Interview Questions Links

https://blog.risingstack.com/node-js-interview-questions/

https://www.techbeamers.com/top-30-node-js-interview-questions-answers/

https://github.com/sudheerj/javascript-interview-questions

https://github.com/MaximAbramchuck/awesome-interview-questions/blob/master/README.md

Hosting Static WebSite using AWS , S3 , Cloudfront

https://www.davidbaumgold.com/tutorials/host-static-site-aws-s3-cloudfront/

Unicode, UTF-8 blah.. blah..

Following blogs might complete the story..

http://kunststube.net/encoding/

https://www.joelonsoftware.com/2003/10/08/the-absolute-minimum-every-software-developer-absolutely-positively-must-know-about-unicode-and-character-sets-no-excuses/

http://unicode.org/faq/utf_bom.html

Free Https Certificates

Use letsencrypt,org if you want free HTTPS certs . The certs are valid for 3 months. You might need to run a cron job to renew the certs.

Also while integration I faced an issue where letsencrypt server was not able to access my server. It is because I have enabled the HTTP User authentication on full site.

letsencrypt wants access to .wellknown dir. I just need to bypass this dir in nginx config. After that things worked like a charm.

How to use Workspace in Jenkins build Flow plugin

While Integrating with Build Flow plugin in Jenkins , I see a strange problem of files not getting downloaded and Post builds action not getting triggered.

After goolging , I figured out the problem. We need to check the "Flow runs needs a workspace" check-box to enable the code check-out and start post build actions.

How to design scalable social site

http://highscalability.com/blog/2015/7/22/architecting-backend-for-a-social-product.html

Using OAuth 2.0 to Access Google APIs

https://developers.google.com/identity/protocols/OAuth2