curl --request POST \
  --url https://api-sandbox.endl.io/giftcards/orders \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --header 'X-Api-Key-Id: <api-key>' \
  --data '
{
  "partner_order_ref": "ORD-10294",
  "amount_minor": "100000",
  "currency": "INR",
  "payment_ref": "pi_3QXk2s",
  "items": [
    {
      "canonical_sku": "BIGBASKET--IN--INR",
      "denomination_minor": "50000",
      "qty": 2
    }
  ]
}
'

import requests

url = "https://api-sandbox.endl.io/giftcards/orders"

payload = {
    "partner_order_ref": "ORD-10294",
    "amount_minor": "100000",
    "currency": "INR",
    "payment_ref": "pi_3QXk2s",
    "items": [
        {
            "canonical_sku": "BIGBASKET--IN--INR",
            "denomination_minor": "50000",
            "qty": 2
        }
    ]
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "X-Api-Key-Id": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    'X-Api-Key-Id': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    partner_order_ref: 'ORD-10294',
    amount_minor: '100000',
    currency: 'INR',
    payment_ref: 'pi_3QXk2s',
    items: [{canonical_sku: 'BIGBASKET--IN--INR', denomination_minor: '50000', qty: 2}]
  })
};

fetch('https://api-sandbox.endl.io/giftcards/orders', 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-sandbox.endl.io/giftcards/orders",
  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([
    'partner_order_ref' => 'ORD-10294',
    'amount_minor' => '100000',
    'currency' => 'INR',
    'payment_ref' => 'pi_3QXk2s',
    'items' => [
        [
                'canonical_sku' => 'BIGBASKET--IN--INR',
                'denomination_minor' => '50000',
                'qty' => 2
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>",
    "X-Api-Key-Id: <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-sandbox.endl.io/giftcards/orders"

	payload := strings.NewReader("{\n  \"partner_order_ref\": \"ORD-10294\",\n  \"amount_minor\": \"100000\",\n  \"currency\": \"INR\",\n  \"payment_ref\": \"pi_3QXk2s\",\n  \"items\": [\n    {\n      \"canonical_sku\": \"BIGBASKET--IN--INR\",\n      \"denomination_minor\": \"50000\",\n      \"qty\": 2\n    }\n  ]\n}")

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

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	req.Header.Add("X-Api-Key-Id", "<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-sandbox.endl.io/giftcards/orders")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("X-Api-Key-Id", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"partner_order_ref\": \"ORD-10294\",\n  \"amount_minor\": \"100000\",\n  \"currency\": \"INR\",\n  \"payment_ref\": \"pi_3QXk2s\",\n  \"items\": [\n    {\n      \"canonical_sku\": \"BIGBASKET--IN--INR\",\n      \"denomination_minor\": \"50000\",\n      \"qty\": 2\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-sandbox.endl.io/giftcards/orders")

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

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["X-Api-Key-Id"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"partner_order_ref\": \"ORD-10294\",\n  \"amount_minor\": \"100000\",\n  \"currency\": \"INR\",\n  \"payment_ref\": \"pi_3QXk2s\",\n  \"items\": [\n    {\n      \"canonical_sku\": \"BIGBASKET--IN--INR\",\n      \"denomination_minor\": \"50000\",\n      \"qty\": 2\n    }\n  ]\n}"

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

{
  "order_id": "9f1c8a44-2b7e-4d31-9a6f-5c0e7b2d81a3",
  "state": "PENDING"
}

{
  "code": "VALIDATION_ERROR",
  "message": "items must be a non-empty array"
}

{
  "code": "AUTH_INVALID_KEY",
  "message": "credential could not be verified"
}

{
  "code": "SCOPE_FORBIDDEN",
  "message": "key lacks the required scope"
}

{
  "code": "IDEMPOTENCY_KEY_REUSED",
  "message": "idempotency key was used with a different body"
}

{
  "code": "VALIDATION_ERROR",
  "message": "request body too large"
}

{
  "code": "RATE_LIMITED",
  "message": "rate limit exceeded"
}

{
  "code": "INTERNAL_ERROR",
  "message": "unexpected error"
}