curl --request POST \
  --url https://1a557de0-701c-477d-bedd-433520441dae.mock.pstmn.io/api/hawb \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "hawbNumber": "H001",
  "mawbNumber": "15712345678",
  "pieces": 5,
  "weight": 250,
  "shipper": {
    "name": "Example Corp",
    "address": "123 Main St, City, Country",
    "contact": "contact@example.com"
  },
  "consignee": {
    "name": "Example Corp",
    "address": "123 Main St, City, Country",
    "contact": "contact@example.com"
  }
}
'

import requests

url = "https://1a557de0-701c-477d-bedd-433520441dae.mock.pstmn.io/api/hawb"

payload = {
    "hawbNumber": "H001",
    "mawbNumber": "15712345678",
    "pieces": 5,
    "weight": 250,
    "shipper": {
        "name": "Example Corp",
        "address": "123 Main St, City, Country",
        "contact": "contact@example.com"
    },
    "consignee": {
        "name": "Example Corp",
        "address": "123 Main St, City, Country",
        "contact": "contact@example.com"
    }
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    hawbNumber: 'H001',
    mawbNumber: '15712345678',
    pieces: 5,
    weight: 250,
    shipper: {
      name: 'Example Corp',
      address: '123 Main St, City, Country',
      contact: 'contact@example.com'
    },
    consignee: {
      name: 'Example Corp',
      address: '123 Main St, City, Country',
      contact: 'contact@example.com'
    }
  })
};

fetch('https://1a557de0-701c-477d-bedd-433520441dae.mock.pstmn.io/api/hawb', 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://1a557de0-701c-477d-bedd-433520441dae.mock.pstmn.io/api/hawb",
  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([
    'hawbNumber' => 'H001',
    'mawbNumber' => '15712345678',
    'pieces' => 5,
    'weight' => 250,
    'shipper' => [
        'name' => 'Example Corp',
        'address' => '123 Main St, City, Country',
        'contact' => 'contact@example.com'
    ],
    'consignee' => [
        'name' => 'Example Corp',
        'address' => '123 Main St, City, Country',
        'contact' => 'contact@example.com'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "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://1a557de0-701c-477d-bedd-433520441dae.mock.pstmn.io/api/hawb"

	payload := strings.NewReader("{\n  \"hawbNumber\": \"H001\",\n  \"mawbNumber\": \"15712345678\",\n  \"pieces\": 5,\n  \"weight\": 250,\n  \"shipper\": {\n    \"name\": \"Example Corp\",\n    \"address\": \"123 Main St, City, Country\",\n    \"contact\": \"contact@example.com\"\n  },\n  \"consignee\": {\n    \"name\": \"Example Corp\",\n    \"address\": \"123 Main St, City, Country\",\n    \"contact\": \"contact@example.com\"\n  }\n}")

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

	req.Header.Add("Authorization", "<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://1a557de0-701c-477d-bedd-433520441dae.mock.pstmn.io/api/hawb")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"hawbNumber\": \"H001\",\n  \"mawbNumber\": \"15712345678\",\n  \"pieces\": 5,\n  \"weight\": 250,\n  \"shipper\": {\n    \"name\": \"Example Corp\",\n    \"address\": \"123 Main St, City, Country\",\n    \"contact\": \"contact@example.com\"\n  },\n  \"consignee\": {\n    \"name\": \"Example Corp\",\n    \"address\": \"123 Main St, City, Country\",\n    \"contact\": \"contact@example.com\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://1a557de0-701c-477d-bedd-433520441dae.mock.pstmn.io/api/hawb")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"hawbNumber\": \"H001\",\n  \"mawbNumber\": \"15712345678\",\n  \"pieces\": 5,\n  \"weight\": 250,\n  \"shipper\": {\n    \"name\": \"Example Corp\",\n    \"address\": \"123 Main St, City, Country\",\n    \"contact\": \"contact@example.com\"\n  },\n  \"consignee\": {\n    \"name\": \"Example Corp\",\n    \"address\": \"123 Main St, City, Country\",\n    \"contact\": \"contact@example.com\"\n  }\n}"

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

{
  "hawbNumber": "H001",
  "mawbNumber": "15712345678",
  "status": "created"
}