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Name	Size	Permission
index.d.ts	542 B	-rw-r--r--
index.js	1.29 KB	-rw-r--r--
package.json	985 B	-rw-r--r--

Code Editor : index.js

'use strict';
const {Transform, PassThrough} = require('stream');
const zlib = require('zlib');
const mimicResponse = require('mimic-response');

module.exports = response => {
	const contentEncoding = (response.headers['content-encoding'] || '').toLowerCase();

if (!['gzip', 'deflate', 'br'].includes(contentEncoding)) {
		return response;
	}

// TODO: Remove this when targeting Node.js 12.
	const isBrotli = contentEncoding === 'br';
	if (isBrotli && typeof zlib.createBrotliDecompress !== 'function') {
		response.destroy(new Error('Brotli is not supported on Node.js < 12'));
		return response;
	}

let isEmpty = true;

const checker = new Transform({
		transform(data, _encoding, callback) {
			isEmpty = false;

callback(null, data);
		},

flush(callback) {
			callback();
		}
	});

const finalStream = new PassThrough({
		autoDestroy: false,
		destroy(error, callback) {
			response.destroy();

callback(error);
		}
	});

const decompressStream = isBrotli ? zlib.createBrotliDecompress() : zlib.createUnzip();

decompressStream.once('error', error => {
		if (isEmpty && !response.readable) {
			finalStream.end();
			return;
		}

finalStream.destroy(error);
	});

mimicResponse(response, finalStream);
	response.pipe(checker).pipe(decompressStream).pipe(finalStream);

return finalStream;
};

Urban Research Lab

The Urban Research Lab (URL) at IIIT-Delhi was established in 2020, during a time when the pandemic brought the complexities of urban life more visible than ever. What started as an initiative by faculty and students has grown into a collaborative space for critically exploring and reimagining the urban questions through research, dialogue, and interdisciplinary engagement.

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Code Editor : index.js

Urban Research Lab