post-robot

import postRobot from 'post-robot'; // --- Listener Window (e.g., in an iframe) --- postRobot.on('getUserDetails', function(event) { const userId = event.data.id; console.log(`Listener received request for user ID: ${userId} from ${event.origin}`); // Simulate fetching user data asynchronously return new Promise(resolve => { setTimeout(() => { if (userId === 123) { resolve({ id: userId, name: 'Alice Smith', email: 'alice@example.com', // Functions can also be returned and invoked remotely logStatus: (status) => console.log(`[Remote Log] Alice's status: ${status}`) }); } else { resolve(null); // User not found } }, 500); }); }); console.log('post-robot listener initialized for getUserDetails.'); // --- Sender Window (e.g., parent window) --- // This would typically be in a *different* window context, e.g., the parent window calling the iframe. // For demonstration, we'll simulate the call. // In a real scenario, 'someWindow' would be window.frames[0] or a popup window reference. const someWindow = window.opener || window.parent; // Placeholder, adjust for actual target window if (someWindow && someWindow !== window) { postRobot.send(someWindow, 'getUserDetails', { id: 123 }, { timeout: 3000 }) .then(function(event) { const user = event.data; if (user) { console.log(`Sender received user: ${user.name} from ${event.origin}`); user.logStatus('active'); // Call a function passed from the other window } else { console.log('Sender: User not found.'); } }) .catch(function(err) { console.error('Sender error:', err.message); }); } else { console.warn('Sender simulation: Target window not found. This code needs to run in a separate context to function.'); }