curl --request POST \
  --url "https://siteadresiniz.example/Files/Controllers/ControllersAll.php?main=Seasons&container=SeasonsAddController" \
  --header "X-API-Key: $ZONELY_API_KEY" \
  --form 'title=ALAN_DEGERI' \
  --form 'connection_type=ALAN_DEGERI' \
  --form 'host=ALAN_DEGERI' \
  --form 'port=ALAN_DEGERI' \
  --form 'database=ALAN_DEGERI' \
  --form 'username=ALAN_DEGERI' \
  --form 'password=ALAN_DEGERI' \
  --form 'table=ALAN_DEGERI' \
  --form 'username_column=ALAN_DEGERI' \
  --form 'score_column=ALAN_DEGERI' \
  --form 'season_mode=ALAN_DEGERI' \
  --form 'season_start=ALAN_DEGERI' \
  --form 'season_end=ALAN_DEGERI' \
  --form 'season_active=ALAN_DEGERI'

const form = new FormData();
form.append('title', '<string>');
form.append('connection_type', '<string>');
form.append('host', '<string>');
form.append('port', '<string>');
form.append('database', '<string>');
form.append('username', '<string>');
form.append('password', '<string>');
form.append('table', '<string>');
form.append('username_column', '<string>');
form.append('score_column', '<string>');
form.append('season_mode', '<string>');
form.append('season_start', '<string>');
form.append('season_end', '<string>');
form.append('season_active', '<string>');
form.append('reward', '<string>');
form.append('column_titles', '<string>');
form.append('column_names', '<string>');
form.append('servers_json', '<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));