// 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'
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.
Here are a few options for a social/developer post about depending on your audience (Twitter/X, LinkedIn, or Dev.to style). Option 1: Short & Punchy (Best for Twitter/X) Headline: No more callback hell in Meteor 🚀
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:
// Modern Meteor 3 approach async function fetchData() { return new Promise((resolve) => { setTimeout(() => resolve({ user: 'alice' }), 100); }); } const result = await fetchData(); Use wrapAsync for legacy callback-based npm packages, but prefer Promises + async/await in new code.
#MeteorJS #AsyncAwait #NodeJS #JavaScript Title: Understanding Meteor.wrapAsync in Meteor.js
I had an npm library that only supports callbacks:
Need to use an old-school callback function in Meteor? wrapAsync has your back.
// 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'
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.
Here are a few options for a social/developer post about depending on your audience (Twitter/X, LinkedIn, or Dev.to style). Option 1: Short & Punchy (Best for Twitter/X) Headline: No more callback hell in Meteor 🚀 meteor wrapasync
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:
// Modern Meteor 3 approach async function fetchData() { return new Promise((resolve) => { setTimeout(() => resolve({ user: 'alice' }), 100); }); } const result = await fetchData(); Use wrapAsync for legacy callback-based npm packages, but prefer Promises + async/await in new code. Option 1: Short & Punchy (Best for Twitter/X)
#MeteorJS #AsyncAwait #NodeJS #JavaScript Title: Understanding Meteor.wrapAsync in Meteor.js
I had an npm library that only supports callbacks: wrapAsync has your back
Need to use an old-school callback function in Meteor? wrapAsync has your back.