Security News
The Dark Side of Open Source
At Node Congress, Socket CEO Feross Aboukhadijeh uncovers the darker aspects of open source, where applications that rely heavily on third-party dependencies can be exploited in supply chain attacks.
freeport-async
Advanced tools
Readme
Finds an available port for your application to use. You can specify a range where to look for an available port. And can also find a range of available ports for you to use. You can also be used to test to see if a given port is available.
All functions are async and return Promises.
let freeportAsync = require("freeport-async");
let portICanUse = await freeportAsync();
let freeportAsync = require("freeport-async");
let portIn9000Range = await freeportAsync(9000);
let portAvailableForAnyOrLocalhost = await freeportAsync(9000, {
hostnames: [null, "localhost"]
});
let isPort5000Available = await freeportAsync.availableAsync(5000);
let listOf5ConsecutiveAvailablePorts = await freeportAsync.rangeAsync(5);
let freeRangeIn12000Range = await freeportAsync.rangeAsync(3, 12000);
Note that this code just finds available ports, but doesn't reserve them in any way. This means that if you have other code that might be looking for a port in the same range at the same time, you could run into issues.
Also, if you call freeportAsync
twice in a row, it will often return the same port number twice. If you want to find two (or more) ports you can use, you need to call freeportAsync.rangeAsync(<number-of-ports>, [startSearchFrom])
.
FAQs
Finds an available port for your application to use.
The npm package freeport-async receives a total of 438,150 weekly downloads. As such, freeport-async popularity was classified as popular.
We found that freeport-async demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 18 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
At Node Congress, Socket CEO Feross Aboukhadijeh uncovers the darker aspects of open source, where applications that rely heavily on third-party dependencies can be exploited in supply chain attacks.
Research
Security News
The Socket Research team found this npm package includes code for collecting sensitive developer information, including your operating system username, Git username, and Git email.
Security News
OpenJS is warning of social engineering takeovers targeting open source projects after receiving a credible attempt on the foundation.