Instructions on utilizing clean-css with Node.js to process incoming requests

Question

Instructions on utilizing clean-css with Node.js to process incoming requests

I need help finding a way to pipe request output into clean-css for minification and then return it as a response. The application I am working on is using restify framework.

Here is an example of what I'm trying to accomplish:

var url = "http://www.example.com/css/style.css";
request.get(url).pipe(minify()).pipe(res);

I am struggling to define the minify() function to accept a stream and return one. Despite trying multiple packages, none have been successful so far. Any assistance would be greatly appreciated!

css node.js request minify clean-css

Answer 1

Answer №1

If you're looking to streamline your CSS code, consider using a Transform stream. This method involves retrieving the CSS code from a stream generated by request.get, applying minification techniques, and delivering the condensed CSS output.

Take a look at this practical demonstration:

const express = require('express');
const request = require('request');
const { Transform } = require('stream');
const CleanCSS = require('clean-css');

const app = express();
const cleanCss = new CleanCSS();
const url = 'http://www.example.com/css/style.css';

function createMinifyTransform() {
    return new Transform({
        transform(chunk, encoding, callback) {
            const output = cleanCss.minify(chunk.toString());
            this.push(output.styles);
            callback();
        }
    });
}

function handleRequest(req, res) {
    request
        .get(url)
        .pipe(createMinifyTransform())
        .pipe(res);
}

app.get('/', handleRequest);

app.listen(8080, () => console.log('%s listening at %s', app.name, app.url));

Answer 2

If you're looking to streamline your CSS code, consider using a Transform stream. This method involves retrieving the CSS code from a stream generated by request.get, applying minification techniques, and delivering the condensed CSS output.

Take a look at this practical demonstration:

const express = require('express');
const request = require('request');
const { Transform } = require('stream');
const CleanCSS = require('clean-css');

const app = express();
const cleanCss = new CleanCSS();
const url = 'http://www.example.com/css/style.css';

function createMinifyTransform() {
    return new Transform({
        transform(chunk, encoding, callback) {
            const output = cleanCss.minify(chunk.toString());
            this.push(output.styles);
            callback();
        }
    });
}

function handleRequest(req, res) {
    request
        .get(url)
        .pipe(createMinifyTransform())
        .pipe(res);
}

app.get('/', handleRequest);

app.listen(8080, () => console.log('%s listening at %s', app.name, app.url));

Instructions on utilizing clean-css with Node.js to process incoming requests

Answer №1

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