Today I Learned

a small example of NodeJS using MongoDB and ReactJS

Installation

Web App

Hosted at: https://secure-wildwood-12307.herokuapp.com/

Database: https://mlab.com/databases/til/collections/facts

Installation:

npm install

Launch server and client with concurrently:

npm run dev

Cypress Testing:

npm test

Jest and Enzyme Testing:

cd til-client && yarn test

Open http://localhost:3000 to view it in the browser.

To install MongoDB:

• on MacOS with Homebrew, run:

  brew update
  brew install mongodb
  brew services start mongodb
  

  • to fix the error "Permission denied @ dir_s_mkdir - /usr/local/Frameworks", run:

    sudo mkdir /usr/local/Frameworks
    sudo chown $(whoami):admin /usr/local/Frameworks
    

  • to watch the log, run

    tail -f /usr/local/var/log/mongodb/mongo.log
    

    see https://docs.mongodb.com/manual/tutorial/install-mongodb-on-os-x/#install-with-homebrew

• all other systems:

  • see https://docs.mongodb.com/guides/server/install/

To install TIL CLI:

Create til command:

npm link

(on MacOS with Homebrew, you may also need to do

brew unlink node && brew link node

)

CLI Usage

From the command line, run

til help

To add a lesson:

til add 'eels are fish, not snakes'

To list all lessons:

til list