I'd like my node package (published on npm) to alert the user when a new version is available. How can i check programmatically for the latest version of a published package and pare it to the current one?

Thanks

I'd like my node package (published on npm) to alert the user when a new version is available. How can i check programmatically for the latest version of a published package and pare it to the current one?

Thanks

• javascript
• node.js
• npm
• package

Share Improve this question Follow asked Jun 22, 2017 at 12:35 pistacchiopistacchio 59k110110 gold badges287287 silver badges434434 bronze badges 1

• 1 I think you can find what you want in this npm package : npmjs./package/npm-check-updates Check how he doing this for his project. – Zagonine Commented Jun 22, 2017 at 12:38

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1 Answer 1

Sorted by: Reset to default 8

You can bine the npmview (for getting remote version) and semver (for paring versions) packages to do this:

const npmview = require('npmview');
const semver  = require('semver');

// get local package name and version from package.json (or wherever)
const pkgName    = require('./package.json').name;
const pkgVersion = require('./package.json').version;

// get latest version on npm
npmview(pkgName, function(err, version, moduleInfo) {
  // pare to local version
  if(semver.gt(version, pkgVersion)) {
    // remote version on npm is newer than current version
  }
});