gzip-lambda-example.py

from io import BytesIO
import base64
import gzip
import json


def gzip_b64encode(data):
    compressed = BytesIO()
    with gzip.GzipFile(fileobj=compressed, mode='w') as f:
        json_response = json.dumps(data)
        f.write(json_response.encode('utf-8'))
    return base64.b64encode(compressed.getvalue()).decode('ascii')


def lambda_handler(event, context):
    response = [{'name': 'Momo', 'age': 2}]
    return {
        'isBase64Encoded': True,
        'statusCode': 200,
        'headers': {
            'Content-Type': 'application/json',
            'Content-Encoding': 'gzip',
            'Access-Control-Allow-Origin': '*'
        },
        'body': gzip_b64encode(response)
    }