legacyLibrary.getData(id, (err, data) => { if (err) console.error(err); console.log(data); });
Understanding Meteor.wrapAsync in Meteor.js
#MeteorJS #AsyncAwait #NodeJS #JavaScript meteor wrapasync
const result = await new Promise((resolve) => setTimeout(() => resolve('Done'), 1000) );
It handles the pausing and resuming of the execution stack so you can use simple return statements instead of nesting callbacks. Essential Tips for Success Removed Functions - Meteor 3.0 Migration Guide legacyLibrary
// With wrapAsync const syncFetch = Meteor.wrapAsync(fetchData); const result = syncFetch(); // Blocks until done console.log(result.user); // 'alice'
Wrap the function once outside the method to avoid re-wrapping on every call. Most Meteor functions (like Collection
Historically, Meteor relied on to avoid "callback hell". Most Meteor functions (like Collection.find() ) ran synchronously because they were wrapped in Fibers. When you used a 3rd-party NPM library that used callbacks, you would hit the infamous "Meteor code must always run within a Fiber" error. Meteor.wrapAsync solves this by:
meteor wrapasync is a simple and useful package for handling asynchronous code in Meteor applications. While it may not be actively maintained, it's still a viable solution for working with legacy async code or integrating third-party libraries. If you're working with modern async/await code, you might not need this package, but it's still worth knowing about. Rating: 7/10.
wrapasync is a Meteor package that provides a simple way to handle asynchronous code in Meteor applications. Here's a review of the package: