curl --request PUT \
  --url https://api.novacal.io/v1/availabilities/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Mornings only",
  "timezone": "Europe/Belgrade",
  "hours": {
    "monday": [
      {
        "start": "09:00",
        "end": "12:00"
      }
    ]
  }
}
'

import requests

url = "https://api.novacal.io/v1/availabilities/{id}"

payload = {
    "name": "Mornings only",
    "timezone": "Europe/Belgrade",
    "hours": { "monday": [
            {
                "start": "09:00",
                "end": "12:00"
            }
        ] }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'Mornings only',
    timezone: 'Europe/Belgrade',
    hours: {monday: [{start: '09:00', end: '12:00'}]}
  })
};

fetch('https://api.novacal.io/v1/availabilities/{id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.novacal.io/v1/availabilities/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'name' => 'Mornings only',
    'timezone' => 'Europe/Belgrade',
    'hours' => [
        'monday' => [
                [
                                'start' => '09:00',
                                'end' => '12:00'
                ]
        ]
    ]
  ]),
  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;
}

package main

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

func main() {

	url := "https://api.novacal.io/v1/availabilities/{id}"

	payload := strings.NewReader("{\n  \"name\": \"Mornings only\",\n  \"timezone\": \"Europe/Belgrade\",\n  \"hours\": {\n    \"monday\": [\n      {\n        \"start\": \"09:00\",\n        \"end\": \"12:00\"\n      }\n    ]\n  }\n}")

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

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

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://api.novacal.io/v1/availabilities/{id}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Mornings only\",\n  \"timezone\": \"Europe/Belgrade\",\n  \"hours\": {\n    \"monday\": [\n      {\n        \"start\": \"09:00\",\n        \"end\": \"12:00\"\n      }\n    ]\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.novacal.io/v1/availabilities/{id}")

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

request = Net::HTTP::Put.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"Mornings only\",\n  \"timezone\": \"Europe/Belgrade\",\n  \"hours\": {\n    \"monday\": [\n      {\n        \"start\": \"09:00\",\n        \"end\": \"12:00\"\n      }\n    ]\n  }\n}"

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

{
  "success": true,
  "data": {
    "id": 7,
    "name": "Working hours",
    "timezone": "Europe/Belgrade",
    "is_default": true,
    "working_days": [
      "monday",
      "tuesday"
    ],
    "hours": {
      "monday": [
        {
          "start": "09:00",
          "end": "17:00"
        }
      ],
      "tuesday": [
        {
          "start": "09:00",
          "end": "12:00"
        },
        {
          "start": "14:00",
          "end": "17:00"
        }
      ]
    },
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  }
}