<commit_before>setting up reverse proxy using nginx

https://elements.heroku.com/buttons/narr/heroku-nginx-node-example

https://m.alphasights.com/using-nginx-on-heroku-to-serve-single-page-apps-and-avoid-cors-5d013b171a45

https://www.nginx.com/blog/5-performance-tips-for-node-js-applications/#reverse-proxy

Setup postgresql

https://www.codementor.io/devops/tutorial/getting-started-postgresql-server-mac-osx

Connect postgresql to node

https://github.com/brianc/node-postgres<commit_msg>links updated<commit_after>setting up reverse proxy using nginx

https://elements.heroku.com/buttons/narr/heroku-nginx-node-example

https://m.alphasights.com/using-nginx-on-heroku-to-serve-single-page-apps-and-avoid-cors-5d013b171a45

https://www.nginx.com/blog/5-performance-tips-for-node-js-applications/#reverse-proxy

Connect postgresql to node

https://www.wlaurance.com/2016/03/node.js-postgresql-example/
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