Introduction to Kompression

Kompression is a powerful and efficient compression library for modern web applications. It provides a wide range of APIs to help developers compress and decompress data with ease.

Getting Started with Kompression

To begin using Kompression, you need to install the library using npm or yarn:

  npm install kompression
  // or
  yarn add kompression

Kompression APIs

Here we introduce some of the most useful APIs provided by the Kompression library:

compress

This method compresses input data using the default settings.

  const kompression = require('kompression');
  const data = 'This is some data to compress';
  const compressedData = kompression.compress(data);
  console.log(compressedData);

decompress

Decompresses previously compressed data.

  const decompressedData = kompression.decompress(compressedData);
  console.log(decompressedData); // 'This is some data to compress'

compressFile

Compresses an entire file specified by its path.

  const filePath = './path/to/file.txt';
  kompression.compressFile(filePath, (err, compressedFilePath) => {
    if(err) throw err;
    console.log('File compressed to: ' + compressedFilePath);
  });

decompressFile

Decompresses a previously compressed file.

  const compressedFilePath = './path/to/compressed/file.kmp';
  kompression.decompressFile(compressedFilePath, (err, data) => {
    if(err) throw err;
    console.log('Decompressed data: ' + data);
  });

compressStream

Compresses a data stream in real-time.

  const input = fs.createReadStream('./path/to/input.txt');
  const output = fs.createWriteStream('./path/to/output.kmp');
  const compressStream = kompression.compressStream();

  input.pipe(compressStream).pipe(output);

decompressStream

Decompresses a data stream in real-time.

  const input = fs.createReadStream('./path/to/compressed/input.kmp');
  const output = fs.createWriteStream('./path/to/output.txt');
  const decompressStream = kompression.decompressStream();

  input.pipe(decompressStream).pipe(output);

Example Application

Let’s create an example Node.js application that demonstrates the use of the Kompression APIs introduced above.

  const fs = require('fs');
  const kompression = require('kompression');

  const data = 'This is an example of kompression in an app';

  // Compress the data
  const compressedData = kompression.compress(data);
  console.log('Compressed Data:', compressedData);

  // Decompress the data
  const decompressedData = kompression.decompress(compressedData);
  console.log('Decompressed Data:', decompressedData);

  // Compress a file
  const filePath = './example.txt';
  fs.writeFileSync(filePath, data);

  kompression.compressFile(filePath, (err, compressedFilePath) => {
    if(err) throw err;
    console.log('File compressed to:', compressedFilePath);

    // Decompress the file
    kompression.decompressFile(compressedFilePath, (err, decompressedFileData) => {
      if(err) throw err;
      console.log('Decompressed File Data:', decompressedFileData);
    });
  });

By following this guide, you can efficiently integrate the Kompression library into your Node.js applications for effective data compression and decompression.

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