var add_form = document.getElementById("add_form");

function add() {
  fetch(`${config.apiBase}/admin/task/add`,
    {
      method: "POST",
      credentials: "same-origin",
      body: new FormData(add_form)
    })
    .then(response => response.json())
    .then(data => {
      if (data.status !== 200) {
        alert(data.error);
        console.log(data);
      } else {
        alert("task added");
      }
    })
    .catch(error => {
      console.log(error);
    });
}