curl -X POST \
 /subscription-items/{subscriptionItemId}/entitlements \
 --header "Content-Type: application/json" \
 --header "Authorization: Bearer <token>" \
 --data '{
    "feature": "https:\/\/example.com\/",
    "value": "",
    "validFrom": "",
    "validUntil": ""
}'

import requests

url = "https://coreapi.io/subscription-items/{subscriptionItemId}/entitlements"

payload = {
    "feature": "https://example.com/",
    "value": "<string>",
    "validFrom": "2023-11-07T05:31:56Z",
    "validUntil": "2023-11-07T05:31:56Z"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    feature: 'https://example.com/',
    value: '<string>',
    validFrom: '2023-11-07T05:31:56Z',
    validUntil: '2023-11-07T05:31:56Z'
  })
};

fetch('https://coreapi.io/subscription-items/{subscriptionItemId}/entitlements', 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/subscription-items/{subscriptionItemId}/entitlements",
  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([
    'feature' => 'https://example.com/',
    'value' => '<string>',
    'validFrom' => '2023-11-07T05:31:56Z',
    'validUntil' => '2023-11-07T05:31:56Z'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

{
  "id": "<string>",
  "subscriptionItem": {
    "id": "01F9ZQZJZJQZJZJZJZJZJZJZJZ",
    "name": "Fitness M",
    "description": "Everything included",
    "furtherInformation": "Additional agreements: The contract includes a free drink flatrate.",
    "status": "active",
    "subscriptionId": "<string>"
  },
  "feature": {
    "id": "feature-1",
    "name": "number of users",
    "description": "This feature allows you to manage the number of users in your account.",
    "status": "active",
    "type": "switch",
    "config": [
      {
        "value": "<string>",
        "label": "<string>"
      }
    ],
    "unit": "<string>"
  },
  "value": "true",
  "validFrom": "2023-11-07T05:31:56Z",
  "validUntil": "2023-11-07T05:31:56Z",
  "active": true,
  "status": "active"
}