curl --request POST \
  --url https://api.aisa.one/apis/v1/duffel/flights/order-change-requests/create \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "data": {
    "order_id": "ord_0000A3bQ8FJIQoEfuC07n6",
    "private_fares": {
      "UA": [
        {
          "corporate_code": "1234",
          "tour_code": "578DFL"
        }
      ]
    },
    "slices": {
      "add": [
        {
          "cabin_class": "economy",
          "departure_date": "2020-04-24",
          "destination": "JFK",
          "origin": "LHR"
        }
      ],
      "remove": [
        {
          "slice_id": "xxx_00009hthhsUZ8W4LxQgkjo"
        }
      ]
    }
  }
}
'

import requests

url = "https://api.aisa.one/apis/v1/duffel/flights/order-change-requests/create"

payload = { "data": {
        "order_id": "ord_0000A3bQ8FJIQoEfuC07n6",
        "private_fares": { "UA": [
                {
                    "corporate_code": "1234",
                    "tour_code": "578DFL"
                }
            ] },
        "slices": {
            "add": [
                {
                    "cabin_class": "economy",
                    "departure_date": "2020-04-24",
                    "destination": "JFK",
                    "origin": "LHR"
                }
            ],
            "remove": [{ "slice_id": "xxx_00009hthhsUZ8W4LxQgkjo" }]
        }
    } }
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({
    data: {
      order_id: 'ord_0000A3bQ8FJIQoEfuC07n6',
      private_fares: {UA: [{corporate_code: '1234', tour_code: '578DFL'}]},
      slices: {
        add: [
          {
            cabin_class: 'economy',
            departure_date: '2020-04-24',
            destination: 'JFK',
            origin: 'LHR'
          }
        ],
        remove: [{slice_id: 'xxx_00009hthhsUZ8W4LxQgkjo'}]
      }
    }
  })
};

fetch('https://api.aisa.one/apis/v1/duffel/flights/order-change-requests/create', 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.aisa.one/apis/v1/duffel/flights/order-change-requests/create",
  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([
    'data' => [
        'order_id' => 'ord_0000A3bQ8FJIQoEfuC07n6',
        'private_fares' => [
                'UA' => [
                                [
                                                                'corporate_code' => '1234',
                                                                'tour_code' => '578DFL'
                                ]
                ]
        ],
        'slices' => [
                'add' => [
                                [
                                                                'cabin_class' => 'economy',
                                                                'departure_date' => '2020-04-24',
                                                                'destination' => 'JFK',
                                                                'origin' => 'LHR'
                                ]
                ],
                'remove' => [
                                [
                                                                'slice_id' => 'xxx_00009hthhsUZ8W4LxQgkjo'
                                ]
                ]
        ]
    ]
  ]),
  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.aisa.one/apis/v1/duffel/flights/order-change-requests/create"

	payload := strings.NewReader("{\n  \"data\": {\n    \"order_id\": \"ord_0000A3bQ8FJIQoEfuC07n6\",\n    \"private_fares\": {\n      \"UA\": [\n        {\n          \"corporate_code\": \"1234\",\n          \"tour_code\": \"578DFL\"\n        }\n      ]\n    },\n    \"slices\": {\n      \"add\": [\n        {\n          \"cabin_class\": \"economy\",\n          \"departure_date\": \"2020-04-24\",\n          \"destination\": \"JFK\",\n          \"origin\": \"LHR\"\n        }\n      ],\n      \"remove\": [\n        {\n          \"slice_id\": \"xxx_00009hthhsUZ8W4LxQgkjo\"\n        }\n      ]\n    }\n  }\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://api.aisa.one/apis/v1/duffel/flights/order-change-requests/create")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"data\": {\n    \"order_id\": \"ord_0000A3bQ8FJIQoEfuC07n6\",\n    \"private_fares\": {\n      \"UA\": [\n        {\n          \"corporate_code\": \"1234\",\n          \"tour_code\": \"578DFL\"\n        }\n      ]\n    },\n    \"slices\": {\n      \"add\": [\n        {\n          \"cabin_class\": \"economy\",\n          \"departure_date\": \"2020-04-24\",\n          \"destination\": \"JFK\",\n          \"origin\": \"LHR\"\n        }\n      ],\n      \"remove\": [\n        {\n          \"slice_id\": \"xxx_00009hthhsUZ8W4LxQgkjo\"\n        }\n      ]\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.aisa.one/apis/v1/duffel/flights/order-change-requests/create")

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  \"data\": {\n    \"order_id\": \"ord_0000A3bQ8FJIQoEfuC07n6\",\n    \"private_fares\": {\n      \"UA\": [\n        {\n          \"corporate_code\": \"1234\",\n          \"tour_code\": \"578DFL\"\n        }\n      ]\n    },\n    \"slices\": {\n      \"add\": [\n        {\n          \"cabin_class\": \"economy\",\n          \"departure_date\": \"2020-04-24\",\n          \"destination\": \"JFK\",\n          \"origin\": \"LHR\"\n        }\n      ],\n      \"remove\": [\n        {\n          \"slice_id\": \"xxx_00009hthhsUZ8W4LxQgkjo\"\n        }\n      ]\n    }\n  }\n}"

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

{
  "data": {
    "id": "<string>",
    "order_change_offers": [
      {
        "id": "<string>",
        "new_total_amount": "<string>",
        "penalty_total_amount": "<string>",
        "change_total_amount": "<string>"
      }
    ]
  }
}

{
  "data": {
    "created_at": "2020-01-17T10:12:14.545Z",
    "id": "ocr_0000A3bQP9RLVfNUcdpLpw",
    "live_mode": false,
    "order_change_offers": [
      {
        "change_total_amount": "90.80",
        "change_total_currency": "GBP",
        "conditions": {
          "change_before_departure": {
            "allowed": true,
            "penalty_amount": "100.00",
            "penalty_currency": "GBP"
          },
          "refund_before_departure": {
            "allowed": true,
            "penalty_amount": "100.00",
            "penalty_currency": "GBP"
          }
        },
        "created_at": "2020-01-17T10:12:14.545Z",
        "expires_at": "2020-01-17T10:42:14.545Z",
        "id": "oco_0000A3vUda8dKRtUSQPSXw",
        "live_mode": false,
        "new_total_amount": "35.50",
        "new_total_currency": "GBP",
        "order_change_id": "oce_0000A4QasEUIjJ6jHKfhHU",
        "penalty_total_amount": "10.50",
        "penalty_total_currency": "GBP",
        "private_fares": [
          {
            "corporate_code": "FLX53",
            "tour_code": "578DFL",
            "tracking_reference": "ABN:2345678",
            "type": "corporate"
          }
        ],
        "refund_to": "original_form_of_payment",
        "slices": {
          "add": [
            {
              "destination": {
                "city_name": "London",
                "iata_city_code": "LON",
                "iata_code": "LHR",
                "iata_country_code": "GB",
                "icao_code": "EGLL",
                "id": "arp_lhr_gb",
                "latitude": 64.068865,
                "longitude": -141.951519,
                "name": "Heathrow",
                "time_zone": "Europe/London",
                "type": "airport",
                "airports": [
                  {
                    "city_name": "London",
                    "iata_city_code": "LON",
                    "iata_code": "LHR",
                    "iata_country_code": "GB",
                    "icao_code": "EGLL",
                    "id": "arp_lhr_gb",
                    "latitude": 64.068865,
                    "longitude": -141.951519,
                    "name": "Heathrow",
                    "time_zone": "Europe/London",
                    "city": {
                      "airports": [
                        {
                          "iata_code": "LHR",
                          "iata_country_code": "GB",
                          "icao_code": "EGLL",
                          "id": "arp_lhr_gb",
                          "latitude": 64.068865,
                          "longitude": -141.951519,
                          "name": "Heathrow",
                          "time_zone": "Europe/London"
                        }
                      ],
                      "iata_code": "LON",
                      "iata_country_code": "GB",
                      "id": "cit_lon_gb",
                      "name": "London"
                    }
                  }
                ],
                "city": {
                  "airports": [
                    {
                      "iata_code": "LHR",
                      "iata_country_code": "GB",
                      "icao_code": "EGLL",
                      "id": "arp_lhr_gb",
                      "latitude": 64.068865,
                      "longitude": -141.951519,
                      "name": "Heathrow",
                      "time_zone": "Europe/London"
                    }
                  ],
                  "iata_code": "LON",
                  "iata_country_code": "GB",
                  "id": "cit_lon_gb",
                  "name": "London"
                }
              },
              "destination_type": "airport",
              "duration": "PT02H26M",
              "fare_brand_name": "Basic",
              "id": "xxx_00009hthhsUZ8W4LxQgkjo",
              "origin": {
                "city_name": "London",
                "iata_city_code": "LON",
                "iata_code": "LHR",
                "iata_country_code": "GB",
                "icao_code": "EGLL",
                "id": "arp_lhr_gb",
                "latitude": 64.068865,
                "longitude": -141.951519,
                "name": "Heathrow",
                "time_zone": "Europe/London",
                "type": "airport",
                "airports": [
                  {
                    "city_name": "London",
                    "iata_city_code": "LON",
                    "iata_code": "LHR",
                    "iata_country_code": "GB",
                    "icao_code": "EGLL",
                    "id": "arp_lhr_gb",
                    "latitude": 64.068865,
                    "longitude": -141.951519,
                    "name": "Heathrow",
                    "time_zone": "Europe/London",
                    "city": {
                      "airports": [
                        {
                          "iata_code": "LHR",
                          "iata_country_code": "GB",
                          "icao_code": "EGLL",
                          "id": "arp_lhr_gb",
                          "latitude": 64.068865,
                          "longitude": -141.951519,
                          "name": "Heathrow",
                          "time_zone": "Europe/London"
                        }
                      ],
                      "iata_code": "LON",
                      "iata_country_code": "GB",
                      "id": "cit_lon_gb",
                      "name": "London"
                    }
                  }
                ],
                "city": {
                  "airports": [
                    {
                      "iata_code": "LHR",
                      "iata_country_code": "GB",
                      "icao_code": "EGLL",
                      "id": "arp_lhr_gb",
                      "latitude": 64.068865,
                      "longitude": -141.951519,
                      "name": "Heathrow",
                      "time_zone": "Europe/London"
                    }
                  ],
                  "iata_code": "LON",
                  "iata_country_code": "GB",
                  "id": "cit_lon_gb",
                  "name": "London"
                }
              },
              "origin_type": "airport",
              "segments": [
                {
                  "aircraft": {
                    "iata_code": "380",
                    "id": "arc_00009UhD4ongolulWd91Ky",
                    "name": "Airbus Industries A380"
                  },
                  "arriving_at": "2020-06-13T16:38:02",
                  "departing_at": "2020-06-13T16:38:02",
                  "destination": {
                    "city": {
                      "iata_code": "NYC",
                      "iata_country_code": "US",
                      "id": "cit_nyc_us",
                      "name": "New York"
                    },
                    "city_name": "New York",
                    "iata_city_code": "NYC",
                    "iata_code": "JFK",
                    "iata_country_code": "US",
                    "icao_code": "KJFK",
                    "id": "arp_jfk_us",
                    "latitude": 40.640556,
                    "longitude": -73.778519,
                    "name": "John F. Kennedy International Airport",
                    "time_zone": "America/New_York"
                  },
                  "destination_terminal": "5",
                  "distance": "424.2",
                  "duration": "PT02H26M",
                  "id": "xxx_00009hthhsUZ8W4LxQgkjo",
                  "marketing_carrier": {
                    "conditions_of_carriage_url": "https://www.britishairways.com/en-gb/information/legal/british-airways/general-conditions-of-carriage",
                    "iata_code": "BA",
                    "id": "arl_00001876aqC8c5umZmrRds",
                    "logo_lockup_url": "https://assets.duffel.com/img/airlines/for-light-background/full-color-lockup/BA.svg",
                    "logo_symbol_url": "https://assets.duffel.com/img/airlines/for-light-background/full-color-logo/BA.svg",
                    "name": "British Airways"
                  },
                  "marketing_carrier_flight_number": "1234",
                  "operating_carrier": {
                    "conditions_of_carriage_url": "https://www.britishairways.com/en-gb/information/legal/british-airways/general-conditions-of-carriage",
                    "iata_code": "BA",
                    "id": "arl_00001876aqC8c5umZmrRds",
                    "logo_lockup_url": "https://assets.duffel.com/img/airlines/for-light-background/full-color-lockup/BA.svg",
                    "logo_symbol_url": "https://assets.duffel.com/img/airlines/for-light-background/full-color-logo/BA.svg",
                    "name": "British Airways"
                  },
                  "operating_carrier_flight_number": "4321",
                  "origin": {
                    "city_name": "London",
                    "iata_city_code": "LON",
                    "iata_code": "LHR",
                    "iata_country_code": "GB",
                    "icao_code": "EGLL",
                    "id": "arp_lhr_gb",
                    "latitude": 64.068865,
                    "longitude": -141.951519,
                    "name": "Heathrow",
                    "time_zone": "Europe/London",
                    "city": {
                      "airports": [
                        {
                          "iata_code": "LHR",
                          "iata_country_code": "GB",
                          "icao_code": "EGLL",
                          "id": "arp_lhr_gb",
                          "latitude": 64.068865,
                          "longitude": -141.951519,
                          "name": "Heathrow",
                          "time_zone": "Europe/London"
                        }
                      ],
                      "iata_code": "LON",
                      "iata_country_code": "GB",
                      "id": "cit_lon_gb",
                      "name": "London"
                    }
                  },
                  "origin_terminal": "B",
                  "passengers": [
                    {
                      "baggages": [
                        {
                          "quantity": 1,
                          "type": "checked"
                        }
                      ],
                      "cabin_class": "economy",
                      "cabin_class_marketing_name": "Economy Basic",
                      "passenger_id": "passenger_0",
                      "seat": {
                        "designator": "14B",
                        "disclosures": [
                          "Do not seat children in exit row seats",
                          "Do not seat passengers with special needs in exit row seats"
                        ],
                        "name": "Exit row seat"
                      }
                    }
                  ]
                }
              ]
            }
          ],
          "remove": [
            {
              "destination": {
                "city_name": "London",
                "iata_city_code": "LON",
                "iata_code": "LHR",
                "iata_country_code": "GB",
                "icao_code": "EGLL",
                "id": "arp_lhr_gb",
                "latitude": 64.068865,
                "longitude": -141.951519,
                "name": "Heathrow",
                "time_zone": "Europe/London",
                "type": "airport",
                "airports": [
                  {
                    "city_name": "London",
                    "iata_city_code": "LON",
                    "iata_code": "LHR",
                    "iata_country_code": "GB",
                    "icao_code": "EGLL",
                    "id": "arp_lhr_gb",
                    "latitude": 64.068865,
                    "longitude": -141.951519,
                    "name": "Heathrow",
                    "time_zone": "Europe/London",
                    "city": {
                      "airports": [
                        {
                          "iata_code": "LHR",
                          "iata_country_code": "GB",
                          "icao_code": "EGLL",
                          "id": "arp_lhr_gb",
                          "latitude": 64.068865,
                          "longitude": -141.951519,
                          "name": "Heathrow",
                          "time_zone": "Europe/London"
                        }
                      ],
                      "iata_code": "LON",
                      "iata_country_code": "GB",
                      "id": "cit_lon_gb",
                      "name": "London"
                    }
                  }
                ],
                "city": {
                  "airports": [
                    {
                      "iata_code": "LHR",
                      "iata_country_code": "GB",
                      "icao_code": "EGLL",
                      "id": "arp_lhr_gb",
                      "latitude": 64.068865,
                      "longitude": -141.951519,
                      "name": "Heathrow",
                      "time_zone": "Europe/London"
                    }
                  ],
                  "iata_code": "LON",
                  "iata_country_code": "GB",
                  "id": "cit_lon_gb",
                  "name": "London"
                }
              },
              "destination_type": "airport",
              "duration": "PT02H26M",
              "fare_brand_name": "Basic",
              "id": "xxx_00009hthhsUZ8W4LxQgkjo",
              "origin": {
                "city_name": "London",
                "iata_city_code": "LON",
                "iata_code": "LHR",
                "iata_country_code": "GB",
                "icao_code": "EGLL",
                "id": "arp_lhr_gb",
                "latitude": 64.068865,
                "longitude": -141.951519,
                "name": "Heathrow",
                "time_zone": "Europe/London",
                "type": "airport",
                "airports": [
                  {
                    "city_name": "London",
                    "iata_city_code": "LON",
                    "iata_code": "LHR",
                    "iata_country_code": "GB",
                    "icao_code": "EGLL",
                    "id": "arp_lhr_gb",
                    "latitude": 64.068865,
                    "longitude": -141.951519,
                    "name": "Heathrow",
                    "time_zone": "Europe/London",
                    "city": {
                      "airports": [
                        {
                          "iata_code": "LHR",
                          "iata_country_code": "GB",
                          "icao_code": "EGLL",
                          "id": "arp_lhr_gb",
                          "latitude": 64.068865,
                          "longitude": -141.951519,
                          "name": "Heathrow",
                          "time_zone": "Europe/London"
                        }
                      ],
                      "iata_code": "LON",
                      "iata_country_code": "GB",
                      "id": "cit_lon_gb",
                      "name": "London"
                    }
                  }
                ],
                "city": {
                  "airports": [
                    {
                      "iata_code": "LHR",
                      "iata_country_code": "GB",
                      "icao_code": "EGLL",
                      "id": "arp_lhr_gb",
                      "latitude": 64.068865,
                      "longitude": -141.951519,
                      "name": "Heathrow",
                      "time_zone": "Europe/London"
                    }
                  ],
                  "iata_code": "LON",
                  "iata_country_code": "GB",
                  "id": "cit_lon_gb",
                  "name": "London"
                }
              },
              "origin_type": "airport",
              "segments": [
                {
                  "aircraft": {
                    "iata_code": "380",
                    "id": "arc_00009UhD4ongolulWd91Ky",
                    "name": "Airbus Industries A380"
                  },
                  "arriving_at": "2020-06-13T16:38:02",
                  "departing_at": "2020-06-13T16:38:02",
                  "destination": {
                    "city": {
                      "iata_code": "NYC",
                      "iata_country_code": "US",
                      "id": "cit_nyc_us",
                      "name": "New York"
                    },
                    "city_name": "New York",
                    "iata_city_code": "NYC",
                    "iata_code": "JFK",
                    "iata_country_code": "US",
                    "icao_code": "KJFK",
                    "id": "arp_jfk_us",
                    "latitude": 40.640556,
                    "longitude": -73.778519,
                    "name": "John F. Kennedy International Airport",
                    "time_zone": "America/New_York"
                  },
                  "destination_terminal": "5",
                  "distance": "424.2",
                  "duration": "PT02H26M",
                  "id": "xxx_00009hthhsUZ8W4LxQgkjo",
                  "marketing_carrier": {
                    "conditions_of_carriage_url": "https://www.britishairways.com/en-gb/information/legal/british-airways/general-conditions-of-carriage",
                    "iata_code": "BA",
                    "id": "arl_00001876aqC8c5umZmrRds",
                    "logo_lockup_url": "https://assets.duffel.com/img/airlines/for-light-background/full-color-lockup/BA.svg",
                    "logo_symbol_url": "https://assets.duffel.com/img/airlines/for-light-background/full-color-logo/BA.svg",
                    "name": "British Airways"
                  },
                  "marketing_carrier_flight_number": "1234",
                  "operating_carrier": {
                    "conditions_of_carriage_url": "https://www.britishairways.com/en-gb/information/legal/british-airways/general-conditions-of-carriage",
                    "iata_code": "BA",
                    "id": "arl_00001876aqC8c5umZmrRds",
                    "logo_lockup_url": "https://assets.duffel.com/img/airlines/for-light-background/full-color-lockup/BA.svg",
                    "logo_symbol_url": "https://assets.duffel.com/img/airlines/for-light-background/full-color-logo/BA.svg",
                    "name": "British Airways"
                  },
                  "operating_carrier_flight_number": "4321",
                  "origin": {
                    "city_name": "London",
                    "iata_city_code": "LON",
                    "iata_code": "LHR",
                    "iata_country_code": "GB",
                    "icao_code": "EGLL",
                    "id": "arp_lhr_gb",
                    "latitude": 64.068865,
                    "longitude": -141.951519,
                    "name": "Heathrow",
                    "time_zone": "Europe/London",
                    "city": {
                      "airports": [
                        {
                          "iata_code": "LHR",
                          "iata_country_code": "GB",
                          "icao_code": "EGLL",
                          "id": "arp_lhr_gb",
                          "latitude": 64.068865,
                          "longitude": -141.951519,
                          "name": "Heathrow",
                          "time_zone": "Europe/London"
                        }
                      ],
                      "iata_code": "LON",
                      "iata_country_code": "GB",
                      "id": "cit_lon_gb",
                      "name": "London"
                    }
                  },
                  "origin_terminal": "B",
                  "passengers": [
                    {
                      "baggages": [
                        {
                          "quantity": 1,
                          "type": "checked"
                        }
                      ],
                      "cabin_class": "economy",
                      "cabin_class_marketing_name": "Economy Basic",
                      "passenger_id": "passenger_0",
                      "seat": {
                        "designator": "14B",
                        "disclosures": [
                          "Do not seat children in exit row seats",
                          "Do not seat passengers with special needs in exit row seats"
                        ],
                        "name": "Exit row seat"
                      }
                    }
                  ]
                }
              ]
            }
          ]
        },
        "updated_at": "2020-01-17T10:12:14.545Z"
      }
    ],
    "order_id": "ord_0000A3bQ8FJIQoEfuC07n6",
    "slices": {
      "add": [
        {
          "cabin_class": "economy",
          "departure_date": "2020-04-24",
          "destination": "LHR",
          "origin": "LHR"
        }
      ],
      "remove": [
        {
          "slice_id": "xxx_00009hthhsUZ8W4LxQgkjo"
        }
      ]
    },
    "updated_at": "2020-01-17T10:12:14.545Z"
  },
  "meta": {
    "limit": 123,
    "before": "<string>",
    "after": "<string>"
  }
}