curl --request POST \
  --url "https://siteadresiniz.example/Files/Controllers/ControllersAll.php?main=Redemptions&container=RedemptionsAddController" \
  --header "X-API-Key: $ZONELY_API_KEY" \
  --form 'code=ALAN_DEGERI' \
  --form 'duration_status=ALAN_DEGERI' \
  --form 'duration=ALAN_DEGERI' \
  --form 'stock_type=ALAN_DEGERI' \
  --form 'stock=ALAN_DEGERI' \
  --form 'reward_type=ALAN_DEGERI' \
  --form 'credit=ALAN_DEGERI' \
  --form 'product_id=ALAN_DEGERI'

const form = new FormData();
form.append('code', '<string>');
form.append('duration_status', '<string>');
form.append('duration', '<string>');
form.append('stock_type', '<string>');
form.append('stock', '<string>');
form.append('reward_type', '<string>');
form.append('credit', '<string>');
form.append('product_id', '<string>');

const options = {method: 'POST', headers: {'X-API-Key': '<api-key>'}};

options.body = form;

fetch('https://siteadresiniz.example/Files/Controllers/ControllersAll.php', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));