39 lines
1.0 KiB
JavaScript
39 lines
1.0 KiB
JavaScript
function HttpRequest(method, url, payload, callback, context) {
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if (!window.XMLHttpRequest) {
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return;
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}
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var request = new XMLHttpRequest();
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var async = typeof callback !== 'undefined';
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if (async) {
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request.onreadystatechange = function() {
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if (request.readyState !== 4) {
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return;
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}
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if (request.responseText !== null && request.status === 200) {
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var obj = JSON.parse(request.responseText);
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if (obj.error) {
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alert(obj.error);
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return;
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}
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else {
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callback(obj, context);
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}
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}
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};
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}
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if (method === 'get') {
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request.open('GET', url, async);
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request.send(null);
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} else {
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request.open('POST', url, async);
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request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
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request.send(payload);
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}
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return request;
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};
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