How to install SASS with Express?

2019-01-13 17:04发布

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问题:

I am creating a node.js app with Express and socket.io. I want to use SASS and I see there is a npm package for it, what I don't understand is how do I link between the SASS npm and the app and make it parse the SASS?

UPDATE: I used SASS middleware https://github.com/andrew/node-sass installed it and included it the following way:

  sass = require('node-sass');


app.configure(function(){
  app.set('port', process.env.PORT || 3000);

  /* other stuff */

  sass.middleware({
    src: __dirname + '/public/stylesheets/sass',
    dest: __dirname + '/public/stylesheets',
    debug: true
  });
});

But it still doesn't work

回答1:

You need to use the sass middleware, for example this one.

Quoting from docs:

var server = connect.createServer(
   sass.middleware({
       src: __dirname
       , dest: __dirname + '/public'
       , debug: true
    }),
   connect.static(__dirname + '/public')
);

in case of using express, just add:

 app.use(
     sass.middleware({
         src: __dirname + '/sass', //where the sass files are 
         dest: __dirname + '/public', //where css should go
         debug: true // obvious
     })
 );

to your app.configure() call.

Of course on production systems it's a better idea to precompile sass to css.

update

In the example above the middleware will look for sass files in __dirname + '/sass/css'. Also by default it looks for files with .scss extension. There doesn't seem to be an option to change the extension.



回答2:

If you are using express-generator Then try 

express --view=ejs --css=sass


回答3:

Here is a solution based on various sources including the threads/comments above:

node:

var connect = require('connect');
var sass = require('node-sass');

var srcPath = __dirname + '/sass';
var destPath = __dirname + '/public/styles';

var server = connect.createServer(
    sass.middleware({
        src: srcPath,
        dest: destPath,
        debug: true,
        outputStyle: 'expanded',
        prefix: '/styles'
    }),
    connect.static(__dirname + '/public')
);

html:

<!DOCTYPE html>
    <html>
    <head>
         <link rel="stylesheet" type="text/css" href="styles/main.css">
etc

file system:

rootDirectory / server.js (this is the node app)

rootDirectory / public / styles / (this is where the compiled scss files will appear)

rootDirectory / sass / main.scss

This works for me and I've forked the example at:

node-sass-example

here:

node-sass-example using prefix



标签： node.js express sass
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