMessage();
}
```

```ruby
require "uri"
require "net/http"

url = URI("{{authPath}}/{{envID}}/device/{{appIdentifier}}")

http = Net::HTTP.new(url.host, url.port);
request = Net::HTTP::Get.new(url)
request["Cookie"] = "{{sessionToken}}"

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

```swift
var request = URLRequest(url: URL(string: "{{authPath}}/{{envID}}/device/{{appIdentifier}}")!,timeoutInterval: Double.infinity)
request.addValue("{{sessionToken}}", forHTTPHeaderField: "Cookie")

request.httpMethod = "GET"

let task = URLSession.shared.dataTask(with: request) { data, response, error in
  guard let data = data else {
    print(String(describing: error))
    return
  }
  print(String(data: data, encoding: .utf8)!)
}

task.resume()
```

### Example Response

302 Moved Temporarily