export function getJson(url) {
  return fetch(url, { headers: getAuthHeaders() }).then(function(r) { return r.json(); });
}

export function sendJson(url, method, payload) {
  return fetch(url, {
    method: method,
    headers: getAuthHeaders(),
    body: JSON.stringify(payload || {})
  }).then(function(r) { return r.json(); });
}

export function sendJsonBlob(url, method, payload) {
  return fetch(url, {
    method: method,
    headers: getAuthHeaders(),
    body: JSON.stringify(payload || {})
  }).then(function(r) {
    if (!r.ok) return r.json().then(function(e) { throw new Error(e.error || 'Request failed'); });
    return r.blob();
  });
}

export function deleteJson(url) {
  return fetch(url, { method: 'DELETE', headers: getAuthHeaders() }).then(function(r) { return r.json(); });
}