View async on Snyk Open Source Advisor

Package Health Score

94 / 100

security
No known security issues
popularity
Key ecosystem project
maintenance
Healthy
community
Active

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Security

No known security issues

All security vulnerabilities belong to production dependencies of direct and indirect packages.

Security and license risk for significant versions

All Versions

Version				Vulnerabilities	License Risk
3.2.6	\|	08/2024	Popular	0 C 0 H 0 M 0 L	0 H 0 M 0 L
2.6.4	\|	04/2022		0 C 0 H 0 M 0 L	0 H 0 M 0 L
3.1.1	\|	01/2020		0 C 1 H 0 M 0 L	0 H 0 M 0 L
1.5.2	\|	01/2016		0 C 0 H 0 M 0 L	0 H 0 M 0 L
1.4.2	\|	08/2015		0 C 0 H 0 M 0 L	0 H 0 M 0 L

License

MIT

Security Policy

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Popularity

Key ecosystem project

Weekly Downloads (65,214,184)

GitHub Stars: 28.18K
Forks: 2.41K
Contributors: 240

Direct Usage Popularity

The npm package async receives a total of 65,214,184 downloads a week. As such, we scored async popularity level to be Key ecosystem project.

Based on project statistics from the GitHub repository for the npm package async, we found that it has been starred 28,185 times.

Downloads are calculated as moving averages for a period of the last 12 months, excluding weekends and known missing data points.

Community

Active

Readme.md: Yes
Contributing.md: No
Code of Conduct: No
Contributors: 240
Funding: No

A good and healthy external contribution signal for async project, which invites more than one hundred open source maintainers to collaborate on the repository.

We found a way for you to contribute to the project! Looks like async is missing a Code of Conduct.

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Maintenance

Healthy

Commit Frequency

Open Issues: 5
Open PR: 6
Last Release: 3 months ago
Last Commit: 1 month ago

Further analysis of the maintenance status of async based on released npm versions cadence, the repository activity, and other data points determined that its maintenance is Healthy.

We found that async demonstrates a positive version release cadence with at least one new version released in the past 12 months.

As a healthy sign for on-going project maintenance, we found that the GitHub repository had at least 1 pull request or issue interacted with by the community.

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Package

Node.js Compatibility: not defined

Age: 14 years
Dependencies: 0 Direct
Versions: 95
Install Size: 808 kB
Dist-tags: 2
# of Files: 137
Maintainers: 5
TS Typings: Yes

async has more than a single and default latest tag published for the npm package. This means, there may be other tags available for this package, such as next to indicate future releases, or stable to indicate stable releases.

Not sure how to use async?

To help you get started, we've collected the most common ways that async is being used within popular public projects.

GUI / http-stale-cache-proxy / test / proxy.js View on Github

it('caches concurrent requests to the appropriate file', function(done) {
    // Fire off 20 concurrent requests and ensure that all the cached responses
    // end up in the appropriate place.
    async.times(20, function(index, next) {
      var randomInput = Math.random().toString();
      var url = '/echo_chunked?input=' + randomInput;

      var cacheKey = ['GET', 'localhost:9333', url].join('');
      var cacheBase = crypto.createHash('sha256').update(cacheKey).digest('hex');

      request.get('http://localhost:9333' + url, function(error, response, body) {
        next(null, {
          url: url,
          input: randomInput,
          output: body,
          cacheBase: cacheBase,
        });
      });
    }, function(error, requests) {
      setTimeout(function() {

View more ways to use async

Async Logo

Github Actions CI status

Async is a utility module which provides straight-forward, powerful functions for working with asynchronous JavaScript. Although originally designed for use with Node.js and installable via npm i async, it can also be used directly in the browser. An ESM/MJS version is included in the main async package that should automatically be used with compatible bundlers such as Webpack and Rollup.

A pure ESM version of Async is available as async-es.

For Documentation, visit

For Async v1.5.x documentation, go HERE

// for use with Node-style callbacks...
var async = require("async");

var obj = {dev: "/dev.json", test: "/test.json", prod: "/prod.json"};
var configs = {};

async.forEachOf(obj, (value, key, callback) =&gt; {
    fs.readFile(__dirname + value, "utf8", (err, data) =&gt; {
        if (err) return callback(err);
        try {
            configs[key] = JSON.parse(data);
        } catch (e) {
            return callback(e);
        }
        callback();
    });
}, err =&gt; {
    if (err) console.error(err.message);
    // configs is now a map of JSON data
    doSomethingWith(configs);
});

var async = require("async");

// ...or ES2017 async functions
async.mapLimit(urls, 5, async function(url) {
    const response = await fetch(url)
    return response.body
}, (err, results) =&gt; {
    if (err) throw err
    // results is now an array of the response bodies
    console.log(results)
})

FAQs

What is async?

Higher-order functions and common patterns for asynchronous code. Visit Snyk Advisor to see a full health score report for async, including popularity, security, maintenance & community analysis.

Is async popular?

The npm package async receives a total of 65,214,184 weekly downloads. As such, async popularity was classified as a key ecosystem project. Visit the popularity section on Snyk Advisor to see the full health analysis.

Is async well maintained?

We found that async demonstrated a healthy version release cadence and project activity. It has a community of 240 open source contributors collaborating on the project. See the full package health analysis to learn more about the package maintenance status.

Is async safe to use?

The npm package async was scanned for known vulnerabilities and missing license, and no issues were found. Thus the package was deemed as safe to use. See the full health analysis review.

Last updated on 21 November-2024, at 11:26 (UTC).

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async

Higher-order functions and common patterns for asynchronous code For more information about how to use this package see README

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Popularity

Weekly Downloads (65,214,184)

Direct Usage Popularity

Community

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Package

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async development dependencies

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Package Health Score

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Security and license risk for significant versions

Is your project affected by vulnerabilities?

Weekly Downloads (65,214,184)

Direct Usage Popularity

Embed Package Health Score Badge

Commit Frequency

Keep your project healthy

Check your package.json

Snyk Vulnerability Scanner

Not sure how to use async?

async development dependencies

FAQs

What is async?

Is async popular?

Is async well maintained?

Is async safe to use?

Build a secure application checklist

Select a recommended open source package

Scan your app for vulnerabilities

Source Code

Open Source

Container

Config

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