using RestSharp;


var options = new RestClientOptions("http://localhost:54464/api/v1/Agents/Pocket/RegisterDeviceForPushNotification");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddJsonBody("{\n  \"DeviceInfo\": {\n    \"DeviceName\": \"<string>\",\n    \"DeviceIdentifier\": \"<string>\",\n    \"PocketVersion\": \"<string>\",\n    \"Language\": \"<string>\",\n    \"PNSHandle\": \"<string>\",\n    \"OSVersion\": \"<string>\",\n    \"TimeZoneId\": 123\n  }\n}", false);
var response = await client.PostAsync(request);

Console.WriteLine("{0}", response.Content);

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    DeviceInfo: {
      DeviceName: '<string>',
      DeviceIdentifier: '<string>',
      PocketVersion: '<string>',
      Language: '<string>',
      PNSHandle: '<string>',
      OSVersion: '<string>',
      TimeZoneId: 123
    }
  })
};

fetch('http://localhost:54464/api/v1/Agents/Pocket/RegisterDeviceForPushNotification', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_PORT => "54464",
  CURLOPT_URL => "http://localhost:54464/api/v1/Agents/Pocket/RegisterDeviceForPushNotification",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'DeviceInfo' => [
        'DeviceName' => '<string>',
        'DeviceIdentifier' => '<string>',
        'PocketVersion' => '<string>',
        'Language' => '<string>',
        'PNSHandle' => '<string>',
        'OSVersion' => '<string>',
        'TimeZoneId' => 123
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

import requests

url = "http://localhost:54464/api/v1/Agents/Pocket/RegisterDeviceForPushNotification"

payload = { "DeviceInfo": {
        "DeviceName": "<string>",
        "DeviceIdentifier": "<string>",
        "PocketVersion": "<string>",
        "Language": "<string>",
        "PNSHandle": "<string>",
        "OSVersion": "<string>",
        "TimeZoneId": 123
    } }
headers = {"Content-Type": "application/json"}

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

print(response.text)