curl --request POST \
  --url https://{apiBaseUrl}/api/guestprofile/entities/{entity_id}/guests/merge \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "guestIds": [
    "55468764-64be-4fc1-a43f-e37239e012bf",
    "55464550-c3d9-4115-814f-a9b83b6baaa5"
  ]
}
'

const url = 'https://{apiBaseUrl}/api/guestprofile/entities/{entity_id}/guests/merge';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    guestIds: ['55468764-64be-4fc1-a43f-e37239e012bf', '55464550-c3d9-4115-814f-a9b83b6baaa5']
  })
};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

import requests

url = "https://{apiBaseUrl}/api/guestprofile/entities/{entity_id}/guests/merge"

payload = { "guestIds": ["55468764-64be-4fc1-a43f-e37239e012bf", "55464550-c3d9-4115-814f-a9b83b6baaa5"] }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{apiBaseUrl}/api/guestprofile/entities/{entity_id}/guests/merge",
  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([
    'guestIds' => [
        '55468764-64be-4fc1-a43f-e37239e012bf',
        '55464550-c3d9-4115-814f-a9b83b6baaa5'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

using RestSharp;


var options = new RestClientOptions("https://{apiBaseUrl}/api/guestprofile/entities/{entity_id}/guests/merge");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddHeader("Authorization", "Bearer <token>");
request.AddJsonBody("{\n  \"guestIds\": [\n    \"55468764-64be-4fc1-a43f-e37239e012bf\",\n    \"55464550-c3d9-4115-814f-a9b83b6baaa5\"\n  ]\n}", false);
var response = await client.PostAsync(request);

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

HttpResponse<String> response = Unirest.post("https://{apiBaseUrl}/api/guestprofile/entities/{entity_id}/guests/merge")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"guestIds\": [\n    \"55468764-64be-4fc1-a43f-e37239e012bf\",\n    \"55464550-c3d9-4115-814f-a9b83b6baaa5\"\n  ]\n}")
  .asString();