Skip to content
/ lws Public

A lean, modular web server for rapid full-stack development.

License

Notifications You must be signed in to change notification settings

lwsjs/lws

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

view on npm npm module downloads Gihub repo dependents Gihub package dependents Node.js CI js-standard-style

lws

A lean, modular web server for rapid full-stack development.

Lws is an application core for quickly launching a local web server. Behaviour is added via plugins giving you full control over how requests are processed and responses created.

  • Supports HTTP, HTTPS and HTTP2.
  • Small and 100% personalisable. Load and use only the behaviour required by your project.
  • Attach a custom view to personalise how activity is visualised.
  • Programmatic and command-line APIs.

Synopsis

Core usage

Launch an HTTP server on the default port of 8000.

$ lws
Listening at http://mba4.local:8000, http://127.0.0.1:8000, http://192.168.0.200:8000

For HTTPS or HTTP2, pass the --https or --http2 flags respectively.

$ lws --http2
Listening at https://mba4.local:8000, https://127.0.0.1:8000, https://192.168.0.200:8000

Now your server is running, the next step is to attach some middleware to process requests.

Using middleware plugins

Install and use some middleware (lws-static and lws-index) to serve static files and directory listings.

$ npm install --save-dev lws-static lws-index

$ lws --stack lws-static lws-index
Listening at http://mba4.local:8000, http://127.0.0.1:8000, http://192.168.0.200:8000

The current directory will now be available to explore at http://127.0.0.1:8000.

Install and use logging middleware. Note the lws- prefix is optional when supplying module names to --stack.

$ npm install --save-dev lws-log

$ lws --stack log static index --log.format combined
Listening at http://mba4.local:8000, http://127.0.0.1:8000, http://192.168.0.200:8000
::ffff:127.0.0.1 - GET /lws.config.js HTTP/1.1 200 52 - 8.259 ms
::ffff:127.0.0.1 - GET /package.json HTTP/1.1 200 399 - 1.478 ms

Creating a custom middleware plugin

Lws uses Koa as its middleware engine. Here is a trivial plugin example, save the following code as example-middleware.js:

class ExamplePlugin {
  middleware () {
    return async (ctx, next) => {
      ctx.body = 'Hello from lws!'
      await next()
    }
  }
}

export default ExamplePlugin

Now launch an HTTP server using this middleware.

$ lws --stack example-middleware.js
Listening at http://mba4.local:8000, http://127.0.0.1:8000, http://192.168.0.200:8000

$ curl http://127.0.0.1:8000
Hello from lws!

Install

$ npm install --save-dev lws

Documentation

See also


© 2016-24 Lloyd Brookes <75pound@gmail.com>.

Tested by test-runner. Documented by jsdoc-to-markdown.