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Installfest Step 2: Node.js & Express Stack

Most of the coding work we do in weeks 3 to 5 will be driven by the back-end web development framework Express. We'll install Express individually in each project we create. For now, we'll install the other tools we'll use along with Express.

Node.js

Note: When copying the code snippets, exclude the ➜ as you run the code in your Terminal. The ➜ is simply an indicator of the user in the Terminal. Notice the $ in your Terminal changed to an ➜ now that we're using zsh instead of bash!

  1. Install Node.js with Homebrew by running the following command in the Terminal:
➜  brew install node

  1. Run the Terminal command which node to check that Node.js was installed. You should see a file path. The Terminal command node changes your Terminal into a Javascript REPL ("Read Evaluate Print Loop"), like the right-hand side of repl.it. Type ctrl + c twice to quit out of the REPL and return to the normal Terminal commands.

  2. Run the Terminal command which npm to check that NPM is installed. The Node Package Manager, used through various npm commands, is a lot like Homebrew, except we'll use it for Node.js-specific tools instead of for general Mac tools. NPM packages are often called "node modules."

Nodemon

Nodemon (short for "node monitor") will make our Node.js workflow more efficient.

  1. Install nodemon globally with the following Terminal command:
➜  sudo npm install -g nodemon

jshint

It's time to install another Sublime Text package!

  1. From the command palette in Sublime Text (cmd + shift + p), select Package Control: Install Package to bring up the list of available packages. Select SublimeLinter from the list, and Package Control will install it for you.
  2. Repeat the step above to install the package SublimeLinter-jshint.
  3. Now Sublime Text 3 has the packages we need, but we also need to install the linter program, jshint. In the Terminal, run sudo npm install -g jshint to install jshint globally.

MongoDB

MonogDB is a database that stores information as easy to read "documents". We'll use it to store data in our Node.js and Express stack.

  1. Use Homebrew to update all our brew packages.
➜  brew update
  1. Run brew install for MongoDB.
➜  brew install mongodb
  1. Then we'll need a directory for MongoDB to save data.
➜  sudo mkdir -p /data/db
  1. Finally we'll want to make sure we have permission to read and write to this directory.
➜  sudo chown -R $USER /data/db
  1. Run two commands to check whether the install worked. You should see a file path after each command.
➜  which mongod
➜  which mongo