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.
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Make a PR to see your name here. ;-)
$ git shortlog -n -s
Recommended global installation:
$ npm install express $ 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
$ npm link $ expressworks
Note: ExpressWorks depends on a local copy of express being available. Make sure to do
$ npm install express to do the exercises.
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 so you can complete this workshop offline. Here are all the modules to install with exact versions that this workshop supports:
$ npm install email@example.com $ npm install firstname.lastname@example.org $ npm install email@example.com $ npm install firstname.lastname@example.org
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
Check out Express.js Guide.
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 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.
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