curl --request POST \
  --url https://api.{tenant}.getomneo.com/api/v3/appointments \
  --header 'Content-Type: application/json' \
  --data '
{
  "appointment_definition_id": 123,
  "profile_id": "<string>",
  "location_id": 123,
  "scheduled_start_at": "<string>",
  "scheduled_end_at": "<string>",
  "timezone": "<string>",
  "assigned_staff_id": "<string>",
  "confirmed_at": "<string>",
  "notes": "<string>",
  "meta": [
    "<string>"
  ],
  "transaction": {
    "id": 123,
    "external_id": "<string>",
    "receipt_ref": "<string>"
  },
  "order": {
    "id": 123,
    "external_id": "<string>",
    "receipt_ref": "<string>",
    "order_number": "<string>"
  },
  "answers": [
    {
      "value": "<string>",
      "questionnaire_question_id": 123
    }
  ]
}
'

import requests

url = "https://api.{tenant}.getomneo.com/api/v3/appointments"

payload = {
    "appointment_definition_id": 123,
    "profile_id": "<string>",
    "location_id": 123,
    "scheduled_start_at": "<string>",
    "scheduled_end_at": "<string>",
    "timezone": "<string>",
    "assigned_staff_id": "<string>",
    "confirmed_at": "<string>",
    "notes": "<string>",
    "meta": ["<string>"],
    "transaction": {
        "id": 123,
        "external_id": "<string>",
        "receipt_ref": "<string>"
    },
    "order": {
        "id": 123,
        "external_id": "<string>",
        "receipt_ref": "<string>",
        "order_number": "<string>"
    },
    "answers": [
        {
            "value": "<string>",
            "questionnaire_question_id": 123
        }
    ]
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    appointment_definition_id: 123,
    profile_id: '<string>',
    location_id: 123,
    scheduled_start_at: '<string>',
    scheduled_end_at: '<string>',
    timezone: '<string>',
    assigned_staff_id: '<string>',
    confirmed_at: '<string>',
    notes: '<string>',
    meta: ['<string>'],
    transaction: {id: 123, external_id: '<string>', receipt_ref: '<string>'},
    order: {
      id: 123,
      external_id: '<string>',
      receipt_ref: '<string>',
      order_number: '<string>'
    },
    answers: [{value: '<string>', questionnaire_question_id: 123}]
  })
};

fetch('https://api.{tenant}.getomneo.com/api/v3/appointments', 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.{tenant}.getomneo.com/api/v3/appointments",
  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([
    'appointment_definition_id' => 123,
    'profile_id' => '<string>',
    'location_id' => 123,
    'scheduled_start_at' => '<string>',
    'scheduled_end_at' => '<string>',
    'timezone' => '<string>',
    'assigned_staff_id' => '<string>',
    'confirmed_at' => '<string>',
    'notes' => '<string>',
    'meta' => [
        '<string>'
    ],
    'transaction' => [
        'id' => 123,
        'external_id' => '<string>',
        'receipt_ref' => '<string>'
    ],
    'order' => [
        'id' => 123,
        'external_id' => '<string>',
        'receipt_ref' => '<string>',
        'order_number' => '<string>'
    ],
    'answers' => [
        [
                'value' => '<string>',
                'questionnaire_question_id' => 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;
}

package main

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

func main() {

	url := "https://api.{tenant}.getomneo.com/api/v3/appointments"

	payload := strings.NewReader("{\n  \"appointment_definition_id\": 123,\n  \"profile_id\": \"<string>\",\n  \"location_id\": 123,\n  \"scheduled_start_at\": \"<string>\",\n  \"scheduled_end_at\": \"<string>\",\n  \"timezone\": \"<string>\",\n  \"assigned_staff_id\": \"<string>\",\n  \"confirmed_at\": \"<string>\",\n  \"notes\": \"<string>\",\n  \"meta\": [\n    \"<string>\"\n  ],\n  \"transaction\": {\n    \"id\": 123,\n    \"external_id\": \"<string>\",\n    \"receipt_ref\": \"<string>\"\n  },\n  \"order\": {\n    \"id\": 123,\n    \"external_id\": \"<string>\",\n    \"receipt_ref\": \"<string>\",\n    \"order_number\": \"<string>\"\n  },\n  \"answers\": [\n    {\n      \"value\": \"<string>\",\n      \"questionnaire_question_id\": 123\n    }\n  ]\n}")

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

	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.post("https://api.{tenant}.getomneo.com/api/v3/appointments")
  .header("Content-Type", "application/json")
  .body("{\n  \"appointment_definition_id\": 123,\n  \"profile_id\": \"<string>\",\n  \"location_id\": 123,\n  \"scheduled_start_at\": \"<string>\",\n  \"scheduled_end_at\": \"<string>\",\n  \"timezone\": \"<string>\",\n  \"assigned_staff_id\": \"<string>\",\n  \"confirmed_at\": \"<string>\",\n  \"notes\": \"<string>\",\n  \"meta\": [\n    \"<string>\"\n  ],\n  \"transaction\": {\n    \"id\": 123,\n    \"external_id\": \"<string>\",\n    \"receipt_ref\": \"<string>\"\n  },\n  \"order\": {\n    \"id\": 123,\n    \"external_id\": \"<string>\",\n    \"receipt_ref\": \"<string>\",\n    \"order_number\": \"<string>\"\n  },\n  \"answers\": [\n    {\n      \"value\": \"<string>\",\n      \"questionnaire_question_id\": 123\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.{tenant}.getomneo.com/api/v3/appointments")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"appointment_definition_id\": 123,\n  \"profile_id\": \"<string>\",\n  \"location_id\": 123,\n  \"scheduled_start_at\": \"<string>\",\n  \"scheduled_end_at\": \"<string>\",\n  \"timezone\": \"<string>\",\n  \"assigned_staff_id\": \"<string>\",\n  \"confirmed_at\": \"<string>\",\n  \"notes\": \"<string>\",\n  \"meta\": [\n    \"<string>\"\n  ],\n  \"transaction\": {\n    \"id\": 123,\n    \"external_id\": \"<string>\",\n    \"receipt_ref\": \"<string>\"\n  },\n  \"order\": {\n    \"id\": 123,\n    \"external_id\": \"<string>\",\n    \"receipt_ref\": \"<string>\",\n    \"order_number\": \"<string>\"\n  },\n  \"answers\": [\n    {\n      \"value\": \"<string>\",\n      \"questionnaire_question_id\": 123\n    }\n  ]\n}"

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

{
  "data": {
    "id": 123,
    "appointment_definition_id": 123,
    "appointment_definition": {
      "id": 123,
      "handle": "<string>",
      "name": "<string>",
      "description": "<string>",
      "short_description": "<string>",
      "long_description": "<string>",
      "icon": "<string>",
      "image_url": "<string>",
      "terms_conditions": "<string>",
      "internal_notes": "<string>",
      "visibility_condition": [
        "<unknown>"
      ],
      "is_published": true,
      "is_archived": true,
      "duration_minutes": 123,
      "buffer_before_minutes": 123,
      "buffer_after_minutes": 123,
      "min_lead_minutes": 123,
      "max_advance_days": 123,
      "slot_interval_minutes": 123,
      "booking_type": "<string>",
      "allow_customer_booking": true,
      "allow_walk_in": true,
      "requires_staff": true,
      "customer_must_select_staff": true,
      "use_staff_from_location": true,
      "max_concurrent_bookings": 123,
      "allow_waitlist": true,
      "allow_queue": true,
      "meta": [
        "<unknown>"
      ],
      "created_target_id": 123,
      "confirmed_target_id": 123,
      "cancelled_target_id": 123,
      "rejected_target_id": 123,
      "reminder_target_id": 123,
      "completed_target_id": 123,
      "notify_created_offset_days": 123,
      "notify_created_offset_hours": 123,
      "notify_confirmed_offset_days": 123,
      "notify_confirmed_offset_hours": 123,
      "notify_cancelled_offset_days": 123,
      "notify_cancelled_offset_hours": 123,
      "notify_rejected_offset_days": 123,
      "notify_rejected_offset_hours": 123,
      "notify_reminder_offset_days": 123,
      "notify_reminder_offset_hours": 123,
      "notify_completed_offset_days": 123,
      "notify_completed_offset_hours": 123,
      "has_booking_questionnaire": true,
      "created_at": "<string>",
      "updated_at": "<string>",
      "normal_hours": [
        {
          "id": 123,
          "appointment_definition_id": 123,
          "day_of_week": "<string>",
          "available_from": "<string>",
          "available_until": "<string>",
          "is_closed": "<string>",
          "created_at": "<string>",
          "updated_at": "<string>"
        }
      ],
      "special_hours": [
        {
          "id": 123,
          "appointment_definition_id": 123,
          "name": "<string>",
          "is_repeating": true,
          "available_from": "<string>",
          "available_until": "<string>",
          "start_at": "<string>",
          "end_at": "<string>",
          "is_closed": "<string>",
          "created_at": "<string>",
          "updated_at": "<string>"
        }
      ],
      "locations": [
        "<unknown>"
      ],
      "staff": [
        {
          "id": 123,
          "appointment_definition_id": 123,
          "staff_id": "<string>",
          "is_active": true,
          "staff": {
            "id": "<string>",
            "first_name": "<string>",
            "last_name": "<string>",
            "email": "<string>",
            "mobile_phone": "<string>",
            "normal_hours": [
              {
                "id": "<string>",
                "day_of_week": "<string>",
                "available_from": "<string>",
                "available_until": "<string>",
                "is_closed": "<string>"
              }
            ],
            "special_hours": [
              {
                "id": "<string>",
                "name": "<string>",
                "is_repeating": "<string>",
                "available_from": "<string>",
                "available_until": "<string>",
                "start_at": "<string>",
                "end_at": "<string>"
              }
            ]
          },
          "created_at": "<string>",
          "updated_at": "<string>"
        }
      ],
      "booking_questionnaire": {
        "id": "<string>",
        "name": "<string>",
        "purpose": "<string>",
        "is_active": "<string>",
        "pages": "<string>"
      }
    },
    "profile_id": "<string>",
    "profile": {
      "id": "<string>",
      "first_name": "<string>",
      "last_name": "<string>",
      "email": "<string>"
    },
    "location_id": 123,
    "location": {
      "id": 123,
      "name": "<string>",
      "handle": "<string>",
      "timezone": "<string>"
    },
    "assigned_staff_id": "<string>",
    "assigned_staff": {
      "id": "<string>",
      "first_name": "<string>",
      "last_name": "<string>",
      "email": "<string>"
    },
    "status": "<string>",
    "scheduled_start_at": "<string>",
    "scheduled_end_at": "<string>",
    "timezone": "<string>",
    "approved_at": "<string>",
    "confirmed_at": "<string>",
    "cancelled_at": "<string>",
    "arrived_at": "<string>",
    "completed_at": "<string>",
    "no_show_at": "<string>",
    "rejected_at": "<string>",
    "approved_by": "<string>",
    "cancelled_by": "<string>",
    "rejected_by": "<string>",
    "transaction_id": 123,
    "order_id": 123,
    "notes": "<string>",
    "meta": [
      "<unknown>"
    ],
    "created_at": "<string>",
    "updated_at": "<string>",
    "transaction": {
      "id": 123,
      "external_id": "<string>",
      "receipt_ref": "<string>",
      "total": 123,
      "status": "<string>"
    },
    "order": {
      "id": 123,
      "external_id": "<string>",
      "receipt_ref": "<string>",
      "order_number": "<string>",
      "total": 123,
      "status": "<string>"
    },
    "answers": [
      {
        "id": 123,
        "questionnaire_id": 123,
        "questionnaire_question_id": 123,
        "question_id": 123,
        "question_version_id": 123,
        "profile_id": "<string>",
        "answerable_type": "<string>",
        "answerable_id": "<string>",
        "mapping_key": "<string>",
        "link_type": "<string>",
        "link_target": "<string>",
        "link_write_policy": "<string>",
        "question_label": "<string>",
        "question_type": "<string>",
        "question_required": true,
        "answer_type": "<string>",
        "value": true,
        "mappable_type": "<string>",
        "mappable_id": "<string>",
        "mapped_field": "<string>",
        "mapping_status": "<string>",
        "mapping_error": "<string>",
        "mapped_at": "<string>",
        "meta": [
          "<unknown>"
        ],
        "created_at": "<string>",
        "updated_at": "<string>",
        "question_handle": "<string>"
      }
    ],
    "links": [
      {
        "id": "<string>",
        "type": "<string>",
        "target_id": "<string>",
        "profile": {
          "id": "<string>",
          "first_name": "<string>",
          "last_name": "<string>",
          "email": "<string>"
        },
        "linkable": {
          "id": "<string>",
          "name": "<string>",
          "handle": "<string>",
          "profile_id": "<string>"
        }
      }
    ]
  }
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}

{
  "message": "<string>",
  "errors": {}
}