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Initial APIs and core support for Q-Apps
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CalDescent
206
src/main/resources/q-apps/q-apps.js
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206
src/main/resources/q-apps/q-apps.js
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@@ -0,0 +1,206 @@
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function httpGet(url) {
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var request = new XMLHttpRequest();
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request.open("GET", url, false);
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request.send(null);
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return request.responseText;
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}
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function handleResponse(event, response) {
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if (event == null) {
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return;
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}
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// Handle emmpty or missing responses
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if (response == null || response.length == 0) {
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response = "{\"error\": \"Empty response\"}"
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}
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// Parse response
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let responseObj;
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try {
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responseObj = JSON.parse(response);
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} catch (e) {
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// Not all responses will be JSON
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responseObj = response;
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}
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// Respond to app
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if (responseObj.error != null) {
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event.ports[0].postMessage({
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result: null,
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error: responseObj
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});
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}
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else {
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event.ports[0].postMessage({
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result: responseObj,
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error: null
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});
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}
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}
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window.addEventListener("message", (event) => {
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if (event == null || event.data == null || event.data.length == 0) {
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return;
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}
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if (event.data.action == null) {
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// This could be a response from the UI
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handleResponse(event, event.data);
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}
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if (event.data.requestedHandler != null && event.data.requestedHandler === "UI") {
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// This request was destined for the UI, so ignore it
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return;
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}
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console.log("Core received event: " + JSON.stringify(event.data));
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let url;
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let response;
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let data = event.data;
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switch (data.action) {
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case "GET_ACCOUNT_DATA":
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response = httpGet("/apps/account?address=" + data.address);
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break;
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case "GET_ACCOUNT_NAMES":
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response = httpGet("/apps/account/names?address=" + data.address);
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break;
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case "GET_NAME_DATA":
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response = httpGet("/apps/name?name=" + data.name);
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break;
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case "SEARCH_QDN_RESOURCES":
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url = "/apps/resources?";
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if (data.service != null) url = url.concat("&service=" + data.service);
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if (data.identifier != null) url = url.concat("&identifier=" + data.identifier);
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if (data.default != null) url = url.concat("&default=" + data.default);
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if (data.nameListFilter != null) url = url.concat("&nameListFilter=" + data.nameListFilter);
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if (data.includeStatus != null) url = url.concat("&includeStatus=" + new Boolean(data.includeStatus).toString());
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if (data.includeMetadata != null) url = url.concat("&includeMetadata=" + new Boolean(data.includeMetadata).toString());
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if (data.limit != null) url = url.concat("&limit=" + data.limit);
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if (data.offset != null) url = url.concat("&offset=" + data.offset);
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if (data.reverse != null) url = url.concat("&reverse=" + new Boolean(data.reverse).toString());
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response = httpGet(url);
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break;
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case "FETCH_QDN_RESOURCE":
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url = "/apps/resource?";
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if (data.service != null) url = url.concat("&service=" + data.service);
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if (data.name != null) url = url.concat("&name=" + data.name);
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if (data.identifier != null) url = url.concat("&identifier=" + data.identifier);
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if (data.filepath != null) url = url.concat("&filepath=" + data.filepath);
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if (data.rebuild != null) url = url.concat("&rebuild=" + new Boolean(data.rebuild).toString())
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response = httpGet(url);
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break;
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case "GET_QDN_RESOURCE_STATUS":
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url = "/apps/resourcestatus?";
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if (data.service != null) url = url.concat("&service=" + data.service);
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if (data.name != null) url = url.concat("&name=" + data.name);
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if (data.identifier != null) url = url.concat("&identifier=" + data.identifier);
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response = httpGet(url);
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break;
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case "SEARCH_CHAT_MESSAGES":
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url = "/apps/chatmessages?";
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if (data.before != null) url = url.concat("&before=" + data.before);
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if (data.after != null) url = url.concat("&after=" + data.after);
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if (data.txGroupId != null) url = url.concat("&txGroupId=" + data.txGroupId);
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if (data.involving != null) data.involving.forEach((x, i) => url = url.concat("&involving=" + x));
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if (data.reference != null) url = url.concat("&reference=" + data.reference);
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if (data.chatReference != null) url = url.concat("&chatReference=" + data.chatReference);
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if (data.hasChatReference != null) url = url.concat("&hasChatReference=" + new Boolean(data.hasChatReference).toString());
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if (data.limit != null) url = url.concat("&limit=" + data.limit);
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if (data.offset != null) url = url.concat("&offset=" + data.offset);
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if (data.reverse != null) url = url.concat("&reverse=" + new Boolean(data.reverse).toString());
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response = httpGet(url);
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break;
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case "LIST_GROUPS":
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url = "/apps/groups?";
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if (data.limit != null) url = url.concat("&limit=" + data.limit);
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if (data.offset != null) url = url.concat("&offset=" + data.offset);
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if (data.reverse != null) url = url.concat("&reverse=" + new Boolean(data.reverse).toString());
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response = httpGet(url);
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break;
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case "GET_BALANCE":
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url = "/apps/balance?";
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if (data.assetId != null) url = url.concat("&assetId=" + data.assetId);
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if (data.address != null) url = url.concat("&address=" + data.address);
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response = httpGet(url);
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break;
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case "GET_AT":
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url = "/apps/at?";
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if (data.atAddress != null) url = url.concat("&atAddress=" + data.atAddress);
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response = httpGet(url);
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break;
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case "GET_AT_DATA":
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url = "/apps/atdata?";
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if (data.atAddress != null) url = url.concat("&atAddress=" + data.atAddress);
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response = httpGet(url);
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break;
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case "LIST_ATS":
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url = "/apps/ats?";
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if (data.codeHash58 != null) url = url.concat("&codeHash58=" + data.codeHash58);
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if (data.isExecutable != null) url = url.concat("&isExecutable=" + data.isExecutable);
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if (data.limit != null) url = url.concat("&limit=" + data.limit);
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if (data.offset != null) url = url.concat("&offset=" + data.offset);
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if (data.reverse != null) url = url.concat("&reverse=" + new Boolean(data.reverse).toString());
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response = httpGet(url);
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break;
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default:
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// Pass to parent (UI), in case they can fulfil this request
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event.data.requestedHandler = "UI";
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parent.postMessage(event.data, '*', [event.ports[0]]);
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return;
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}
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handleResponse(event, response);
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}, false);
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const awaitTimeout = (timeout, reason) =>
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new Promise((resolve, reject) =>
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setTimeout(
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() => (reason === undefined ? resolve() : reject(reason)),
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timeout
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)
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);
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/**
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* Make a Qortal (Q-Apps) request with no timeout
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*/
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const qortalRequestWithNoTimeout = (request) => new Promise((res, rej) => {
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const channel = new MessageChannel();
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channel.port1.onmessage = ({data}) => {
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channel.port1.close();
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if (data.error) {
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rej(data.error);
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} else {
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res(data.result);
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}
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};
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window.postMessage(request, '*', [channel.port2]);
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});
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/**
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* Make a Qortal (Q-Apps) request with the default timeout (10 seconds)
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*/
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const qortalRequest = (request) =>
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Promise.race([qortalRequestWithNoTimeout(request), awaitTimeout(10000, "The request timed out")]);
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/**
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* Make a Qortal (Q-Apps) request with a custom timeout, specified in milliseconds
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*/
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const qortalRequestWithTimeout = (request, timeout) =>
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Promise.race([qortalRequestWithNoTimeout(request), awaitTimeout(timeout, "The request timed out")]);
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