node-sass-middleware

[!WARNING] LibSass, Node Sass and this middleware are deprecated. While they will continue to receive maintenance releases indefinitely, there are no plans to add additional features or compatibility with any new CSS or Sass features. Projects that still use it should move onto Dart Sass.

Connect/Express middleware for node-sass.

Install

npm install node-sass-middleware

Usage

Recompile .scss or .sass files automatically for connect and express based http servers.

Connect example

const connect = require('connect')
const sassMiddleware = require('node-sass-middleware')
const server = connect.createServer(
  sassMiddleware({
      /* Options */
      src: __dirname
    , dest: __dirname + '/public'
    , debug: true
    , outputStyle: 'compressed'
    , prefix:  '/prefix'  // Where prefix is at <link rel="stylesheets" href="https://github.com/sass/node-sass-middleware/blob/master/prefix/style.css"/>
  }),
  connect.static('/prefix', __dirname + '/public')
);

There is an example connect app here: https://github.com/andrew/node-sass-example

Heavily inspired by https://github.com/LearnBoost/stylus

Express example

const express = require('express');
const sassMiddleware = require('node-sass-middleware');
const path = require('path');
const app = express();
app.use(sassMiddleware({
    /* Options */
    src: __dirname,
    dest: path.join(__dirname, 'public'),
    debug: true,
    outputStyle: 'compressed',
    prefix:  '/prefix'  // Where prefix is at <link rel="stylesheets" href="https://github.com/sass/node-sass-middleware/blob/master/prefix/style.css"/>
}));
// Note: you must place sass-middleware *before* `express.static` or else it will
// not work.
app.use('/public', express.static(path.join(__dirname, 'public')));

Connect with other middleware example

const connect = require('connect');
const sassMiddleware = require('node-sass-middleware');
const postcssMiddleware = require('postcss-middleware');
const autoprefixer = require('autoprefixer');
const path = require('path');
const http = require('http');
const app = connect();
const destPath = __dirname + '/public';
app.use(sassMiddleware({
    /* Options */
    src: __dirname
  , response: false
  , dest: destPath
  , outputStyle: 'extended'
}));
app.use(postcssMiddleware({
  plugins: [
    /* Plugins */
    autoprefixer({
      /* Options */
    })
  ],
  src: function(req) {
    return path.join(destPath, req.url);
  }
}));

http.createServer(app).listen(3000);

Options

src - (String) Source directory used to find .scss or .sass files.

Optional configurations

beepOnError - Enable beep on error, false by default.
debug - [true | false], false by default. Output debugging information.
dest - (String) Destination directory used to output .css files (when undefined defaults to src).
error - A function to be called when something goes wrong.
force - [true | false], false by default. Always re-compile.
indentedSyntax - [true | false], false by default. If true compiles files with the .sass extension instead of .scss in the src directory.
log - function(severity, key, val, message), used to log data instead of the default console.error. "severity" matches Winston severity levels.
maxAge - MaxAge to be passed in Cache-Control header.
prefix - (String) It will tell the sass middleware that any request file will always be prefixed with <prefix> and this prefix should be ignored.
response - [true | false], true by default. To write output directly to response instead of to a file.
root - (String) A base path for both source and destination directories.

For full list of options from original node-sass project go here.

Express example with custom log function

const express = require('express');
const sassMiddleware = require('node-sass-middleware');
const path = require('path');
const winston = require('winston');
const app = express();
winston.level = 'debug';
app.use(sassMiddleware({
    /* Options */
    src: __dirname,
    dest: path.join(__dirname, 'public'),
    debug: true,
    log: function (severity, key, value) { winston.log(severity, 'node-sass-middleware   %s : %s', key, value); }
}));
// Note: you must place sass-middleware *before* `express.static` or else it will
// not work.
app.use(express.static(path.join(__dirname, 'public')));

Contributors

We <3 our contributors! A special thanks to all those who have clocked in some dev time on this project, we really appreciate your hard work. You can find a full list of those people here.

Building and Testing

git clone git@github.com:sass/node-sass-middleware
cd node-sass-middleware

npm install
npm test

Note on Patches/Pull Requests

Fork the project.
Make your feature addition or bug fix.
Add documentation if necessary.
Add tests for it. This is important so I don't break it in a future version unintentionally.
Send a pull request. Bonus points for topic branches.

sass / node-sass-middleware

readme