Introduction to isbrotli

The isbrotli library is a powerful Python module used for Brotli compression, which is known for its high compression ratios and fast decompression speeds. Brotli is widely used for web assets to improve load times and minimize bandwidth usage. This guide aims to introduce several useful APIs provided by the isbrotli library, complete with code snippets and an example web application.

Getting Started with isbrotli

First, you need to install the isbrotli module via pip:

pip install isbrotli

Main APIs and Code Snippets

Compress Data

import isbrotli

data = "This is some text that we want to compress."
compressed_data = isbrotli.compress(data.encode('utf-8'))
print(compressed_data)

Decompress Data

import isbrotli

decompressed_data = isbrotli.decompress(compressed_data).decode('utf-8')
print(decompressed_data)

Set Compression Quality

import isbrotli

high_quality_data = isbrotli.compress(data.encode('utf-8'), quality=11)
print(high_quality_data)

Stream Compression

import isbrotli

compressor = isbrotli.Compressor()
compressed_chunk = compressor.compress(streamed_data_chunk.encode('utf-8'))
print(compressed_chunk)

Stream Decompression

import isbrotli

decompressor = isbrotli.Decompressor()
decompressed_chunk = decompressor.decompress(compressed_chunk)
print(decompressed_chunk)

Web Application Example

Below is an example of a simple Flask web application leveraging isbrotli for compressing and decompressing responses.

from flask import Flask, request, jsonify
import isbrotli

app = Flask(__name__)

@app.route('/compress', methods=['POST'])
def compress_text():
    data = request.json['data']
    compressed = isbrotli.compress(data.encode('utf-8'))
    return jsonify({"compressed_data": compressed.hex()})

@app.route('/decompress', methods=['POST'])
def decompress_text():
    hex_data = request.json['compressed_data']
    compressed_data = bytes.fromhex(hex_data)
    decompressed = isbrotli.decompress(compressed_data).decode('utf-8')
    return jsonify({"decompressed_data": decompressed})

if __name__ == '__main__':
    app.run(debug=True)

In this example, the /compress endpoint receives raw text, compresses it using isbrotli, and returns the compressed result as hexadecimal. Similarly, the /decompress endpoint receives the compressed hexadecimal data, decompresses it, and returns the original text.

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