curl --request POST \
  --url https://api.messaging.phonovation.com/ccaas/1/working-hours/{workingHoursId}/holiday \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data @- <<EOF
{
  "id": "aae9b06f-a323-4c9c-b807-7a9e4e015405",
  "workingHoursId": "07ad4193-4354-488c-b45f-293dfa4c90fb",
  "name": "New Year's Day",
  "startDate": "2021-01-01",
  "endDate": "2021-01-01",
  "enabled": true
}
EOF

import requests

url = "https://api.messaging.phonovation.com/ccaas/1/working-hours/{workingHoursId}/holiday"

payload = {
    "id": "aae9b06f-a323-4c9c-b807-7a9e4e015405",
    "workingHoursId": "07ad4193-4354-488c-b45f-293dfa4c90fb",
    "name": "New Year's Day",
    "startDate": "2021-01-01",
    "endDate": "2021-01-01",
    "enabled": True
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

using RestSharp;


var options = new RestClientOptions("https://api.messaging.phonovation.com/ccaas/1/working-hours/{workingHoursId}/holiday");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddHeader("Authorization", "<api-key>");
request.AddJsonBody("{\n  \"id\": \"aae9b06f-a323-4c9c-b807-7a9e4e015405\",\n  \"workingHoursId\": \"07ad4193-4354-488c-b45f-293dfa4c90fb\",\n  \"name\": \"New Year's Day\",\n  \"startDate\": \"2021-01-01\",\n  \"endDate\": \"2021-01-01\",\n  \"enabled\": true\n}", false);
var response = await client.PostAsync(request);

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

HttpResponse<String> response = Unirest.post("https://api.messaging.phonovation.com/ccaas/1/working-hours/{workingHoursId}/holiday")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": \"aae9b06f-a323-4c9c-b807-7a9e4e015405\",\n  \"workingHoursId\": \"07ad4193-4354-488c-b45f-293dfa4c90fb\",\n  \"name\": \"New Year's Day\",\n  \"startDate\": \"2021-01-01\",\n  \"endDate\": \"2021-01-01\",\n  \"enabled\": true\n}")
  .asString();

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.messaging.phonovation.com/ccaas/1/working-hours/{workingHoursId}/holiday",
  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([
    'id' => 'aae9b06f-a323-4c9c-b807-7a9e4e015405',
    'workingHoursId' => '07ad4193-4354-488c-b45f-293dfa4c90fb',
    'name' => 'New Year\'s Day',
    'startDate' => '2021-01-01',
    'endDate' => '2021-01-01',
    'enabled' => true
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    id: 'aae9b06f-a323-4c9c-b807-7a9e4e015405',
    workingHoursId: '07ad4193-4354-488c-b45f-293dfa4c90fb',
    name: 'New Year\'s Day',
    startDate: '2021-01-01',
    endDate: '2021-01-01',
    enabled: true
  })
};

fetch('https://api.messaging.phonovation.com/ccaas/1/working-hours/{workingHoursId}/holiday', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "id": "07ad4193-4354-488c-b45f-293dfa4c90fb",
  "timezone": "Etc/UTC",
  "message": "We're out of office, come back another time, thank you!",
  "workWeek": {
    "MONDAY": {
      "startTime": 0,
      "endTime": 1440,
      "enabled": true
    },
    "TUESDAY": {
      "startTime": 0,
      "endTime": 1440,
      "enabled": true
    },
    "WEDNESDAY": {
      "startTime": 0,
      "endTime": 1440,
      "enabled": true
    },
    "THURSDAY": {
      "startTime": 0,
      "endTime": 1440,
      "enabled": true
    },
    "FRIDAY": {
      "startTime": 0,
      "endTime": 1440,
      "enabled": true
    },
    "SATURDAY": {
      "startTime": 0,
      "endTime": 1440,
      "enabled": true
    },
    "SUNDAY": {
      "startTime": 0,
      "endTime": 1440,
      "enabled": true
    }
  },
  "name": "My Working Hours",
  "enabled": true,
  "isDefault": true,
  "closeConversations": false,
  "holidays": [
    {
      "id": "aae9b06f-a323-4c9c-b807-7a9e4e015405",
      "workingHoursId": "07ad4193-4354-488c-b45f-293dfa4c90fb",
      "name": "New Year's Day",
      "startDate": "2021-01-01",
      "endDate": "2021-01-01",
      "enabled": true
    },
    {
      "id": "6bfb9b10-caec-4f53-85a9-b87da6afa88f",
      "workingHoursId": "07ad4193-4354-488c-b45f-293dfa4c90fb",
      "name": "My Holiday",
      "startDate": "2021-06-09",
      "endDate": "2021-06-09",
      "enabled": false
    }
  ]
}

{
  "requestError": {
    "serviceException": {
      "messageId": "BAD_REQUEST",
      "text": "Invalid request body."
    }
  }
}

{
  "requestError": {
    "serviceException": {
      "messageId": "UNAUTHORIZED",
      "text": "Unauthorized"
    }
  }
}

{
  "requestError": {
    "serviceException": {
      "messageId": "FORBIDDEN",
      "text": "Forbidden"
    }
  }
}

{
  "requestError": {
    "serviceException": {
      "messageId": "NOT_FOUND",
      "text": "Invalid id '97457D13B1FC79AF3C1A1096AE7E77AB' given! No such entity exists."
    }
  }
}

{
  "requestError": {
    "serviceException": {
      "messageId": "GENERAL_ERROR",
      "text": "Something went wrong. Please contact support."
    }
  }
}