SharePoint-apponly-node

access SharePoint using client credentials "apponly" from nodejs applications
run npm install sharepoint-apponly-node --save

1. Require the sharepoint-apponly module
   var sharepoint=require('sharepoint-apponly-node');
2. Execute call to getSharePointAppOnlyAccessToken and get the token response body in the callback sharepoint.getSharePointAppOnlyAccessToken('https://yoursubdomain.sharepoint.com', 'YourClientId','YourClientSecret',function(response){ console.log(response); });
   the result will be something like