Learn Express.js from the author of one of the best books on Express.js—Pro Express.js—workshop to teach you basics of Express.js.
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.
Video screencasts which walk you through setup and problems (spoiler alert): YouTube ExpressWorks.
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Make a PR to see your name here. ;-)
$ git shortlog -n -s. Please add yourself to the list when making a pull request.
Recommended global installation:
$ npm install -g expressworks $ expressworks
If you see errors, try:
$ sudo npm install -g expressworks $ expressworks
Local Installation (Advanced)
Run & install locally:
$ mkdir node_modules $ npm install expressworks $ cd node_modules/expressworks $ node expressworks
Optional step that gives you the global command (
expressworks) in the Terminal/command prompt:
$ npm link $ expressworks
Note: ExpressWorks depends on a local copy of Express being available in your project folder. To do the exercises, make sure to install the Express.js with
$ npm init $ npm install [email protected]
See Offline Setup for more required dependencies.
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.
If you would like to setup all node packages beforehand, you can complete this workshop offline. Here are all the modules to install with exact versions that this workshop supports:
$ npm install [email protected] $ npm install [email protected] $ npm install [email protected] $ npm install [email protected]
Note: You need to have
packagen.json in your project folder before installing dependencies. Run
$ mkdir node_modules or
$ npm init to create one of them.
If you want to reset the list of completed tasks, clean the
Create an Express.js app that runs on localhost:3000, and outputs "Hello World!" when somebody goes to root '/home'.
process.argv will be provided by expressworks to you, this is the port number.
Create an Express.js app with a home page (/home) rendered by pug template engine, that shows current date (toDateString).
Good Old Form
Write a route ('/form') that processes HTML form input (
<form><input name="str"/></form>) and prints backwards the str value.
Apply static middleware to server index.html file without any routes. The index.html file is provided and usable via
process.argv value of the path to it. However, you can use your 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>
Style your HTML from previous example with some Stylus middleware. The path to main.styl file is provided in
process.argv 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
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.
Write a server that reads a file (file name is passed in
process.argv), parses it to JSON and outputs the content to the user with