curl --request POST \
  --url https://api.gojinko.com/v1/exchange_shop \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "booking_ref": "JNK-A0AUR2",
  "last_name": "Doe"
}
'

import requests

url = "https://api.gojinko.com/v1/exchange_shop"

payload = {
    "booking_ref": "JNK-A0AUR2",
    "last_name": "Doe"
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({booking_ref: 'JNK-A0AUR2', last_name: 'Doe'})
};

fetch('https://api.gojinko.com/v1/exchange_shop', 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.gojinko.com/v1/exchange_shop",
  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([
    'booking_ref' => 'JNK-A0AUR2',
    'last_name' => 'Doe'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($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.gojinko.com/v1/exchange_shop"

	payload := strings.NewReader("{\n  \"booking_ref\": \"JNK-A0AUR2\",\n  \"last_name\": \"Doe\"\n}")

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

	req.Header.Add("X-API-Key", "<api-key>")
	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.gojinko.com/v1/exchange_shop")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"booking_ref\": \"JNK-A0AUR2\",\n  \"last_name\": \"Doe\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.gojinko.com/v1/exchange_shop")

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

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"booking_ref\": \"JNK-A0AUR2\",\n  \"last_name\": \"Doe\"\n}"

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

{
  "support_level": "AUTO",
  "reason_code": "NOT_EXCHANGEABLE",
  "reason": "This booking cannot be exchanged online. Contact Jinko support.",
  "offers": [
    {
      "offer_id": "exch_offer_3c1a9f",
      "description": "AA100, 23 Sep, JFK-DFW-SJC",
      "estimated_payment_outcome": "additional_payment_due",
      "estimated_amount": {
        "amount": 123,
        "value": 41250,
        "currency": "USD",
        "decimal_places": 2,
        "display": "USD 412.50"
      },
      "non_refundable_amount": {
        "amount": 123,
        "value": 41250,
        "currency": "USD",
        "decimal_places": 2,
        "display": "USD 412.50"
      },
      "validating_carrier": "AA",
      "fare_brand_code": "MAINSL",
      "fare_brand_name": "MAIN SELECT",
      "legs": [
        {
          "stops": 0,
          "duration_minutes": 530,
          "segments": [
            {
              "airline": "AA",
              "operating_carrier": "BA",
              "flight_number": "6957",
              "departure_airport": "MIA",
              "departure_time": "2026-11-24T19:35:00",
              "arrival_airport": "LHR",
              "arrival_time": "2026-11-25T09:05:00",
              "duration_minutes": 530,
              "cabin_name": "Economy",
              "fare_brand_key": "MAINSL",
              "fare_basis_code": "OVAIZNB3",
              "rbd": "O"
            }
          ]
        }
      ],
      "fare_basis_codes": [
        "OVAIZNB3"
      ],
      "booking_classes": [
        "O"
      ],
      "cabin": "Economy"
    }
  ],
  "warnings": [
    "<string>"
  ]
}

{
  "error": {
    "code": "BAD_REQUEST",
    "message": "<string>",
    "doc_url": "<string>",
    "field": "selections[1].quantity"
  }
}

{
  "error": {
    "code": "AUTH_REQUIRED",
    "message": "Invalid or expired API key.",
    "doc_url": "https://docs.gojinko.com/authentication/api-keys"
  }
}

{
  "error": {
    "code": "PAYMENT_REQUIRED",
    "message": "Insufficient balance — this call costs $0.0150 and your organization has $0.0000 available. Top up at https://dashboard.gojinko.com/developers/billing/topup",
    "doc_url": "https://docs.gojinko.com/concepts/errors"
  }
}

{
  "error": {
    "code": "NOT_FOUND",
    "message": "Resource not found.",
    "doc_url": "https://docs.gojinko.com/concepts/errors"
  }
}

{
  "error": {
    "code": "BAD_REQUEST",
    "message": "<string>",
    "doc_url": "<string>",
    "field": "selections[1].quantity"
  }
}

{
  "error": {
    "code": "GONE",
    "message": "The resource no longer exists.",
    "doc_url": "https://docs.gojinko.com/concepts/errors"
  }
}

{
  "error": {
    "code": "BAD_REQUEST",
    "message": "A required field is missing or invalid.",
    "doc_url": "https://docs.gojinko.com/concepts/errors"
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "Too many requests. Retry after the Retry-After delay.",
    "doc_url": "https://docs.gojinko.com/concepts/errors"
  }
}

{
  "error": {
    "code": "UPSTREAM_REJECTED",
    "message": "The request was declined for this offer. Try another offer.",
    "doc_url": "https://docs.gojinko.com/concepts/errors"
  }
}

{
  "error": {
    "code": "UPSTREAM_UNAVAILABLE",
    "message": "The service is temporarily unavailable. Retry after the Retry-After delay.",
    "doc_url": "https://docs.gojinko.com/concepts/errors"
  }
}

{
  "error": {
    "code": "UPSTREAM_TIMEOUT",
    "message": "The request timed out before a result was available. Retry the request.",
    "doc_url": "https://docs.gojinko.com/concepts/errors"
  }
}