taler-wallet-embedded: tweak init response, rollup bundling, add test

1 files changed, 68 insertions, 0 deletions

diff --git a/packages/taler-wallet-embedded/test-embedded.cjs b/packages/taler-wallet-embedded/test-embedded.cjs
new file mode 100644
index 000000000..bc5bf9086
--- /dev/null
+++ b/packages/taler-wallet-embedded/test-embedded.cjs
@@ -0,0 +1,68 @@
+/*
+ This file is part of GNU Taler
+ (C) 2022 Taler Systems S.A.
+
+ GNU Taler is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+// This file demonstrates how to use the single-file embedded wallet.
+
+// Load the embedded wallet
+const embedded = require("./dist/taler-wallet-embedded.cjs");
+
+// Some bookkeeping to correlate requests to responses.
+const requestMap = {};
+let requestCounter = 1;
+
+// Install __native_onMessage in the global namespace.
+// The __native_onMessage handles messages from the host,
+// i.e. it handles wallet-core requests from the host application (UI etc.).
+embedded.installNativeWalletListener();
+
+// The host application must the __native_sendMessage callback
+// to allow wallet-core to respond.
+globalThis.__native_sendMessage = (msgStr) => {
+  const message = JSON.parse(msgStr);
+  if (message.type === "notification") {
+    console.log("got notification:", JSON.stringify(message.payload));
+    return;
+  }
+  if (message.type === "response") {
+    console.log("got response", JSON.parse(msgStr));
+    const msgId = message.id;
+    requestMap[msgId](message);
+    delete requestMap[msgId];
+    return;
+  }
+  throw Error("not reached");
+};
+
+async function makeRequest(operation, payload = {}) {
+  return new Promise((resolve, reject) => {
+    const reqId = `req-${requestCounter++}`;
+    requestMap[reqId] = (x) => resolve(x);
+    __native_onMessage(
+      JSON.stringify({
+        operation,
+        args: payload,
+        id: reqId,
+      }),
+    );
+  });
+}
+
+async function testMain() {
+  const resp = await makeRequest("init");
+  console.log("response from init", JSON.stringify(resp));
+}
+
+testMain();