69 lines
2.1 KiB
JavaScript
69 lines
2.1 KiB
JavaScript
/*
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This file is part of GNU Taler
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(C) 2022 Taler Systems S.A.
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GNU Taler is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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// This file demonstrates how to use the single-file embedded wallet.
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// Load the embedded wallet
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const embedded = require("./dist/taler-wallet-embedded.cjs");
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// Some bookkeeping to correlate requests to responses.
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const requestMap = {};
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let requestCounter = 1;
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// Install __native_onMessage in the global namespace.
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// The __native_onMessage handles messages from the host,
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// i.e. it handles wallet-core requests from the host application (UI etc.).
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embedded.installNativeWalletListener();
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// The host application must the __native_sendMessage callback
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// to allow wallet-core to respond.
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globalThis.__native_sendMessage = (msgStr) => {
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const message = JSON.parse(msgStr);
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if (message.type === "notification") {
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console.log("got notification:", JSON.stringify(message.payload));
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return;
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}
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if (message.type === "response") {
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console.log("got response", JSON.parse(msgStr));
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const msgId = message.id;
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requestMap[msgId](message);
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delete requestMap[msgId];
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return;
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}
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throw Error("not reached");
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};
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async function makeRequest(operation, payload = {}) {
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return new Promise((resolve, reject) => {
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const reqId = `req-${requestCounter++}`;
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requestMap[reqId] = (x) => resolve(x);
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__native_onMessage(
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JSON.stringify({
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operation,
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args: payload,
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id: reqId,
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}),
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);
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});
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}
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async function testMain() {
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const resp = await makeRequest("init");
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console.log("response from init", JSON.stringify(resp));
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}
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testMain();
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