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92 lines
2.6 KiB
92 lines
2.6 KiB
2 years ago
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var isFn = require('./isFn');
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var noop = require('./noop');
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var defaults = require('./defaults');
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var isObj = require('./isObj');
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var query = require('./query');
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exports = function(options) {
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defaults(options, exports.setting);
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var type = options.type;
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var url = options.url;
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var data = options.data;
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var dataType = options.dataType;
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var success = options.success;
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var error = options.error;
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var timeout = options.timeout;
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var complete = options.complete;
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var xhr = options.xhr();
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var abortTimeout;
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xhr.onreadystatechange = function() {
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if (xhr.readyState !== 4) return;
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clearTimeout(abortTimeout);
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var result;
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var status = xhr.status;
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if ((status >= 200 && status < 300) || status === 304) {
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result = xhr.responseText;
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if (dataType === 'xml') result = xhr.responseXML;
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try {
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if (dataType === 'json') result = JSON.parse(result);
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} catch (e) {}
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success(result, xhr);
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} else {
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error(xhr);
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}
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complete(xhr);
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};
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if (type === 'GET') {
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data = query.stringify(data);
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if (data) url += url.indexOf('?') > -1 ? '&' + data : '?' + data;
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} else if (options.contentType === 'application/x-www-form-urlencoded') {
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if (isObj(data)) data = query.stringify(data);
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} else if (options.contentType === 'application/json') {
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if (isObj(data)) data = JSON.stringify(data);
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}
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xhr.open(type, url, true);
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xhr.setRequestHeader('Content-Type', options.contentType);
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if (timeout > 0) {
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abortTimeout = setTimeout(function() {
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xhr.onreadystatechange = noop;
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xhr.abort();
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error(xhr, 'timeout');
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complete(xhr);
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}, timeout);
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}
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xhr.send(type === 'GET' ? null : data);
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return xhr;
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};
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exports.setting = {
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type: 'GET',
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success: noop,
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error: noop,
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complete: noop,
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dataType: 'json',
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contentType: 'application/x-www-form-urlencoded',
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data: {},
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xhr: function() {
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return new XMLHttpRequest();
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},
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timeout: 0
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};
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exports.get = function() {
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return exports(parseArgs.apply(null, arguments));
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};
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exports.post = function() {
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var options = parseArgs.apply(null, arguments);
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options.type = 'POST';
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return exports(options);
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};
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function parseArgs(url, data, success, dataType) {
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if (isFn(data)) {
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dataType = success;
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success = data;
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data = {};
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}
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return {
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url: url,
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data: data,
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success: success,
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dataType: dataType
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};
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}
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module.exports = exports;
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