Source:
https://www.youtube.com/playlist?list=PLnBvgoOXZNCOiV54qjDOPA9R7DIDazxBA
$ cd /var/www/html
html$ git clone https://github.com/swagger-api/swagger-editor
html$ cd swagger-editor
swagger-editor$ npm install -g swagger
swagger-editor$ npm install --save swagger-ui
swagger-editor$ npm install --save swagger-ui-dist