blocking

Meteor smart package which makes node.js asynchronous functions blocking. It is assumed that the last argument of the function you want to make blocking is a standard callback which takes two arguments, an error value and a return value. Example:

blocking(function (a, b, cb) { cb(null, a + b) })(1, 2) === 3

In the case of an error, an exception is thrown. Additionally, an object to bind this can be passed. This is useful when wrapping object methods:

blocking(obj, obj.method)(42)

Adding this package to your Meteor application adds blocking function into the global scope which you can use to wrap an asynchronous function into a blocking function.

Server side only.

Installation

meteor add peerlibrary:blocking

Related projects

• Meteor provides now a Meteor.wrapAsync function with similar functionality, but if the last provided argument to the resulting blocking function is a function, it will process it in a special way as a callback. This might lead to issues if you are making blocking functions which might normally take non-callback functions as arguments. This package is thus more suitable for functions which take functions as arguments.
• meteorhacks:async provides additionally a whole suite of helper functions which makes it easier to make blocking object methods. This package can also do that, but you have to manually do it for each method (or create your own loop).