#MeteorJS #AsyncAwait #NodeJS #JavaScript Title: Understanding Meteor.wrapAsync in Meteor.js

// Without wrapAsync (callback style) function fetchData(callback) { setTimeout(() => callback(null, { user: 'alice' }), 100); } // With wrapAsync const syncFetch = Meteor.wrapAsync(fetchData); const result = syncFetch(); // Blocks until done console.log(result.user); // 'alice'

legacyLibrary.getData(id, (err, data) => { if (err) console.error(err); console.log(data); }); I wanted to use it inside a Meteor method without nesting. Solution:

Need to use an old-school callback function in Meteor? wrapAsync has your back.

const result = await new Promise((resolve) => setTimeout(() => resolve('Done'), 1000) ); ✅ wrapAsync is great for converting Node.js style callbacks (error, result). ✅ But for modern Meteor 3+ — just use native async/await everywhere.

Wrap the function once outside the method to avoid re-wrapping on every call.