curl -X GET \
 /checkout-link-items/{id} \
 --header "Authorization: Bearer <token>"

import requests

url = "https://coreapi.io/checkout-link-items/{id}"

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

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

print(response.text)

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

fetch('https://coreapi.io/checkout-link-items/{id}', 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://coreapi.io/checkout-link-items/{id}",
  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;
}

{
  "type": "product",
  "product": {
    "type": "product",
    "id": "ad8f1c2c-3b1c-4b0a-8b0a-0b0b0b0b0b0b",
    "name": "Basic",
    "description": "For small teams.",
    "invoiceVisibility": "always",
    "customFields": {
      "field1": "value1",
      "field2": "value2"
    }
  },
  "quantity": 1,
  "plan": {
    "id": "ad8f1c2c-3b1c-4b0a-8b0a-0b0b0b0b0b0b",
    "family": {
      "id": "ad8f1c2c-3b1c-4b0a-8b0a-0b0b0b0b0b0b"
    },
    "code": "basic-m2023",
    "originProduct": {
      "type": "product",
      "id": "ad8f1c2c-3b1c-4b0a-8b0a-0b0b0b0b0b0b",
      "name": "Basic",
      "description": "For small teams.",
      "invoiceVisibility": "always",
      "customFields": {
        "field1": "value1",
        "field2": "value2"
      }
    },
    "allowCheckout": true,
    "status": "draft",
    "createdAt": "2023-11-07T05:31:56Z",
    "name": "<string>",
    "description": "<string>"
  },
  "price": {
    "type": "flat_fee",
    "currencyCode": "EUR",
    "price": {
      "amount": 123,
      "createdAt": "2021-01-01T00:00:00+00:00",
      "updatedAt": "2021-01-01T00:00:00+00:00",
      "tenantId": "<string>"
    },
    "id": "ad8f1c2c-3b1c-4b0a-8b0a-0b0b0b0b0b0b",
    "internalName": "Exclusive pricing for partners.",
    "status": "active",
    "salesChannel": {
      "id": "<string>",
      "name": "<string>",
      "brandName": "<string>"
    },
    "applyTrial": true,
    "payInAdvance": true,
    "proRata": true,
    "freeUnits": 1,
    "billingInterval": "1M",
    "showPricePerInterval": "1M",
    "custom": true,
    "charge": "ad8f1c2c-3b1c-4b0a-8b0a-0b0b0b0b0b0b",
    "productSetOption": "ad8f1c2c-3b1c-4b0a-8b0a-0b0b0b0b0b0b",
    "product": "<unknown>",
    "customer": "<unknown>",
    "inUse": true,
    "checkoutLinkIds": [
      "ad8f1c2c-3b1c-4b0a-8b0a-0b0b0b0b0b0b"
    ]
  },
  "periods": [
    {
      "contractPeriod": {},
      "cancellationPeriod": {}
    }
  ]
}