vivo-ui/lib/tools/ajax/index.js

vivo ui component lib for vue

import _Object$keys from 'babel-runtime/core-js/object/keys';
import _Object$assign from 'babel-runtime/core-js/object/assign';

function formatParams(params) {
  params = _Object$assign({
    __timestamp__: Date.now()
  }, params);

  return _Object$keys(params).map(function (value) {
    return value + '=' + params[value];
  }).join('&');
}

function getStatus(code) {
  switch (code) {
    case 200:
      return 'success';
    case 304:
      return 'notmodified';
    default:
      return 'error';
  }
}

function index (options) {
  var xhr = new window.XMLHttpRequest();
  var params = formatParams(options.params);
  var async = options.async !== undefined ? options.async : true;
  var type = (options.type || 'get').toLowerCase();
  var completed = void 0;

  xhr.timeout = options.timeout || 0;
  xhr.responseType = options.dataType || 'json';
  xhr.onreadystatechange = function () {
    if (xhr.readyState === 4) {
      var status = getStatus(xhr.status);

      completed = true;
      if (status === 'success') {
        options.success && options.success(xhr.response, status, xhr);
      } else {
        options.error && options.error(xhr, status, xhr.statusText);
      }
      options.complete && options.complete(status, xhr);
    }
  };
  xhr.ontimeout = function () {
    options.error && options.error(xhr, 'timeout', xhr.statusText);
    options.complete && options.complete('timeout', xhr);
  };
  xhr.abort = function () {
    if (!completed) {
      xhr.abort();
      options.error && options.error(xhr, 'abort', xhr.statusText);
      options.complete && options.complete('abort', xhr);
    }
  };

  if (type === 'get') {
    xhr.open(type, options.url + ('' + (options.url.indexOf('?') === -1 ? '?' : '&')) + params, async);
    xhr.send(null);
  } else {
    xhr.open(type, options.url, async);
    xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    xhr.send(params);
  }
}

export default index;