is-published

Checks if a specific version of a package is already published or not. You can use this, for example, in a CI pipeline to check if currently committed version in package.json is published or not, and publish if it is not.

Usage

is-published will exit with code 0 if package@version is published and with code 1 if it is not. When you run it without any arguments, it will look into package.json that exists in the process.cwd().

$ npx is-published || npm publish

You can also give package name and version as arguments.

$ npx is-published webpack 5.0.0 && echo "Finally!" || echo "Still waiting..."

You can also import the function to use it directly from javascript

import { isPublished } from 'is-published';

isPublished({
    name: 'webpack',
    version: '5.0.0'
}).then(published => {
    if (published) console.log("Finally!");
    else console.log("Still waiting...");
}).catch(err => {
    // error connecting to registry or authentication or something like that
});