init

_libs/zca-js/examples/login.ts

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+import type { Credentials } from "../src";
+
+import { Zalo } from "../src";
+import fs from "node:fs";
+
+const zalo = new Zalo();
+const credentialsPath = "./examples/credentials.json";
+
+function validateCredentials(credentials: Partial<Credentials>): credentials is Credentials {
+    return !!credentials.cookie && !!credentials.imei && !!credentials.userAgent;
+}
+
+function getCredentials() {
+    if (!fs.existsSync(credentialsPath)) {
+        return null;
+    }
+
+    const raw = fs.readFileSync(credentialsPath, "utf-8") || "{}";
+    const credentials = JSON.parse(raw);
+    return validateCredentials(credentials) ? credentials : null;
+}
+
+const credentials = getCredentials();
+
+const isValidCredentials = credentials !== null;
+const api = isValidCredentials ? await zalo.login(credentials) : await zalo.loginQR();
+
+if (!isValidCredentials) {
+    const apiContext = api.getContext();
+    const credentials: Credentials = {
+        cookie: apiContext.cookie.toJSON()?.cookies || [],
+        imei: apiContext.imei,
+        userAgent: apiContext.userAgent,
+    };
+
+    fs.writeFileSync(credentialsPath, JSON.stringify(credentials, null, 2), "utf-8");
+}
+
+const myProfile = await api.fetchAccountInfo();
+console.log("My profile:", myProfile);