curl --request POST \
  --url https://b.anny.co/api/v1/bookings/{booking_id}/edit/customer \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "customer_id": "4401"
}
'

import requests

url = "https://b.anny.co/api/v1/bookings/{booking_id}/edit/customer"

payload = { "customer_id": "4401" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({customer_id: '4401'})
};

fetch('https://b.anny.co/api/v1/bookings/{booking_id}/edit/customer', 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://b.anny.co/api/v1/bookings/{booking_id}/edit/customer",
  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([
    'customer_id' => '4401'
  ]),
  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://b.anny.co/api/v1/bookings/{booking_id}/edit/customer"

	payload := strings.NewReader("{\n  \"customer_id\": \"4401\"\n}")

	req, _ := http.NewRequest("POST", 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.post("https://b.anny.co/api/v1/bookings/{booking_id}/edit/customer")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"customer_id\": \"4401\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://b.anny.co/api/v1/bookings/{booking_id}/edit/customer")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"customer_id\": \"4401\"\n}"

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

{
  "data": {
    "id": "<string>",
    "type": "bookings",
    "attributes": {
      "number": "<string>",
      "is_blocker": true,
      "start_date": "<string>",
      "end_date": "<string>",
      "blocker_start_date": "<string>",
      "blocker_end_date": "<string>",
      "description": "<string>",
      "charged_duration": 123,
      "weight": 123,
      "is_sequence": true,
      "price_hidden": true,
      "visible_for_customer": true,
      "can_edit": true,
      "is_own": true,
      "currency": "<string>",
      "tax_rate": 123,
      "total": 123,
      "is_net_total": true,
      "code": "<string>",
      "subtotal": 123,
      "charged_total": 123,
      "charged_subtotal": 123,
      "starting_fee": 123,
      "customer_note": "<string>",
      "created_at": "<string>",
      "canceled_at": "<string>",
      "check_in_date": "<string>",
      "check_out_date": "<string>",
      "custom_entry_map": {},
      "is_series": true,
      "is_series_master": true,
      "series_id": "<string>",
      "series_type": "<string>",
      "note": "<string>",
      "manually_created": true,
      "is_sub_booking": true,
      "external_uuid": "<string>",
      "has_payment": true,
      "is_editable": true,
      "status_reason": "<string>",
      "updated_at": "<string>"
    },
    "links": {
      "self": "<string>"
    },
    "relationships": {
      "resource": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "service": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "order": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "customer": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "organization": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "super_booking": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "sub_bookings": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "booking_add_ons": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "cancellation_policy": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "custom_entries": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "model_identifiers": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "activities": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "test_results": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "external_calendar": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "host": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "attendees": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "booking_participants": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "files": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "access_control_grants": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "sync_sources": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "reminders": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "sequence": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "sequenced_bookings": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "series_bookings": {
        "data": [
          {
            "type": "<string>",
            "id": "<string>"
          }
        ],
        "links": {
          "self": "<string>"
        }
      },
      "series_master": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "booking_series": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "delegated_by": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "queue_ticket": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      }
    }
  }
}