curl --request GET \
  --url https://staging.api.commercengine.io/api/v1/{store_id}/admin/pos/shipping/shipments/{reference_number}/invoice \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://staging.api.commercengine.io/api/v1/{store_id}/admin/pos/shipping/shipments/{reference_number}/invoice"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://staging.api.commercengine.io/api/v1/{store_id}/admin/pos/shipping/shipments/{reference_number}/invoice', 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://staging.api.commercengine.io/api/v1/{store_id}/admin/pos/shipping/shipments/{reference_number}/invoice",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://staging.api.commercengine.io/api/v1/{store_id}/admin/pos/shipping/shipments/{reference_number}/invoice"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://staging.api.commercengine.io/api/v1/{store_id}/admin/pos/shipping/shipments/{reference_number}/invoice")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://staging.api.commercengine.io/api/v1/{store_id}/admin/pos/shipping/shipments/{reference_number}/invoice")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

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

{
  "message": "<string>",
  "success": true,
  "content": {
    "invoice": {
      "invoice_number": "<string>",
      "invoice_date": "2023-12-25",
      "irn_number": "<string>",
      "ack_number": "<string>",
      "ack_date": "2023-11-07T05:31:56Z",
      "signed_qr_code": "<string>",
      "gatepass_barcode": "<string>",
      "seller_details": {
        "name": "<string>",
        "warehouse_type": "retail-store",
        "city": "<string>",
        "address_line1": "<string>",
        "pincode": "<string>",
        "state": "<string>",
        "country": "<string>",
        "contact_phone": 123,
        "contact_email": "<string>",
        "can_receive_stock": true,
        "can_ship_parcel": true,
        "can_collect": true,
        "is_checkout_point": true,
        "accepts_returns": true,
        "id": "<string>",
        "active": true,
        "gstin": "<string>",
        "address_line2": "<string>",
        "landmark": "<string>",
        "country_code": "+91",
        "is_default": true,
        "image_url": "<string>",
        "seller_warehouse_id": "<string>",
        "opening_hours": {
          "monday": {
            "opening_time": "<string>",
            "closing_time": "<string>"
          },
          "tuesday": {
            "opening_time": "<string>",
            "closing_time": "<string>"
          },
          "wednesday": {
            "opening_time": "<string>",
            "closing_time": "<string>"
          },
          "thursday": {
            "opening_time": "<string>",
            "closing_time": "<string>"
          },
          "friday": {
            "opening_time": "<string>",
            "closing_time": "<string>"
          },
          "saturday": {
            "opening_time": "<string>",
            "closing_time": "<string>"
          },
          "sunday": {
            "opening_time": "<string>",
            "closing_time": "<string>"
          }
        },
        "channels": [
          {
            "id": "<string>",
            "name": "<string>",
            "kind": "storefront",
            "active": true
          }
        ]
      },
      "billing_address": {
        "first_name": "<string>",
        "phone": "<string>",
        "email": "<string>",
        "address_line1": "<string>",
        "pincode": "<string>",
        "city": "<string>",
        "state": "<string>",
        "country": "India",
        "id": "<string>",
        "last_name": "<string>",
        "country_code": "<string>",
        "address_line2": "<string>",
        "landmark": "<string>",
        "gstin": "<string>",
        "business_name": "<string>",
        "is_phone_verified": true,
        "is_email_verified": true,
        "is_default_shipping": true,
        "is_default_billing": true
      },
      "shipping_address": {
        "first_name": "<string>",
        "phone": "<string>",
        "email": "<string>",
        "address_line1": "<string>",
        "pincode": "<string>",
        "city": "<string>",
        "state": "<string>",
        "country": "India",
        "id": "<string>",
        "last_name": "<string>",
        "country_code": "<string>",
        "address_line2": "<string>",
        "landmark": "<string>",
        "gstin": "<string>",
        "business_name": "<string>",
        "is_phone_verified": true,
        "is_email_verified": true,
        "is_default_shipping": true,
        "is_default_billing": true
      },
      "subtotal": 123,
      "shipping_amount": 123,
      "coupon_code": "<string>",
      "coupon_discount_percent": 123,
      "coupon_discount_amount": 123,
      "total_tax": 123,
      "grand_total": 123,
      "tax_summary": [
        {
          "tax_rate": 123,
          "taxable_value": 123,
          "igst": 123,
          "cgst": 123,
          "sgst": 123
        }
      ],
      "created_at": "2023-11-07T05:31:56Z",
      "modified_at": "2023-11-07T05:31:56Z",
      "items": [
        {
          "sku": "<string>",
          "product_name": "<string>",
          "product_image_url": "<string>",
          "listing_price": 123,
          "selling_price": 123,
          "qty": 123,
          "free_qty": 123,
          "tax_type": "<string>",
          "tax_rate": 123,
          "hsncode": "<string>",
          "batch_number": "<string>",
          "expiry": "<string>",
          "amount": 123
        }
      ]
    }
  }
}