curl --request POST \
  --url https://app.flextell.ai/api/v1/appointments/{id}/cancel \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-Tenant: <x-tenant>' \
  --data '
{
  "cancellation_reason": "<string>"
}
'

import requests

url = "https://app.flextell.ai/api/v1/appointments/{id}/cancel"

payload = { "cancellation_reason": "<string>" }
headers = {
    "X-Tenant": "<x-tenant>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'X-Tenant': '<x-tenant>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({cancellation_reason: '<string>'})
};

fetch('https://app.flextell.ai/api/v1/appointments/{id}/cancel', 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://app.flextell.ai/api/v1/appointments/{id}/cancel",
  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([
    'cancellation_reason' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "X-Tenant: <x-tenant>"
  ],
]);

$response = curl_exec($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://app.flextell.ai/api/v1/appointments/{id}/cancel"

	payload := strings.NewReader("{\n  \"cancellation_reason\": \"<string>\"\n}")

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

	req.Header.Add("X-Tenant", "<x-tenant>")
	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.post("https://app.flextell.ai/api/v1/appointments/{id}/cancel")
  .header("X-Tenant", "<x-tenant>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"cancellation_reason\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.flextell.ai/api/v1/appointments/{id}/cancel")

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

request = Net::HTTP::Post.new(url)
request["X-Tenant"] = '<x-tenant>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"cancellation_reason\": \"<string>\"\n}"

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

{
  "success": "<string>",
  "data": {
    "id": 123,
    "record_state": {
      "is_read_only": true,
      "reason_code": "<string>"
    },
    "customer_id": 123,
    "room_id": 123,
    "channel_id": 123,
    "parent_appointment_id": 123,
    "code": "<string>",
    "relation_type": "<string>",
    "description": "<string>",
    "scheduled_at": "2023-11-07T05:31:56Z",
    "duration_minutes": 123,
    "status": "<string>",
    "cancellation_reason": "<string>",
    "creation_type": "<string>",
    "is_control_appointment": true,
    "is_ai_generated": true,
    "import_source_id": 123,
    "pending_scheduled_at": "2023-11-07T05:31:56Z",
    "pending_expires_at": "2023-11-07T05:31:56Z",
    "assistants": [
      {
        "id": 123,
        "name": "<string>",
        "avatar_url": "<string>"
      }
    ],
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z",
    "deleted_at": "2023-11-07T05:31:56Z",
    "sale_id": 123,
    "has_sale": true,
    "customer": {
      "id": 123,
      "record_state": {
        "is_read_only": true,
        "reason_code": "<string>"
      },
      "first_name": "<string>",
      "last_name": "<string>",
      "phone_number": "<string>",
      "email": "<string>",
      "date_of_birth": "<string>",
      "gender": "male",
      "country_id": 123,
      "country_name": "<string>",
      "city_id": 123,
      "city_name": "<string>",
      "district_id": 123,
      "district_name": "<string>",
      "identity_number": "<string>",
      "passport_number": "<string>",
      "occupation_id": 123,
      "occupation_name": "<string>",
      "address": "<string>",
      "default_channel_id": 123,
      "default_channel_name": "<string>",
      "latest_conversation_id": 123,
      "avatar_url": "<string>",
      "is_lead_stage": true,
      "lead_id": 123,
      "is_masked": true,
      "related_user": {
        "id": 123,
        "name": "<string>",
        "avatar_url": "<string>"
      },
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "deleted_at": "2023-11-07T05:31:56Z",
      "erased_at": "2023-11-07T05:31:56Z",
      "tags": [
        {
          "id": 123,
          "tenant_id": 123,
          "name": "<string>",
          "color": "<string>",
          "created_at": "2023-11-07T05:31:56Z",
          "updated_at": "2023-11-07T05:31:56Z",
          "deleted_at": "2023-11-07T05:31:56Z"
        }
      ],
      "notification_channels": {
        "default_channel_id": "<string>",
        "source": "<string>",
        "channels": [
          "<unknown>"
        ]
      },
      "import_source": {
        "id": 123,
        "name": "<string>",
        "company_logo": null
      }
    },
    "doctor": {
      "id": 123,
      "name": "<string>",
      "avatar_url": "<string>"
    },
    "room": {
      "id": 123,
      "name": "<string>",
      "status": "<string>",
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "deleted_at": "2023-11-07T05:31:56Z"
    },
    "parent_appointment": "<unknown>",
    "child_appointments": "<array>",
    "treatments": [
      {
        "id": 123,
        "group_id": 123,
        "name": "<string>",
        "invoice_name": "<string>",
        "keywords": [
          "<unknown>"
        ],
        "price": "<string>",
        "tax_rate": 123,
        "description": "<string>",
        "session": 123,
        "is_active": "<string>",
        "extra_info": {},
        "created_at": "2023-11-07T05:31:56Z",
        "updated_at": "2023-11-07T05:31:56Z",
        "deleted_at": "2023-11-07T05:31:56Z",
        "group": {
          "id": 123,
          "name": "<string>",
          "is_active": true
        },
        "users": [
          {
            "id": 123,
            "name": "<string>",
            "avatar_url": "<string>"
          }
        ],
        "sessions": [
          {
            "id": 123,
            "session_order": 123,
            "session_type": "control",
            "next_gap_days": 123,
            "offset_days": 123,
            "products": [
              {
                "id": 123,
                "product_id": 123,
                "min_quantity": 123,
                "product": {
                  "id": 123,
                  "name": "<string>",
                  "full_name": "<string>",
                  "brand": {
                    "id": 123,
                    "name": "<string>"
                  },
                  "unit_code": {
                    "id": "<string>",
                    "name": "<string>",
                    "code": "<string>"
                  }
                }
              }
            ]
          }
        ],
        "import_source": {
          "id": 123,
          "name": "<string>",
          "company_logo": null
        }
      }
    ],
    "treatment_session_plans": [
      {
        "treatment_id": 123,
        "sessions": [
          {
            "id": 123,
            "record_state": {
              "is_read_only": true,
              "reason_code": "<string>"
            },
            "appointment_id": 123,
            "session_order": 123,
            "is_custom": true,
            "session_type": "<string>",
            "offset_days": 123,
            "next_gap_days": 123,
            "scheduled_at": "2023-11-07T05:31:56Z",
            "products": [
              {
                "id": 123,
                "quantity": 123,
                "name": "<string>",
                "full_name": "<string>",
                "unit_code": {
                  "id": "<string>",
                  "name": "<string>",
                  "code": "<string>"
                }
              }
            ]
          }
        ]
      }
    ],
    "linked_sessions": [
      {
        "id": 123,
        "session_order": 123,
        "session_type": "<string>",
        "treatment": {
          "id": 123,
          "name": "<string>",
          "display_name": "<string>"
        },
        "products": [
          {
            "id": 123,
            "quantity": 123,
            "name": "<string>",
            "full_name": "<string>",
            "unit_code": {
              "id": "<string>",
              "name": "<string>",
              "code": "<string>"
            }
          }
        ]
      }
    ],
    "tags": [
      {
        "id": 123,
        "tenant_id": 123,
        "name": "<string>",
        "color": "<string>",
        "created_at": "2023-11-07T05:31:56Z",
        "updated_at": "2023-11-07T05:31:56Z",
        "deleted_at": "2023-11-07T05:31:56Z"
      }
    ],
    "reminders": [
      {
        "id": 123,
        "record_state": {
          "is_read_only": true,
          "reason_code": "<string>"
        },
        "appointment_id": 123,
        "tenant_id": 123,
        "type": "<string>",
        "offset_days": 123,
        "scheduled_for": "2023-11-07T05:31:56Z",
        "sent_at": "2023-11-07T05:31:56Z",
        "channel": "<string>",
        "message": "<string>",
        "status": "<string>",
        "approval_status": "<string>",
        "approved_at": "2023-11-07T05:31:56Z",
        "approved_by": 123,
        "metadata": [
          "<unknown>"
        ],
        "created_at": "2023-11-07T05:31:56Z",
        "updated_at": "2023-11-07T05:31:56Z",
        "appointment": {
          "id": 123,
          "record_state": {
            "is_read_only": true,
            "reason_code": "<string>"
          },
          "code": "<string>",
          "scheduled_at": "2023-11-07T05:31:56Z",
          "status": "<string>",
          "relation_type": "<string>",
          "parent_appointment_id": 123,
          "customer": {
            "id": 123,
            "record_state": {
              "is_read_only": true,
              "reason_code": "<string>"
            },
            "first_name": "<string>",
            "last_name": "<string>",
            "phone_number": "<string>",
            "email": "<string>",
            "is_masked": true,
            "is_lead_stage": true,
            "lead_id": 123
          },
          "doctor": {
            "id": 123,
            "name": "<string>",
            "avatar_url": "<string>"
          },
          "treatments": [
            {
              "id": 123,
              "name": "<string>",
              "group": {
                "id": 123,
                "name": "<string>"
              }
            }
          ],
          "parent_appointment": null
        },
        "approver": {
          "id": 123,
          "name": "<string>",
          "avatar_url": "<string>"
        }
      }
    ],
    "customer_balance": {
      "outstanding_balance": "<string>",
      "overdue_balance": "<string>",
      "currency_code": "<string>"
    },
    "import_source": {
      "id": 123,
      "name": "<string>",
      "company_logo": null
    }
  }
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}

{
  "success": true,
  "error_code": "RESOURCE_NOT_FOUND",
  "message": "<string>",
  "errors": null,
  "data": null
}

{
  "success": false,
  "error_code": "CUSTOMER_ERASED",
  "message": "<string>"
}

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

{
  "success": false,
  "error_code": "SETUP_REQUIRED",
  "message": "Complete the required setup steps to continue.",
  "data": {
    "next_step": "clinic_info"
  }
}