var getPackageJsons = require('get-package-jsons');
var packageGetter = getPackageJsons({registry: 'http://registry.npm.org'}); // optional
 
var dependency = {
  name: 'request',
  version: '2.3.10' // requires an *exact* version.
};
 
packageGetter.get(dependency, function (err) {
  console.log(dependency['package']); // => parsed package.json content
})
 
// Or use as a through stream
 
var createDependencyStream = require('create-dependency-stream');
var resolveDependencyVersions = require('resolve-dependency-versions');
var dependencies = createDependencyStream('/path/to/package.json');
 
dependencies.pipe(resolver).pipe(packageGetter);