88 lines
2.1 KiB
JavaScript
88 lines
2.1 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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let error = response.error || (response.result && response.result.error);
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if (error) {
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if (errorCallback) {
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errorCallback(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: error.code,
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message: error.message || error,
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data: 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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