A backend api server used by instmap
$ git clone https://github.com/HoMuChen/ig-data-api.git
$ cd ig-data-api
$ npm i
$ cd envs
$ cp dev.dev.sample dev.env
$ vi dev.env ## add all you need in the dev.env as system environment
$ source envs/dev.env # souce system environment
$ npm start # starts app sever