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kareem

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kareem

Next-generation take on pre/post function hooks

  • 2.6.3
  • latest
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
2.1M
decreased by-15.03%
Maintainers
1
Weekly downloads
 
Created

What is kareem?

Kareem is a lightweight middleware framework for handling pre and post hooks in JavaScript. It is often used in conjunction with Mongoose to manage middleware for MongoDB operations, but it can be used independently for any asynchronous control flow.

What are kareem's main functionalities?

Pre Hooks

Pre hooks allow you to run functions before a specified event. In this example, a pre-save hook is defined and executed before the 'save' event.

const Kareem = require('kareem');
const hooks = new Kareem();

hooks.pre('save', function(next) {
  console.log('This is a pre-save hook');
  next();
});

hooks.execPre('save', null, function() {
  console.log('Pre-save hooks executed');
});

Post Hooks

Post hooks allow you to run functions after a specified event. In this example, a post-save hook is defined and executed after the 'save' event.

const Kareem = require('kareem');
const hooks = new Kareem();

hooks.post('save', function() {
  console.log('This is a post-save hook');
});

hooks.execPost('save', null, [function() {
  console.log('Post-save hooks executed');
}]);

Parallel Hooks

Parallel hooks allow you to run multiple hooks in parallel. In this example, two pre-save hooks are defined to run in parallel before the 'save' event.

const Kareem = require('kareem');
const hooks = new Kareem();

hooks.pre('save', true, function(next, done) {
  setTimeout(function() {
    console.log('First parallel pre-save hook');
    done();
  }, 100);
});

hooks.pre('save', true, function(next, done) {
  setTimeout(function() {
    console.log('Second parallel pre-save hook');
    done();
  }, 50);
});

hooks.execPre('save', null, function() {
  console.log('All parallel pre-save hooks executed');
});

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Package last updated on 05 Apr 2024

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