curl --request POST \
  --url https://api.loopreturns.com/api/v1/orders/return-eligibility \
  --header 'Content-Type: application/json' \
  --header 'X-Authorization: <api-key>' \
  --data '
{
  "order_name": "#1001"
}
'

import requests

url = "https://api.loopreturns.com/api/v1/orders/return-eligibility"

payload = { "order_name": "#1001" }
headers = {
    "X-Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-Authorization': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({order_name: '#1001'})
};

fetch('https://api.loopreturns.com/api/v1/orders/return-eligibility', 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.loopreturns.com/api/v1/orders/return-eligibility",
  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([
    'order_name' => '#1001'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Authorization: <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.loopreturns.com/api/v1/orders/return-eligibility"

	payload := strings.NewReader("{\n  \"order_name\": \"#1001\"\n}")

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

	req.Header.Add("X-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://api.loopreturns.com/api/v1/orders/return-eligibility")
  .header("X-Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"order_name\": \"#1001\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.loopreturns.com/api/v1/orders/return-eligibility")

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

request = Net::HTTP::Post.new(url)
request["X-Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"order_name\": \"#1001\"\n}"

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

{
  "return_eligibility": {
    "order_id": 390519090,
    "as_of": "2026-09-30T16:00:00Z",
    "advisory": true,
    "items": [
      {
        "id": 390519093,
        "external_id": "44580305076398",
        "eligible": true,
        "expiration": "2026-10-23",
        "ineligibility_code": null,
        "return_reason_group_id": 12
      },
      {
        "id": 390519094,
        "external_id": "44580305076399",
        "eligible": false,
        "expiration": "2026-09-15",
        "ineligibility_code": "return-window-closed",
        "return_reason_group_id": null
      },
      {
        "id": 390519095,
        "external_id": null,
        "eligible": false,
        "expiration": null,
        "ineligibility_code": "final-sale",
        "return_reason_group_id": null
      }
    ]
  }
}

{
  "errors": "Unauthorized."
}

{
  "message": "Resource not found."
}

{
  "errors": [
    {
      "code": "order-has-been-cancelled",
      "message": "The order has been cancelled."
    }
  ]
}

{
  "errors": [
    {
      "code": "returns-unavailable-for-order",
      "message": "Returns are unavailable for this order."
    }
  ]
}