In a project, there could be a possibility that our Node.js application needs to connect with other existing applications to fetch data.
http://www.dotnetcurry.com/nodejs/1225/call-external-service-using-nodejs
github https://github.com/dotnetcurry/nodejs-external-service
origin - http://www.pipiscrew.com/?p=3057 calling-externally-hosted-service-using-node-js