curl --request POST \
  --url https://api-test.drop-hub.com/v2/external/shipments/{shipmentId}/cancel \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "reasonCode": "CUSTOMER_REQUESTED"
}
'

import requests

url = "https://api-test.drop-hub.com/v2/external/shipments/{shipmentId}/cancel"

payload = { "reasonCode": "CUSTOMER_REQUESTED" }
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({reasonCode: 'CUSTOMER_REQUESTED'})
};

fetch('https://api-test.drop-hub.com/v2/external/shipments/{shipmentId}/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://api-test.drop-hub.com/v2/external/shipments/{shipmentId}/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([
    'reasonCode' => 'CUSTOMER_REQUESTED'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-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-test.drop-hub.com/v2/external/shipments/{shipmentId}/cancel"

	payload := strings.NewReader("{\n  \"reasonCode\": \"CUSTOMER_REQUESTED\"\n}")

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

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	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-test.drop-hub.com/v2/external/shipments/{shipmentId}/cancel")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"reasonCode\": \"CUSTOMER_REQUESTED\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-test.drop-hub.com/v2/external/shipments/{shipmentId}/cancel")

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

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"reasonCode\": \"CUSTOMER_REQUESTED\"\n}"

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

{
  "shipmentId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "shipmentNumber": "<string>",
  "externalReference": "<string>",
  "state": "PENDING_APPROVAL",
  "recipientName": "<string>",
  "maskedRecipientPhone": "<string>",
  "totalWeightKilograms": 123,
  "declaredValue": 123,
  "codAmount": 123,
  "currency": "<string>",
  "paymentMethod": "PREPAID",
  "pickupWindowStart": "2023-11-07T05:31:56Z",
  "pickupWindowEnd": "2023-11-07T05:31:56Z",
  "createdAt": "2023-11-07T05:31:56Z",
  "approvedAt": "2023-11-07T05:31:56Z",
  "version": 1,
  "destination": {
    "addressLine": "<string>",
    "cityCode": "<string>",
    "latitude": 0,
    "longitude": 0
  },
  "pickup": {
    "addressLine": "<string>",
    "cityCode": "<string>",
    "latitude": 0,
    "longitude": 0
  },
  "items": [
    {
      "description": "<string>",
      "quantity": 5000,
      "weightKilograms": 123,
      "lengthCentimetres": 1,
      "widthCentimetres": 1,
      "heightCentimetres": 1
    }
  ],
  "requirements": [
    "<string>"
  ],
  "timelineMedia": [
    {
      "mediaAssetId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "purpose": "SHIPMENT_CREATION_EVIDENCE",
      "sortOrder": 49
    }
  ]
}

{
  "type": "https://api.drop-hub.com/problems/authentication-required",
  "title": "Authentication required",
  "status": 401,
  "detail": "Authentication is required for this resource.",
  "instance": "/v2/external/shipments/018f2d8a-1f00-7000-8000-000000000206",
  "code": "AUTHENTICATION_REQUIRED",
  "timestamp": "2026-08-22T18:30:00Z",
  "correlationId": "018f2d8a-1f00-7000-8000-000000000207",
  "requestId": "018f2d8a-1f00-7000-8000-000000000208"
}

{
  "type": "https://api.drop-hub.com/problems/access-denied",
  "title": "Access denied",
  "status": 403,
  "detail": "Access to this resource is denied.",
  "instance": "/v2/external/shipments/018f2d8a-1f00-7000-8000-000000000206",
  "code": "ACCESS_DENIED",
  "timestamp": "2026-08-22T18:30:00Z",
  "correlationId": "018f2d8a-1f00-7000-8000-000000000207",
  "requestId": "018f2d8a-1f00-7000-8000-000000000208"
}

{
  "type": "https://api.drop-hub.com/problems/access-denied",
  "title": "Access denied",
  "status": 403,
  "detail": "Access to this resource is denied.",
  "instance": "/v2/external/shipments/018f2d8a-1f00-7000-8000-000000000206",
  "code": "ACCESS_DENIED",
  "timestamp": "2026-08-22T18:30:00Z",
  "correlationId": "018f2d8a-1f00-7000-8000-000000000207",
  "requestId": "018f2d8a-1f00-7000-8000-000000000208"
}

{
  "type": "https://api.drop-hub.com/problems/access-denied",
  "title": "Access denied",
  "status": 403,
  "detail": "Access to this resource is denied.",
  "instance": "/v2/external/shipments/018f2d8a-1f00-7000-8000-000000000206",
  "code": "ACCESS_DENIED",
  "timestamp": "2026-08-22T18:30:00Z",
  "correlationId": "018f2d8a-1f00-7000-8000-000000000207",
  "requestId": "018f2d8a-1f00-7000-8000-000000000208"
}

{
  "type": "https://api.drop-hub.com/problems/access-denied",
  "title": "Access denied",
  "status": 403,
  "detail": "Access to this resource is denied.",
  "instance": "/v2/external/shipments/018f2d8a-1f00-7000-8000-000000000206",
  "code": "ACCESS_DENIED",
  "timestamp": "2026-08-22T18:30:00Z",
  "correlationId": "018f2d8a-1f00-7000-8000-000000000207",
  "requestId": "018f2d8a-1f00-7000-8000-000000000208"
}