88 lines
1.8 KiB
JavaScript
88 lines
1.8 KiB
JavaScript
const jsonrpc = {};
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jsonrpc.call = function(
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connectionString,
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method,
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params,
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callback,
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errorCallback,
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connectFailedCallback,
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timeout
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) {
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var xhr = new XMLHttpRequest();
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if (typeof connectFailedCallback !== 'undefined') {
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if (timeout) {
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xhr.timeout = timeout;
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}
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xhr.addEventListener('error', function(e) {
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connectFailedCallback(e);
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});
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xhr.addEventListener('timeout', function() {
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connectFailedCallback(
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new Error(__('XMLHttpRequest connection timed out'))
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);
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});
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}
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xhr.addEventListener('load', function() {
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var response = JSON.parse(xhr.responseText);
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if (response.error) {
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if (errorCallback) {
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errorCallback(response.error);
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} else {
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var errorEvent = new CustomEvent('unhandledError', {
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detail: {
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connectionString: connectionString,
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method: method,
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params: params,
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code: response.error.code,
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message: response.error.message,
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data: response.error.data
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}
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});
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document.dispatchEvent(errorEvent);
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}
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} else if (callback) {
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callback(response.result);
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}
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});
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if (connectFailedCallback) {
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xhr.addEventListener('error', function(event) {
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connectFailedCallback(event);
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});
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} else {
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xhr.addEventListener('error', function(event) {
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var errorEvent = new CustomEvent('unhandledError', {
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detail: {
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connectionString: connectionString,
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method: method,
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params: params,
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code: xhr.status,
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message: __('Connection to API server failed')
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}
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});
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document.dispatchEvent(errorEvent);
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});
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}
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const counter = parseInt(sessionStorage.getItem('JSONRPCCounter') || 0);
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xhr.open('POST', connectionString, true);
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xhr.send(
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JSON.stringify({
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jsonrpc: '2.0',
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method: method,
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params: params,
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id: counter
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})
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);
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sessionStorage.setItem('JSONRPCCounter', counter + 1);
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return xhr;
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};
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export default jsonrpc;
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