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expressworks

Express.js workshop based on workshopper and inspired by stream-adventure by @substack and @maxogden. ExpressWorks will provide you with tasks and hints. You write the solutions to these problems. Then, after you wrote a solution as an Express.js app, ExpressWorks will verify your solution to the problem.

Hello World Express.js app

Contributors

    55  Azat Mardanov
    12  Azat Mardan
     3  Charlotte Spencer
     2  Thomas Burette
     2  intrueder
     1  Harry Moreno
     1  Jonny Arnold
     1  Ryan Kois
     1  Timothy Gu
     1  Wojciech Gawronski
     1  Giuseppe
     1  Ayman Mahfouz
     1  Dylan Smith
     1  Finn
     1  Alessandro Lensi

Make a PR to see your name here. ;-)

PS: via git shortlog -n -s

Installation (recommended)

Recommended global installation:

$ npm install -g expressworks
$ expressworks

If you see errors, try:

$ sudo npm install -g expressworks

Local Installation (advanced)

Run&install locally:

$ mkdir node_modules
$ npm install expressworks
$ cd node_modules/expressworks
$ node expressworks

Usage

ExpressWorks understands these commands:

Usage

  expressworks
    Show a menu to interactively select a workshop.
  expressworks list
    Show a newline-separated list of all the workshops.
  expressworks select NAME
    Select a workshop.
  expressworks current
    Show the currently selected workshop.
  expressworks run program.js
    Run your program against the selected input.
  expressworks verify program.js
    Verify your program against the expected output.

Reset

If you want to reset the list of completed tasks, clean the ~/.config/expressworks/completed.json file.

Hello World Express.js app

More Information

Check out Express.js Guide.

Steps

Hello World

Create an Express.js app that runs on localhost:3000, and outputs "Hello World!" when somebody goes to root '/home'.

process.argv[2] will be provided by expressworks to you, this is the port number.

Jade

Create an Express.js app with a home page (/home) rendered by jade template engine, that shows current date (toDateString).

Good Old Form

Write a route ('/form') that processes HTML form input (

) and prints backwards the str value.

Static

Apply static middleware to server index.html file without any routes. The index.html file is provided and usable via process.argv[3] value of the path to it. However, you can use you're own file with this content:

  <html>
    <head>
      <link rel="stylesheet" type="text/css" href="/main.css"/>
    </head>
    <body>
      <p>I am red!</p>
    </body>
  </html>

Stylish CSS

Style your HTML from previous example with some Stylus middleware. The path to main.styl file is provided in process.argv[3] or you can create your own file/folder from these:

  p
    color red

The index.html file:

  <html>
    <head>
      <title>expressworks</title>
      <link rel="stylesheet" type="text/css" href="/main.css"/>
    </head>
    <body>
      <p>I am red!</p>
    </body>
  </html>

Param Pam Pam

Create an Express.js server that processes PUT /message/:id requests, e.g., PUT /message/526aa677a8ceb64569c9d4fb.

As the response of this request return id SHA1 hashed with a date:

  require('crypto')
    .createHash('sha1')
    .update(new Date().toDateString().toString() + id)
    .digest('hex')

What's in Query

Write a route that extracts data from query string in the GET /search URL route, e.g., ?results=recent&include_tabs=true, and then transforms outputs it back to the user in JSON format.

JSON Me

Write a server that reads a file (file name is passed in process.argv[3]), parses it to JSON and outputs the content to the user with res.json(object).