curl --request POST \
  --url https://api.headlesscommerce.io/v1/storefront/carts/{id}/merge \
  --header 'Authorization: Bearer <token>' \
  --header 'X-Customer-Token: <api-key>'

import requests

url = "https://api.headlesscommerce.io/v1/storefront/carts/{id}/merge"

headers = {
    "Authorization": "Bearer <token>",
    "X-Customer-Token": "<api-key>"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'X-Customer-Token': '<api-key>'}
};

fetch('https://api.headlesscommerce.io/v1/storefront/carts/{id}/merge', 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.headlesscommerce.io/v1/storefront/carts/{id}/merge",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "X-Customer-Token: <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"
	"net/http"
	"io"
)

func main() {

	url := "https://api.headlesscommerce.io/v1/storefront/carts/{id}/merge"

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("X-Customer-Token", "<api-key>")

	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.headlesscommerce.io/v1/storefront/carts/{id}/merge")
  .header("Authorization", "Bearer <token>")
  .header("X-Customer-Token", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.headlesscommerce.io/v1/storefront/carts/{id}/merge")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["X-Customer-Token"] = '<api-key>'

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

{
  "id": "<string>",
  "status": "active",
  "session_id": "<string>",
  "customer_id": "<string>",
  "items": [
    {
      "id": "<string>",
      "variant_id": "<string>",
      "product_id": "<string>",
      "product_name": "<string>",
      "variant_name": "<string>",
      "sku": "<string>",
      "image_url": "<string>",
      "quantity": 123,
      "unit_price": {
        "amount": 123,
        "currency": "<string>"
      },
      "line_discount": {
        "amount": 123,
        "currency": "<string>"
      },
      "line_total": {
        "amount": 123,
        "currency": "<string>"
      },
      "metadata": {}
    }
  ],
  "shipping_address": {
    "name": "<string>",
    "company": "<string>",
    "line1": "<string>",
    "line2": "<string>",
    "city": "<string>",
    "state": "<string>",
    "postal_code": "<string>",
    "country": "<string>",
    "phone": "<string>"
  },
  "billing_address": {
    "name": "<string>",
    "company": "<string>",
    "line1": "<string>",
    "line2": "<string>",
    "city": "<string>",
    "state": "<string>",
    "postal_code": "<string>",
    "country": "<string>",
    "phone": "<string>"
  },
  "shipping_method_id": "<string>",
  "discount_codes": [
    "<string>"
  ],
  "summary": {
    "subtotal": {
      "amount": 123,
      "currency": "<string>"
    },
    "discount_total": {
      "amount": 123,
      "currency": "<string>"
    },
    "shipping_total": {
      "amount": 123,
      "currency": "<string>"
    },
    "tax_total": {
      "amount": 123,
      "currency": "<string>"
    },
    "total": {
      "amount": 123,
      "currency": "<string>"
    },
    "item_count": 123,
    "total_quantity": 123
  },
  "applied_discounts": [
    {
      "discount_id": "<string>",
      "code": "<string>",
      "name": "<string>",
      "value_type": "fixed",
      "value": 123,
      "saved": {
        "amount": 123,
        "currency": "<string>"
      }
    }
  ],
  "metadata": {},
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}

{
  "error": {
    "type": "<string>",
    "code": "<string>",
    "message": "<string>",
    "details": {}
  }
}